© Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 soft starters > General data

■ Benefits
6

Product characteristics / function Performance features / benefits

Automatic parameterization Extremely easy commissioning and reliability even under changing load
conditions

Hybrid switching devices and three-phase motor control Minimum power loss and optimum/symmetrical motor control

Integration into TIA Portal – communication modules optional Efficient configuration and maximum flexibility in automation engineering

Removable HMI with color display, local interface, slot for micro SD memory Maximum flexibility with regard to user interface and intuitive menu guidance
card

Pump stop and torque control Reduced mechanical loading and optimum pump stop control

Certified according to ATEX/IECEx directive Suitable for the starting of explosion-proof motors

6/14 Siemens IC 10 · 2020

 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 soft starters > General data

■ Technical specifications
More information
Technical specifications, see FAQs, see https://support.industry.siemens.com/cs/ww/en/ps/25099/faq
https://support.industry.siemens.com/cs/ww/en/ps/25099/td Simulation Tool for Soft Starters (STS), see page 6/8 or
Equipment Manual "SIRIUS 3RW55 Soft Starter", see https://support.industry.siemens.com/cs/ww/en/view/101494917
https://support.industry.siemens.com/cs/ww/en/view/109753752

Type 3RW551.-.HA.4 3RW552.-.HA.6 3RW552.-.HA.4 3RW554.-.HA.4 3RW554.-.HA.6 3RW555.-.HA.4 3RW555.-.HA.6

3RW551.-.HA.5 3RW553.-.HA.6 3RW553.-.HA.4
Installation/fixing/
dimensions
Width x height x depth mm 170 × 275 × 152 185 × 306 × 203 210 × 393 × 203 478 x 764 x 241
H

Type of mounting Screw fixing

Mounting position Vertical (can be rotated +/- 90° and tilted +/- 22.5° forward or backward)
Distance to be
maintained with

6
side-by-side mounting
• Above mm 100
• At the side mm 5
• Below mm 75
Maximum installation m 5 000 2 000 5 000 2 000 5 000 2 000
altitude above sea level1)
Degree of protection IP00
Ambient conditions
Ambient temperature
• During operation2) °C -25 ... +60
• During storage and °C -40 ... +80
transport
Environmental category
according to IEC 60721
• During operation 3K6 (no ice formation, no condensation), 3C3 (no salt mist),
3S2 (sand must not get into the devices), 3M6
• During storage 1K6 (only occasional condensation), 1C2 (no salt mist),
1S2 (sand must not enter the devices), 1M4
• During transport 2K2, 2C1, 2S1, 2M2 (max. height of fall 0.3 m)
1) Derating from 1 000 m, see characteristic curve on page 6/8.
2)
Note derating above 40 °C.

Siemens IC 10 · 2020 6/15

 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 soft starters > General data

Type 3RW55..-.HA0. 3RW55..-.HA1.

Control circuit/control
Control supply voltage
• At AC/DC, rated value V 24/24 --/--
• At AC V -- 110 ... 250
• Relative negative tolerance/relative positive tolerance with AC % -20/20 -15/10
• Relative negative tolerance/relative positive tolerance with DC % -20/20 --/--
Frequency of the control supply voltage Hz 50 ... 60
• Relative negative tolerance/relative positive tolerance % -10/10
Type of overvoltage protection Varistors
Type of short-circuit protection for control circuit1) Fuse 4 A gG (Icu = 1 kA), fuse 6 A quick-response (Icu = 1 kA),
MCB C1 (Icu = 600 A), MCB C6 (Icu = 300 A)
1)
Not included in scope of supply

Type 3RW55..-.HA.4 3RW55..-.HA.5 3RW55..-.HA.6

Power electronics
Operational voltage, rated value V 200 ... 480 200 ... 600 200 ... 690
• Relative negative tolerance/relative positive tolerance % -15/10
Operational voltage for inside-delta circuit, rated value V 200 ... 480 200 ... 600
• Relative negative tolerance/relative positive tolerance % -15/10
6

Operating frequency, rated value Hz 50 ... 60

• Relative negative tolerance/relative positive tolerance % -10/10
Minimum load [% of IM]1) % 10
Maximum cable length between soft starter and motor m 800
1)
Relative to set Ie.

6/16 Siemens IC 10 · 2020

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Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 soft starters > General data

Type 3RW5513 3RW5514 10

3RW5515 3RW5516 3RW5517
Rated operational current Ie A 13 18 25 32 38
Power electronics
Load rating with rated operational current Ie
IEC + UL/CSA, individual mounting at 40/50/60 °C, A 13/11.5/10.5 18/15.9/13.8 25/22.3/19.6 32/28.4/26 38/33.5/30.5
AC-53a
Permissible rated motor current and starts/h
Normal starting (CLASS 10A)
Rated motor current IM, Tu = 40/50/60 °C A 13/11.5/10.5 18/15.9/13.8 25/22.3/19.6 32/28.4/26 38/33.5/30.5
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 5 s 1/h 43 43 43 43 43
- Start-up time 10 s 1/h 18 18 18 18 18
• 350% IM
- Start-up time 5 s 1/h 28 28 28 28 28
- Start-up time 10 s 1/h 10 10 10 10 10
Normal starting (CLASS 10E)
Rated motor current IM, Tu = 40/50/60 °C A 13/11.5/10.5 18/15.9/13.8 25/22.3/19.6 32/28.4/26 38/33.5/30.5
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 5 s 1/h 21 21 21 21 21
- Start-up time 10 s 1/h 8 8 8 8 8

6
• 350% IM
- Start-up time 5 s 1/h 13 13 13 13 13
- Start-up time 10 s 1/h 4 4 4 4 4
Heavy starting (CLASS 20E)
Rated motor current IM, Tu = 40/50/60 °C A 13/11.5/10.5 18/15.9/13.8 25/22.3/19.6 29.6/27.2/23.6 33.5/30.5/27.5
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 20 s 1/h 10 10 10 10 10
- Start-up time 40 s 1/h 4 4 4 4 4
• 350% IM
- Start-up time 20 s 1/h 7 7 7 7 7
- Start-up time 40 s 1/h 2.5 2.5 2.5 2.5 2.5
Heavy starting (CLASS 30E)
Rated motor current IM, Tu = 40/50/60 °C A 13/11.5/10.5 18/15.9/13.8 25/22.3/19.6 26/23.6/21.2 29/26/23
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 20 s 1/h 7 7 7 7 7
- Start-up time 40 s 1/h 3 3 3 3 3
• 350% IM
- Start-up time 20 s 1/h 4 4 4 4 4
- Start-up time 40 s 1/h 1.8 1.8 1.8 1.8 1.8
Adjustable rated motor current IM
• Minimum/maximum A 2.5/13 3.5/18 5/25 6.5/32 7.5/38
• Minimum/maximum in inside-delta circuits A 4.3/22.5 6.1/31.1 8.7/43.3 11.3/55.4 13/65.8

Siemens IC 10 · 2020 6/17

 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 soft starters > General data

Type 3RW5521 3RW5524 3RW5525 3RW5526 3RW5527

Rated operational current Ie A 25 47 63 77 93
Power electronics
Load rating with rated operational current Ie
IEC + UL/CSA, individual mounting at 40/50/60 °C, A 25/22.3/19.6 47/41.6/36.2 63/55.5/50.5 77/68/62 93/82.5/75.5
AC-53a
Permissible rated motor current and starts/h
Normal starting (CLASS 10A)
Rated motor current IM, Tu = 40/50/60 °C A 25/22.3/19.6 47/41.6/36.2 63/55.5/50.5 77/68/62 93/82.5/75.5
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 5 s 1/h 43 43 43 43 43
- Start-up time 10 s 1/h 18 18 18 18 18
• 350% IM
- Start-up time 5 s 1/h 28 28 28 28 28
- Start-up time 10 s 1/h 10 10 10 10 10
Normal starting (CLASS 10E)
Rated motor current IM, Tu = 40/50/60 °C A 25/22.3/19.6 47/41.6/36.2 63/55.5/50.5 77/68/62 93/82.5/75.5
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 5 s 1/h 21 21 21 21 21
- Start-up time 10 s 1/h 8 8 8 8 8
6

• 350% IM
- Start-up time 5 s 1/h 13 13 13 13 13
- Start-up time 10 s 1/h 4 4 4 4 4
Heavy starting (CLASS 20E)
Rated motor current IM, Tu = 40/50/60 °C A 25/22.3/19.6 47/41.6/36.2 63/55.5/50.5 77/68/62 93/82.5/75.5
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 20 s 1/h 10 10 10 10 10
- Start-up time 40 s 1/h 4 4 4 4 4
• 350% IM
- Start-up time 20 s 1/h 7 7 7 7 7
- Start-up time 40 s 1/h 2.5 2.5 2.5 2.5 2.5
Heavy starting (CLASS 30E)
Rated motor current IM, Tu = 40/50/60 °C A 25/22.3/19.6 43.4/38/34.4 53/48/43 68/62/56 82.5/75.5/65
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 20 s 1/h 7 7 7 7 7
- Start-up time 40 s 1/h 3 3 3 3 3
• 350% IM
- Start-up time 20 s 1/h 4 4 4 4 4
- Start-up time 40 s 1/h 1.8 1.8 1.8 1.8 1.8
Adjustable rated motor current IM
• Minimum/maximum A 5/25 10/47 13/63 16/77 19/93
• Minimum/maximum in inside-delta circuits A 8.7/43.3 17.3/81.4 22.5/109 27.7/133 32.9/161

6/18 Siemens IC 10 · 2020

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Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 soft starters > General data

Type 10
3RW5534 3RW5535 3RW5536
Rated operational current Ie A 113 143 171
Power electronics
Load rating with rated operational current Ie
IEC + UL/CSA, individual mounting at 40/50/60 °C, A 113/101/89 143/128/118 171/153/141
AC-53a
Permissible rated motor current and starts/h
Normal starting (CLASS 10A)
Rated motor current IM, Tu = 40/50/60 °C A 113/101/89 143/128/118 171/153/141
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 5 s 1/h 43 43 43
- Start-up time 10 s 1/h 18 18 18
• 350% IM
- Start-up time 5 s 1/h 28 28 28
- Start-up time 10 s 1/h 10 10 10
Normal starting (CLASS 10E)
Rated motor current IM, Tu = 40/50/60 °C A 113/101/89 143/128/118 171/153/141
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 5 s 1/h 21 21 21
- Start-up time 10 s 1/h 8 8 8

6
• 350% IM
- Start-up time 5 s 1/h 13 13 13
- Start-up time 10 s 1/h 4 4 4
Heavy starting (CLASS 20E)
Rated motor current IM, Tu = 40/50/60 °C A 109/97/85 128/113/103 141/129/117
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 20 s 1/h 10 10 10
- Start-up time 40 s 1/h 4 4 4
• 350% IM
- Start-up time 20 s 1/h 7 7 7
- Start-up time 40 s 1/h 2.5 2.5 2.5
Heavy starting (CLASS 30E)
Rated motor current IM, Tu = 40/50/60 °C A 89/81/74 108/98/88 117/105/93
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 20 s 1/h 7 7 7
- Start-up time 40 s 1/h 3 3 3
• 350% IM
- Start-up time 20 s 1/h 4 4 4
- Start-up time 40 s 1/h 1.8 1.8 1.8
Adjustable rated motor current IM
• Minimum/maximum A 23/113 29/143 34/171
• Minimum/maximum in inside-delta circuits A 39.8/195 50.2/247 58.9/296

Siemens IC 10 · 2020 6/19

 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 soft starters > General data

Type 3RW5543 3RW5544 3RW5545 3RW5546 3RW5547 10

3RW5548
Rated operational current Ie A 210 250 315 370 470 570
Power electronics
Load rating with rated operational current Ie
IEC + UL/CSA, individual mounting at A 210/186/170 250/220/200 315/279/255 370/328/300 470/416/380 570/504/460
40/50/60 °C, AC-53a
Permissible rated motor current and starts/h
Normal starting (CLASS 10A)
Rated motor current IM, Tu = 40/50/60 °C A 210/186/170 250/220/200 315/279/255 370/328/300 470/416/380 570/504/460
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 5 s 1/h 43 43 43 43 40 20
- Start-up time 10 s 1/h 18 18 18 18 17 6
• 350% IM
- Start-up time 5 s 1/h 28 28 28 28 26 9
- Start-up time 10 s 1/h 10 10 10 10 10 1
Normal starting (CLASS 10E)
Rated motor current IM, Tu = 40/50/60 °C A 210/186/170 250/220/200 315/279/255 370/328/300 470/416/380 551/490/445
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 5 s 1/h 21 21 21 21 17 8
- Start-up time 10 s 1/h 8 8 8 8 6 1
6

• 350% IM
- Start-up time 5 s 1/h 13 13 13 13 10 2
- Start-up time 10 s 1/h 4 4 4 4 2 --
Heavy starting (CLASS 20E)
Rated motor current IM, Tu = 40/50/60 °C A 162/146/130 200/180/160 231/207/183 258/230/202 272/254/236 284/262/240
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 20 s 1/h 10 10 10 10 10 10
- Start-up time 40 s 1/h 4 4 4 4 4 4
• 350% IM
- Start-up time 20 s 1/h 7 7 7 7 7 7
- Start-up time 40 s 1/h 2.5 2.5 2.5 2.5 2.5 2.5
Heavy starting (CLASS 30E)
Rated motor current IM, Tu = 40/50/60 °C A 138/122/106 160/140/120 183/159/135 202/174/160 210/190/170 220/200/180
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 20 s 1/h 7 7 7 7 7 7
- Start-up time 40 s 1/h 3 3 3 3 3 3
• 350% IM
- Start-up time 20 s 1/h 4 4 4 4 4 4
- Start-up time 40 s 1/h 1.8 1.8 1.8 1.8 1.8 1.8
Adjustable rated motor current IM
• Minimum/maximum A 42/210 50/250 63/315 74/370 94/470 114/570
• Minimum/maximum in inside-delta circuits A 72.7/363 86.6/433 109.1/545 128.2/640 162.8/814 197.5/987

6/20 Siemens IC 10 · 2020

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Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 soft starters > General data

Type 3RW5552 3RW5553 3RW5554 3RW5556 3RW5558

Rated operational current Ie A 630 720 840 1 100 1 280
Power electronics
Load rating with rated operational current Ie
IEC + UL/CSA, individual mounting at 40/50/60 °C, A 630/561/510 720/641/580 840/748/670 1 100/979/890 1 280/1 139/1 030
AC-53a
Permissible rated motor current and starts/h
Normal starting (CLASS 10A)
Rated motor current IM, Tu = 40/50/60 °C A 630/561/510 720/641/580 840/748/670 1 100/979/890 1 280/1 139/1 030
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 5 s 1/h 43 43 42 43 32
- Start-up time 10 s 1/h 18 18 18 18 12
• 350% IM
- Start-up time 5 s 1/h 28 28 25 27 17
- Start-up time 10 s 1/h 10 10 10 9 4
Normal starting (CLASS 10E)
Rated motor current IM, Tu = 40/50/60 °C A 630/561/510 720/641/580 840/748/670 1 100/979/890 1 225/1 130/1 030
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 5 s 1/h 21 21 19 18 15
- Start-up time 10 s 1/h 8 8 7 7 5

6
• 350% IM
- Start-up time 5 s 1/h 13 13 10 9 1
- Start-up time 10 s 1/h 4 4 2 2 1
Heavy starting (CLASS 20E)
Rated motor current IM, Tu = 40/50/60 °C A 500/450/400 520/470/420 570/520/470 920/840/760 980/900/810
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 20 s 1/h 10 10 10 10 10
- Start-up time 40 s 1/h 4 4 4 4 4
• 350% IM
- Start-up time 20 s 1/h 7 7 7 7 7
- Start-up time 40 s 1/h 2.5 2.5 2.5 2.5 2.5
Heavy starting (CLASS 30E)
Rated motor current IM, Tu = 40/50/60 °C A 380/340/300 400/360/320 420/380/340 740/670/600 790/720/650
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 20 s 1/h 7 7 7 7 7
- Start-up time 40 s 1/h 3 3 3 3 3
• 350% IM
- Start-up time 20 s 1/h 4 4 4 4 4
- Start-up time 40 s 1/h 1.8 1.8 1.8 1.8 1.8
Adjustable rated motor current IM
• Minimum/maximum A 114/630 144/720 168/840 220/1 100 258/1 280
• Minimum/maximum in inside-delta circuits A 197.5/987 249.4/1 247 291/1 454 381.1/1 905 446.9/2 217

Siemens IC 10 · 2020 6/21

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Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 soft starters > General data
Motor feeders according to IEC with 3RV2/3VA motor starter protectors/circuit breakers (without semiconductor protection)
Type of coordination "1", CLASS 10,
short-circuit breaking capacity Iq in kA, see table
Note:
For general recommendations for constructing motor feeders
with soft starters, see page 6/10.

Q1 Q1

Q11 Q11
NSB0_01902

IC01_00544
M M
3~ 3~

Soft starters Motor starter protectors Motor starter protectors

for 400 V systems for 500 V systems for 400 V systems for 500 V systems
Q11 Q1 Iq Q1 Iq Q1 Iq Q1 Iq
Type Type kA Type kA Type kA Type kA
Type of Inline circuit Inside-delta circuit
6

ToC
coordina- 1
tion "1"
3RW5513 3RV2032-4TA10 65 3RV2032-4TA10 18 3RV2032-4DA10 65 3RV2032-4DA10 18
3RW5514 3RV2032-4DA10 65 3RV2032-4DA10 15 3RV2032-4EA10 65 3RV2032-4EA10 15
3RW5515 3RV2032-4EA10 65 3RV2032-4EA10 15 3RV2032-4VA10 65 3RV2032-4VA10 15
3RW5516 3RV2032-4VA10 65 3RV2032-4VA10 10 3RV2032-4JA10 65 3RV2032-4JA10 10
3RW5517 3RV2032-4WA10 65 3RV2032-4WA10 10 3RV2032-4RA10 65 3RV2032-4RA10 10
3RW5521 -- -- -- -- -- -- -- --
3RW5524 3RV2032-4JA10 65 3RV2032-4JA10 10 3RV2032-4RA10 65 3RV2032-4RA10 10
3RW5525 3VA2163-7MN32-0AA0 65 3VA2163-7MN32-0AA0 20 3VA2110-7MN32-0AA0 65 3VA2110-7MN32-0AA0 20
3RW5526 3VA2110-7MN32-0AA0 65 3VA2110-7MN32-0AA0 20 3VA2216-7MN32-0AA0 65 3VA2216-7MN32-0AA0 20
3RW5527 3VA2216-7MN32-0AA0 15 3VA2216-7MN32-0AA0 10 3VA2220-7MN32-0AA0 15 3VA2220-7MN32-0AA0 10
3RW5534 3VA2216-7MN32-0AA0 65 -- -- 3VA2220-7MN32-0AA0 65 -- --
3RW5535 3VA2220-7MN32-0AA0 65 -- -- 3VA2325-7MN32-0AA0 65 -- --
3RW5536 3VA2325-7MN32-0AA0 30 3VA2325-7MN32-0AA0 10 3VA2440-7MN32-0AA0 30 3VA2440-7MN32-0AA0 10
3RW5543 3VA2325-7MN32-0AA0 65 3VA2325-7MN32-0AA0 65 3VA2440-7MN32-0AA0 65 3VA2440-7MN32-0AA0 65
3RW5544 3VA2440-7MN32-0AA0 65 3VA2440-7MN32-0AA0 65 3VA2450-7MN32-0AA0 65 3VA2450-7MN32-0AA0 65
3RW5545 3VA2440-7MN32-0AA0 65 3VA2440-7MN32-0AA0 65 3VA2580-6HN32-0AA0 65 3VA2580-6HN32-0AA0 65
3RW5546 3VA2440-7MN32-0AA0 65 3VA2440-7MN32-0AA0 65 3VA2580-6HN32-0AA0 65 3VA2580-6HN32-0AA0 65
3RW5547 3VA2450-7MN32-0AA0 65 3VA2450-7MN32-0AA0 65 3VA2510-6HN32-0AA0 65 3VA2510-6HN32-0AA0 65
3RW5548 3VA2580-6HN32-0AA0 65 3VA2580-6HN32-0AA0 65 3VA2510-6HN32-0AA0 65 3VA2510-6HN32-0AA0 65
3RW5552 3VA2580-6HN32-0AA0 65 3VA2580-6HN32-0AA0 65 3VA2716-7AB05-0AA0 65 3VA2716-7AB05-0AA0 65
3RW5553 3VA2510-6HN32-0AA0 65 3VA2510-6HN32-0AA0 65 3VA2716-7AB05-0AA0 65 3VA2716-7AB05-0AA0 65
3RW5554 3VA2510-6HN32-0AA0 65 3VA2510-6HN32-0AA0 65 3VA2716-7AB05-0AA0 65 3VA2716-7AB05-0AA0 65
3RW5556 3VA2716-7AB05-0AA0 65 3VA2716-7AB05-0AA0 65 -- -- -- --
3RW5558 3VA2716-7AB05-0AA0 65 3VA2716-7AB05-0AA0 65 -- -- -- --

Note:
The service factor or measurement inaccuracies have been
taken into account, for example, for the selection of the specified
motor starter protectors/circuit breakers; the specified short-
circuit breaking capacities Iq in kA are covered by combination
tests. Smaller motor starter protectors/circuit breakers than
those specified can be used at any time as smaller ones trip
more quickly in the event of a short circuit (unchanged short-
circuit breaking capacity) and thus protect the soft starter in any
case. The dimensioning of the short-circuit components must,
however, be suitable for the connected three-phase motor and
the line protection for the cables used.
In 690 V systems, in motor feeder tests with soft starters demon-
strable short-circuit breaking capacities can only be achieved
with the use of fuses (Iq > 5 to 10 kA).

6/22 Siemens IC 10 · 2020

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Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 soft starters > General data
Motor feeders according to IEC with 3NA3 fuses
gG class full-range fuses for cable and line protection according
to IEC 60269-2, without semiconductor protection
Type of coordination "1",
short-circuit breaking capacity Iq = 65 kA
Note:
For general recommendations for constructing motor feeders
with soft starters, see page 6/10.

F1 F1 F1

Q21 Q21 Q21

Q11 Q11 Q11

IC01_00545a
NSB0_01904

IC01_00565
M M M
3~ 3~ 3~

Soft starters gG class fuse Line contactor (optional) gG class fuse Line contactor (optional)
for systems for systems for systems for systems for systems for systems for systems for systems

6
up to 690 V up to 480 V up to 690 V up to 600 V up to 480 V up to 600 V up to 480 V up to 600 V
in the supply in the supply in the delta in the delta
cable cable
Q11 F1 Q21 Q21 F1 Q21 Q21 Q21 Q21
Type Type Type Type Type Type Type Type Type
Type of ToC Inline circuit Inside-delta circuit
coordina- 1
tion "1"
3RW5513 3NA3820-6 3RT2025 3RT2025 3NA3820-6 3RT2027 3RT2035 3RT2025 3RT2025
3RW5514 3NA3820-6 3RT2026 3RT2027 3NA3820-6 3RT2027 3RT2037 3RT2026 3RT2027
3RW5515 3NA3822-6 3RT2027 3RT2037 3NA3822-6 3RT2036 3RT2037 3RT2027 3RT2037
3RW5516 3NA3824-6 3RT2035 3RT2037 3NA3824-6 3RT2037 3RT2038 3RT2035 3RT2037
3RW5517 3NA3824-6 3RT2035 3RT2037 3NA3824-6 3RT2038 3RT2046 3RT2035 3RT2037
3RW5521 3NA3824-6 3RT2027 3RT2037 3NA3824-6 3RT2036 3RT2037 3RT2027 3RT2037
3RW5524 3NA3824-6 3RT2036 3RT2037 3NA3824-6 3RT2046 3RT2047 3RT2036 3RT2037
3RW5525 3NA3830-6 3RT2037 3RT2046 3NA3830-6 3RT2047 3RT1054 3RT2037 3RT2046
3RW5526 3NA3132-6 3RT2038 3RT2046 3NA3132-6 3RT1055 3RT1055 3RT2038 3RT2046
3RW5527 3NA3136-6 3RT2046 3RT2047 3NA3136-6 3RT1056 3RT1056 3RT2046 3RT2047
3RW5534 3NA3244-6 3RT1054 3RT1054 3NA3244-6 3RT1064 3RT1064 3RT1054 3RT1054
3RW5535 3NA3244-6 3RT1055 3RT1055 3NA3244-6 3RT1065 3RT1065 3RT1055 3RT1055
3RW5536 3NA3365-6 3RT1056 3RT1064 3NA3365-6 3RT1066 3RT1075 3RT1056 3RT1064
3RW5543 2 x 3NA3354-6 3RT1064 3RT1064 2 x 3NA3354-6 3RT1075 3RT1075 3RT1064 3RT1064
3RW5544 2 x 3NA3354-6 3RT1065 3RT1065 2 x 3NA3354-6 3RT1076 3RT1076 3RT1065 3RT1065
3RW5545 2 x 3NA3365-6 3RT1075 3RT1075 2 x 3NA3365-6 3TF68 3TF68 3RT1075 3RT1075
3RW5546 2 x 3NA3365-6 3RT1075 3RT1075 2 x 3NA3365-6 3TF69 3TF69 3RT1075 3RT1075
3RW5547 2 x 3NA3365-6 3RT1076 3RT1276 2 x 3NA3365-6 3TF69 3TF69 3RT1076 3RT1276
3RW5548 2 x 3NA3365-6 3TF68 3TF68 2 x 3NA3365-6 -- -- 3TF68 3TF68
3RW5552 2 x 3NA3365-6 3TF68 3TF69 -- -- -- 3TF68 3TF69
3RW5553 2 x 3NA3365-6 3TF69 3TF69 -- -- -- 3TF69 3TF69
3RW5554 2 x 3NA3365-6 -- -- -- -- -- -- --
3RW5556 3 x 3NA3365-6 -- -- -- -- -- -- --
3RW5558 3 x 3NA3365-6 -- -- -- -- -- -- --

Note:
The specified short-circuit breaking capacities Iq in kA are
covered by combination tests. Smaller fuses than those speci-
fied can be used at any time as smaller ones trip more quickly in
the event of a short circuit (unchanged short-circuit breaking
capacity) and thus protect the soft starter in any case. The
dimensioning of the short-circuit components must, however, be
suitable for the connected three-phase motor and the line
protection for the cables used.
In inside-delta circuits, motor feeders with soft starters can only
be operated in systems with up to 600 V.

Siemens IC 10 · 2020 6/23

 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 soft starters > General data
Motor feeders according to IEC with 3NE1/3NB3 SITOR fuses
gR class full-range fuses for semiconductor protection, cable
and line protection
Type of coordination "2",
short-circuit breaking capacity Iq = 65 kA
Note:
For general recommendations for constructing motor feeders
with soft starters, see page 6/10.

F’1

Q21

Q11
NSB0_01905

M
3~

Soft starters gG class fuse Line contactor (optional)

for systems for systems for systems
6

up to 690 V up to 480 V up to 690 V

Q11 F’1 Q21 Q21
Type Type Type Type
Type of ToC Inline circuit
coordina- 2
tion "2"
3RW5513 3NE1815-0 3RT2025 3RT2025
3RW5514 3NE1802-0 3RT2026 3RT2027
3RW5515 3NE1817-0 3RT2027 3RT2037
3RW5516 3NE1818-0 3RT2035 3RT2037
3RW5517 3NE1820-0 3RT2035 3RT2037
3RW5521 3NE1817-0 3RT2027 3RT2037
3RW5524 3NE1021-2 3RT2036 3RT2037
3RW5525 3NE1022-0 3RT2037 3RT2046
3RW5526 3NE1224-0 3RT2038 3RT2046
3RW5527 3NE1224-0 3RT2046 3RT2047
3RW5534 3NE1225-0 3RT1054 3RT1054
3RW5535 3NE1227-0 3RT1055 3RT1055
3RW5536 3NE1230-0 3RT1056 3RT1064
3RW5543 3NE1230-21) 3RT1064 3RT1064
3RW5544 3NE1331-0 3RT1065 3RT1065
3RW5545 3NE1334-2 3RT1075 3RT1075
3RW5546 3NE1334-2 3RT1075 3RT1075
3RW5547 3NE1436-2 3RT1076 3RT1276
3RW5548 3NE1437-2 3TF68 3TF68
3RW5552 3NB3350-1KK26 3TF68 3TF69
3RW5553 3NB3351-1KK26 3TF69 3TF69
3RW5554 3NB3351-1KK26 -- --
3RW5556 3NB3354-1KK26 -- --
3RW5558 3NB3357-1KK26 -- --
1)
For systems up to 500 V.
Note:
The specified short-circuit breaking capacities Iq in kA are
covered by combination tests. Smaller fuses than those speci-
fied can be used at any time as smaller ones trip more quickly in
the event of a short circuit (unchanged short-circuit breaking
capacity) and thus protect the soft starter in any case. The
dimensioning of the short-circuit components must, however, be
suitable for the connected three-phase motor and the line
protection for the cables used.
In inside-delta circuits, a gR class full-range fuse could not
provide the semiconductor protection of the delta-connected
soft starter with a short-circuit breaking capacity that is ade-
quate for practical use. In this case, we recommend using
aR class partial-range fuses for semiconductor protection for
type of coordination "2" (see page 6/25).

6/24 Siemens IC 10 · 2020

 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 soft starters > General data
Motor feeders according to IEC with 3NE8 / 3NE3 / 3NC3 fuses
aR class partial-range fuses for semiconductor protection
Type of coordination "2",
short-circuit breaking capacity Iq = 65 kA
Note:
For general recommendations for constructing motor feeders
with soft starters, see page 6/10.

F1 F1 F1

Q21 Q21 Q21

F3 F3 F3

Q11 Q11 Q11

NSB0_01906

IC01_00546a

IC01_00566
M M M
3~ 3~ 3~

Soft starters gG class fuse aR class fuse Line contactor gG class fuse aR class fuse Line contactor (optional)
(optional)

6
for systems for systems for sys- for sys- for systems for systems for systems for systems for sys- for sys-
up to 690 V up to 690 V tems tems up to 600 V up to 600 V up to 480 V up to 600 V tems tems
up to up to in the sup- in the sup- up to up to
480 V 690 V ply cable ply cable 480 V 600 V
in the delta in the delta
Q11 F1 F3 Q21 Q21 F1 F3 Q21 Q21 Q21 Q21
Type Type Type Type Type Type Type Type Type Type Type
Type of ToC Inline circuit Inside-delta circuit
coordina- 2
tion "2"
3RW5513 3NA3820-6 3NE8017-1 3RT2025 3RT2025 3NA3820-6 3NE8017-1 3RT2027 3RT2035 3RT2025 3RT2025
3RW5514 3NA3820-6 3NE8020-1 3RT2026 3RT2027 3NA3820-6 3NE8020-1 3RT2027 3RT2037 3RT2026 3RT2027
3RW5515 3NA3822-6 3NE8021-1 3RT2027 3RT2037 3NA3822-6 3NE8021-1 3RT2036 3RT2037 3RT2027 3RT2037
3RW5516 3NA3824-6 3NE8022-1 3RT2035 3RT2037 3NA3824-6 3NE8022-1 3RT2037 3RT2038 3RT2035 3RT2037
3RW5517 3NA3824-6 3NE8024-1 3RT2035 3RT2037 3NA3824-6 3NE8024-1 3RT2038 3RT2046 3RT2035 3RT2037
3RW5521 3NA3824-6 3NE8021-1 3RT2027 3RT2037 3NA3824-6 3NE8021-1 3RT2036 3RT2037 3RT2027 3RT2037
3RW5524 3NA3824-6 3NE8024-1 3RT2036 3RT2037 3NA3824-6 3NE8024-1 3RT2046 3RT2047 3RT2036 3RT2037
3RW5525 3NA3830-6 3NE3227 3RT2037 3RT2046 3NA3830-6 3NE3227 3RT2047 3RT1054 3RT2037 3RT2046
3RW5526 3NA3132-6 3NE3227 3RT2038 3RT2046 3NA3132-6 3NE3227 3RT1055 3RT1055 3RT2038 3RT2046
3RW5527 3NA3136-6 3NE3227 3RT2046 3RT2047 3NA3136-6 3NE3227 3RT1056 3RT1056 3RT2046 3RT2047
3RW5534 3NA3244-6 3NE3231 3RT1054 3RT1054 3NA3244-6 3NE3231 3RT1064 3RT1064 3RT1054 3RT1054
3RW5535 3NA3244-6 3NE3233 3RT1055 3RT1055 3NA3244-6 3NE3233 3RT1065 3RT1065 3RT1055 3RT1055
3RW5536 3NA3365-6 3NE3334-0B 3RT1056 3RT1064 3NA3365-6 3NE3334-0B 3RT1066 3RT1075 3RT1056 3RT1064
3RW5543 2 x 3NA3354-6 3NE3333 3RT1064 3RT1064 2 x 3NA3354-6 3NE3333 3RT1075 3RT1075 3RT1064 3RT1064
3RW5544 2 x 3NA3354-6 3NE3335 3RT1065 3RT1065 2 x 3NA3354-6 3NE3335 3RT1076 3RT1076 3RT1065 3RT1065
3RW5545 2 x 3NA3365-6 -- 3RT1075 3RT1075 2 x 3NA3365-6 -- 3TF68 3TF68 3RT1075 3RT1075
3RW5546 2 x 3NA3365-6 -- 3RT1075 3RT1075 2 x 3NA3365-6 -- 3TF69 3TF69 3RT1075 3RT1075
3RW5547 2 x 3NA3365-6 3NE3340-8 3RT1076 3RT1276 2 x 3NA3365-6 3NE3340-8 3TF69 3TF69 3RT1076 3RT1276
3RW5548 2 x 3NA3365-6 3NC3342-1U 3TF68 3TF68 2 x 3NA3365-6 3NC3342-1U -- -- 3TF68 3TF68
3RW5552 2 x 3NA3365-6 3NC3343-1U 3TF68 3TF69 -- 3NC3343-1U -- -- 3TF68 3TF69
3RW5553 2 x 3NA3365-6 3NC3343-1U 3TF69 3TF69 -- 3NC3343-1U -- -- 3TF69 3TF69
3RW5554 2 x 3NA3365-6 3NC3343-1U -- -- -- 3NC3343-1U -- -- -- --
3RW5556 3 x 3NA3365-6 3 x 3NE3340-8 -- -- -- 3 x 3NE3340-8 -- -- -- --
3RW5558 3 x 3NA3365-6 3 x 3NE3340-8 -- -- -- 3 x 3NE3340-8 -- -- -- --

Note:
The specified short-circuit breaking capacities Iq in kA are
covered by combination tests. Smaller fuses than those speci-
fied can be used at any time as smaller ones trip more quickly in
the event of a short circuit (unchanged short-circuit breaking
capacity) and thus protect the soft starter in any case. The
dimensioning of the short-circuit components must, however, be
suitable for the connected three-phase motor and the line
protection for the cables used.
For CLASS 10 applications, as an alternative to the gG class
full-range fuses for cable and line protection 3NA3 (F1),
3RV2/3VA motor starter protectors/circuit breakers can also be
used, possibly with reduced short-circuit breaking capacity
(see page 6/22). In these cases, optional line contactors can be
dispensed with.
In inside-delta circuits, motor feeders with soft starters can only
be operated in systems with up to 600 V.

Siemens IC 10 · 2020 6/25

 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 soft starters > General data
Reversing operation with reversing contactors
Note:
For general recommendations for constructing motor feeders
with soft starters, see page 6/10.
(For an example circuit, see
3RW55 Equipment Manual, Appendix A.3)
Soft starters Reversing contactor assembly For reversing contactor
for systems up to 480 V for systems up to 690 V for systems up to 480 V for systems up to 690 V
Q11 Q21 / Q22 Q21 / Q22 Q21 / Q22 Q21 / Q22
Type Type Type Type Type
3RW5513 3RA2325 3RA2325 3RT2025 3RT2025
3RW5514 3RA2326 3RA2327 3RT2026 3RT2027
3RW5515 3RA2327 3RA2337 3RT2027 3RT2037
3RW5516 3RA2335 3RA2337 3RT2035 3RT2037
3RW5517 3RA2335 3RA2337 3RT2035 3RT2037
3RW5521 3RA2327 3RA2337 3RT2027 3RT2037
3RW5524 3RA2336 3RA2337 3RT2036 3RT2037
3RW5525 3RA2337 3RA2346 3RT2037 3RT2046
3RW5526 3RA2338 3RA2346 3RT2038 3RT2046
3RW5527 3RA2346 3RA2347 3RT2046 3RT2047
3RW5534 -- -- 3RT1054 3RT1054
3RW5535 -- -- 3RT1055 3RT1055
6

3RW5536 -- -- 3RT1056 3RT1064

3RW5543 -- -- 3RT1064 3RT1064
3RW5544 -- -- 3RT1065 3RT1065
3RW5545 -- -- 3RT1075 3RT1075
3RW5546 -- -- 3RT1075 3RT1075
3RW5547 -- -- 3RT1076 3RT1276
3RW5548 -- -- 3TF68 3TF68
3RW5552 -- -- 3TF68 3TF69
3RW5553 -- -- 3TF69 3TF69
3RW5554 -- -- -- --
3RW5556 -- -- -- --
3RW5558 -- -- -- --

DC braking with braking contactors

Note:
For general recommendations for constructing motor feeders
with soft starters, see page 6/10.
(For an example circuit, see
3RW55 Equipment Manual, Appendix A.3)
Soft starters DC braking contactor DC braking contactor assembly
for systems up to 400 V for systems up to 480 V for systems up to 690 V
with 2 NC contacts + with 3 NO contacts with 3 NO contacts with 3 NO contacts with 3 NO contacts
2 NO contacts parallel parallel parallel parallel parallel
Q11 Q93 Q91 Q92 Q91 Q92
Type Type Type Type Type Type
3RW5513 3RT2517 3RT2015 3RT2016 3RT2015 3RT2016
3RW5514 3RT2518 3RT2015 3RT2017 3RT2015 3RT2023
3RW5515 3RT2526 3RT2015 3RT2025 3RT2015 3RT2025
3RW5516 3RT2526 3RT2015 3RT2025 3RT2015 3RT2027
3RW5517 3RT2535 3RT2015 3RT2027 3RT2015 3RT2027
3RW5521 3RT2526 3RT2015 3RT2025 3RT2015 3RT2025
3RW5524 3RT2535 3RT2016 3RT2027 3RT2016 3RT2035
3RW5525 -- 3RT2024 3RT2027 3RT2024 3RT2037
3RW5526 -- 3RT2025 3RT2035 3RT2025 3RT2037
3RW5527 -- 3RT2027 3RT2036 3RT2027 3RT2037
3RW5534 -- 3RT2035 3RT2037 3RT2035 3RT2038
3RW5535 -- 3RT2036 3RT2038 3RT2036 3RT2046
3RW5536 -- 3RT2037 3RT2046 3RT2037 3RT2047
3RW5543 -- 3RT2045 3RT2047 3RT2045 3RT1054
3RW5544 -- 3RT2045 3RT1055 3RT2045 3RT1055
3RW5545 -- 3RT2446 3RT1056 3RT2446 3RT1056
3RW5546 -- 3RT1055 3RT1056 3RT1055 3RT1064
3RW5547 -- 3RT1456 3RT1065 3RT1456 3RT1065
3RW5548 -- 3RT1456 3RT1066 3RT1456 3RT1075
3RW5552 -- 3RT1065 3RT1075 3RT1065 3RT1075
3RW5553 -- 3RT1065 3RT1075 3RT1065 3RT1075
3RW5554 -- 3RT1466 3RT1076 3RT1466 3RT1076
3RW5556 -- 3RT1476 3TF68 3RT1476 3TF68
3RW5558 -- 3RT1476 3TF69 3RT1476 3TF69

6/26 Siemens IC 10 · 2020

 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 soft starters > Inline circuit

■ Selection and ordering data

For normal starting (CLASS 10E)

3RW551. 3RW552.

At 40 °C At 50 °C SD1) Article No. Price PU PS* PG

Opera- Operating power for Opera- Rating [hp] for three-phase motors per PU (UNIT,
tional three-phase motors tional SET, M)
current At At At At current At At At At
230 V 400 V 500 V 690 V 200/208 V 220/230 V 460/480 V 575/600 V
A kW kW kW kW A hp hp hp hp d

6
Operational voltage 200 ... 480 V
13 3 5.5 -- -- 11.5 2 3 7.5 -- 5 3RW5513-@HA@4 1 1 unit 42S
18 4 7.5 -- -- 15.9 3 5 10 -- 5 3RW5514-@HA@4 1 1 unit 42S
25 5.5 11 -- -- 22.3 5 7.5 15 -- 5 3RW5515-@HA@4 1 1 unit 42S
32 7.5 15 -- -- 28.4 7.5 10 20 -- 5 3RW5516-@HA@4 1 1 unit 42S
38 11 18.5 -- -- 33.5 10 10 20 -- 5 3RW5517-@HA@4 1 1 unit 42S
47 11 22 -- -- 41.6 10 10 30 -- 5 3RW5524-@HA@4 1 1 unit 42S
63 18.5 30 -- -- 55.5 15 20 40 -- 5 3RW5525-@HA@4 1 1 unit 42S
77 22 37 -- -- 68 20 25 50 -- 5 3RW5526-@HA@4 1 1 unit 42S
93 22 45 -- -- 82.5 25 30 60 -- 5 3RW5527-@HA@4 1 1 unit 42S

Type of electrical connection for the control circuit

Screw terminals 1
Spring-loaded terminals 3

Control supply voltage

24 V AC/DC 0
110 ... 250 V AC 1
1)
3RW55 soft starter with screw terminals for operational voltage up to 480 V:
Standard delivery time SD = 1 day (d).
Note:
For the constraints for the motor outputs specified here, see
page 6/8.

* You can order this quantity or a multiple thereof.

Illustrations are approximate Siemens IC 10 · 2020 6/27
 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 soft starters > Inline circuit
For normal starting (CLASS 10E)

3RW553. 3RW554. 3RW555.

At 40 °C At 50 °C SD1) Article No. Price PU PS* PG
Opera- Operating power for Opera- Rating [hp] for three-phase motors per PU (UNIT,
tional three-phase motors tional SET, M)
current At At At At current At At At At
230 V 400 V 500 V 690 V 200/208 V 220/230 V 460/480 V 575/600 V
A kW kW kW kW A hp hp hp hp d
Operational voltage 200 ... 480 V
6

113 30 55 -- -- 101 30 30 75 -- 5 3RW5534-@HA@4 1 1 unit 42S

143 37 75 -- -- 128 40 40 100 -- 5 3RW5535-@HA@4 1 1 unit 42S
171 45 90 -- -- 153 50 50 100 -- 5 3RW5536-@HA@4 1 1 unit 42S
210 55 110 -- -- 186 50 60 150 -- 5 3RW5543-@HA@4 1 1 unit 42S
250 75 132 -- -- 220 60 75 150 -- 5 3RW5544-@HA@4 1 1 unit 42S
315 90 160 -- -- 279 75 100 200 -- 5 3RW5545-@HA@4 1 1 unit 42S
370 110 200 -- -- 328 100 125 250 -- 5 3RW5546-@HA@4 1 1 unit 42S
470 132 250 -- -- 416 150 150 350 -- 5 3RW5547-@HA@4 1 1 unit 42S
570 160 315 -- -- 504 150 200 400 -- 5 3RW5548-@HA@4 1 1 unit 42S
630 200 355 -- -- 561 200 200 450 -- 15 3RW5552-@HA@4 1 1 unit 42S
720 200 400 -- -- 641 200 250 500 -- 15 3RW5553-@HA@4 1 1 unit 42S
840 250 450 -- -- 748 250 300 600 -- 15 3RW5554-@HA@4 1 1 unit 42S
1 100 315 560 -- -- 979 350 400 850 -- 15 3RW5556-@HA@4 1 1 unit 42S
1 280 400 710 -- -- 1 139 400 450 1 000 -- 15 3RW5558-@HA@4 1 1 unit 42S

Type of electrical connection for the control circuit

Spring-loaded terminals 2
Screw terminals 6

Control supply voltage

24 V AC/DC 0
110 ... 250 V AC 1
1) 3RW55 soft starter with screw terminals for operational voltage up to 480 V:
Standard delivery time SD = 1 day (d).
Note:
For the constraints for the motor outputs specified here, see
page 6/8.

* You can order this quantity or a multiple thereof.

6/28 Siemens IC 10 · 2020 Illustrations are approximate
 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 soft starters > Inline circuit
For normal starting (CLASS 10E)

3RW551. 3RW552.

At 40 °C At 50 °C SD1) Article No. Price PU PS* PG

Opera- Operating power for Opera- Rating [hp] for three-phase motors per PU (UNIT,
tional three-phase motors tional SET, M)
current At At At At current At At At At
230 V 400 V 500 V 690 V 200/208 V 220/230 V 460/480 V 575/600 V
A kW kW kW kW A hp hp hp hp d
Operational voltage 200 ... 600 V
13 3 5.5 7.5 -- 11.5 2 3 7.5 10 5 3RW5513-@HA@5 1 1 unit 42S
18 4 7.5 11 -- 15.9 3 5 10 10 5 3RW5514-@HA@5 1 1 unit 42S

6
25 5.5 11 15 -- 22.3 5 7.5 15 20 5 3RW5515-@HA@5 1 1 unit 42S
32 7.5 15 18.5 -- 28.4 7.5 10 20 25 5 3RW5516-@HA@5 1 1 unit 42S
38 11 18.5 22 -- 33.5 10 10 20 30 5 3RW5517-@HA@5 1 1 unit 42S
Operational voltage 200 ... 690 V
25 5.5 11 15 22 22.3 5 7.5 15 20 5 3RW5521-@HA@6 1 1 unit 42S
47 11 22 30 45 41.6 10 10 30 40 5 3RW5524-@HA@6 1 1 unit 42S
63 18.5 30 37 55 55.5 15 20 40 50 5 3RW5525-@HA@6 1 1 unit 42S
77 22 37 45 75 68 20 25 50 60 5 3RW5526-@HA@6 1 1 unit 42S
93 22 45 55 90 82.5 25 30 60 75 5 3RW5527-@HA@6 1 1 unit 42S

Type of electrical connection for the control circuit

Screw terminals 1
Spring-loaded terminals 3

Control supply voltage

24 V AC/DC 0
110 ... 250 V AC 1
1) 3RW55 soft starter with screw terminals for operational voltage up to 690 V:
Standard delivery time SD = 2 days (d).
Note:
For the constraints for the motor outputs specified here, see
page 6/8.

* You can order this quantity or a multiple thereof.

Illustrations are approximate Siemens IC 10 · 2020 6/29
 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 soft starters > Inline circuit
For normal starting (CLASS 10E)

3RW553. 3RW554. 3RW555.

At 40 °C At 50 °C SD1) Article No. Price PU PS* PG

Opera- Operating power for Opera- Rating [hp] for three-phase motors per PU (UNIT,
tional three-phase motors tional SET, M)
current At At At At current At At At At
230 V 400 V 500 V 690 V 200/208 V 220/230 V 460/480 V 575/600 V
A kW kW kW kW A hp hp hp hp d
Operational voltage 200 ... 690 V
6

113 30 55 75 110 101 30 30 75 100 5 3RW5534-@HA@6 1 1 unit 42S

143 37 75 90 132 128 40 40 100 125 5 3RW5535-@HA@6 1 1 unit 42S
171 45 90 110 160 153 50 50 100 150 5 3RW5536-@HA@6 1 1 unit 42S
210 55 110 132 200 186 60 60 150 150 5 3RW5543-@HA@6 1 1 unit 42S
250 75 132 160 250 220 60 75 150 200 5 3RW5544-@HA@6 1 1 unit 42S
315 90 160 200 315 279 75 100 200 250 5 3RW5545-@HA@6 1 1 unit 42S
370 110 200 250 355 328 100 125 250 300 5 3RW5546-@HA@6 1 1 unit 42S
470 132 250 315 400 416 150 150 350 450 5 3RW5547-@HA@6 1 1 unit 42S
570 160 315 355 560 504 150 200 400 500 5 3RW5548-@HA@6 1 1 unit 42S
630 200 355 400 630 561 200 200 450 600 15 3RW5552-@HA@6 1 1 unit 42S
720 200 400 500 710 641 200 250 500 700 15 3RW5553-@HA@6 1 1 unit 42S
840 250 450 560 800 748 250 300 600 800 15 3RW5554-@HA@6 1 1 unit 42S
1 100 215 560 710 1 000 979 350 400 850 1 100 15 3RW5556-@HA@6 1 1 unit 42S
1 280 400 710 900 1 200 1 139 400 450 1 000 1 250 15 3RW5558-@HA@6 1 1 unit 42S

Type of electrical connection for the control circuit

Spring-loaded terminals 2
Screw terminals 6

Control supply voltage

24 V AC/DC 0
110 ... 250 V AC 1
1) 3RW55 soft starter with screw terminals for operational voltage up to 690 V:
- Sizes 3 and 4: Standard delivery time SD = 2 days (d).
- Size 5: Standard delivery time SD = 5 days (d).
Note:
For the constraints for the motor outputs specified here, see
page 6/8.

* You can order this quantity or a multiple thereof.

6/30 Siemens IC 10 · 2020 Illustrations are approximate
 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 soft starters > Inside-delta circuit

■ Selection and ordering data

For normal starting (CLASS 10E)

3RW551. 3RW552.

At 40 °C for inside-delta circuit At 50 °C for inside-delta circuit SD1) Article No. Price PU PS* PG
Opera- Operating power for Opera- Rating [hp] for three-phase motors per PU (UNIT,
tional three-phase motors tional SET, M)
current At At At current At At At At
230 V 400 V 500 V 200/208 V 220/230 V 460/480 V 575/600 V
A kW kW kW A hp hp hp hp d

6
Operational voltage 200 ... 480 V
22.5 5.5 11 -- 19.9 5 5 10 -- 5 3RW5513-@HA@4 1 1 unit 42S
31.5 7.5 15 -- 28 7.5 7.5 20 -- 5 3RW5514-@HA@4 1 1 unit 42S
43.3 11 18.5 -- 39 10 10 25 -- 5 3RW5515-@HA@4 1 1 unit 42S
55.4 15 22 -- 49 15 15 30 -- 5 3RW5516-@HA@4 1 1 unit 42S
65.8 18.5 30 -- 58 15 20 40 -- 5 3RW5517-@HA@4 1 1 unit 42S
81.4 22 45 -- 72 20 25 50 -- 5 3RW5524-@HA@4 1 1 unit 42S
109 30 55 -- 96 30 30 75 -- 5 3RW5525-@HA@4 1 1 unit 42S
133 37 75 -- 118 30 40 75 -- 5 3RW5526-@HA@4 1 1 unit 42S
161 45 90 -- 143 40 50 100 -- 5 3RW5527-@HA@4 1 1 unit 42S

Type of electrical connection for the control circuit

Screw terminals 1
Spring-loaded terminals 3

Control supply voltage

24 V AC/DC 0
110 ... 250 V AC 1
1) 3RW55 soft starter with screw terminals for operational voltage up to 480 V:
Standard delivery time SD = 1 day (d).
Note:
For the constraints for the motor outputs specified here, see
page 6/8.

* You can order this quantity or a multiple thereof.

Illustrations are approximate Siemens IC 10 · 2020 6/31
 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 soft starters > Inside-delta circuit
For normal starting (CLASS 10E)

3RW553. 3RW554. 3RW555.

At 40 °C for inside-delta circuit At 50 °C for inside-delta circuit SD1) Article No. Price PU PS* PG
Opera- Operating power for Opera- Rating [hp] for three-phase motors per PU (UNIT,
tional three-phase motors tional SET, M)
current At At At current At At At At
230 V 400 V 500 V 200/208 V 220/230 V 460/480 V 575/600 V
A kW kW kW A hp hp hp hp d
Operational voltage 200 ... 480 V
6

196 55 110 -- 175 50 60 125 -- 5 3RW5534-@HA@4 1 1 unit 42S

248 75 132 -- 222 75 75 150 -- 5 3RW5535-@HA@4 1 1 unit 42S
296 90 160 -- 265 75 100 200 -- 5 3RW5536-@HA@4 1 1 unit 42S
364 110 200 -- 322 100 125 250 -- 5 3RW5543-@HA@4 1 1 unit 42S
433 132 250 -- 381 125 150 300 -- 5 3RW5544-@HA@4 1 1 unit 42S
546 160 315 -- 483 150 200 400 -- 5 3RW5545-@HA@4 1 1 unit 42S
641 200 355 -- 568 200 200 450 -- 5 3RW5546-@HA@4 1 1 unit 42S
814 250 400 -- 721 250 250 600 -- 5 3RW5547-@HA@4 1 1 unit 42S
987 315 560 -- 873 300 350 750 -- 5 3RW5548-@HA@4 1 1 unit 42S
1 091 355 630 -- 972 350 400 850 -- 15 3RW5552-@HA@4 1 1 unit 42S
1 247 400 710 -- 1 110 400 450 950 -- 15 3RW5553-@HA@4 1 1 unit 42S
1 454 450 800 -- 1 295 450 550 1 150 -- 15 3RW5554-@HA@4 1 1 unit 42S
1 905 560 1 000 -- 1 695 600 700 1 500 -- 15 3RW5556-@HA@4 1 1 unit 42S
2 217 710 1 200 -- 1 973 700 850 1 700 -- 15 3RW5558-@HA@4 1 1 unit 42S

Type of electrical connection for the control circuit

Spring-loaded terminals 2
Screw terminals 6

Control supply voltage

24 V AC/DC 0
110 ... 250 V AC 1
1) 3RW55 soft starter with screw terminals for operational voltage up to 480 V:
Standard delivery time SD = 1 day (d).
Note:
For the constraints for the motor outputs specified here, see
page 6/8.

* You can order this quantity or a multiple thereof.

6/32 Siemens IC 10 · 2020 Illustrations are approximate
 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 soft starters > Inside-delta circuit
For normal starting (CLASS 10E)

3RW551. 3RW552.

At 40 °C for inside-delta circuit At 50 °C for inside-delta circuit SD1) Article No. Price PU PS* PG
Opera- Operating power for Opera- Rating [hp] for three-phase motors per PU (UNIT,
tional three-phase motors tional SET, M)
current At At At current At At At At
230 V 400 V 500 V 200/208 V 220/230 V 460/480 V 575/600 V
A kW kW kW A hp hp hp hp d
Operational voltage 200 ... 600 V
22.5 5.5 11 15 19.9 5 5 10 15 5 3RW5513-@HA@5 1 1 unit 42S
31.5 7.5 15 18.5 28 7.5 7.5 20 25 5 3RW5514-@HA@5 1 1 unit 42S

6
43.3 11 18.5 22 39 10 10 25 30 5 3RW5515-@HA@5 1 1 unit 42S
55.4 15 22 30 49 15 15 30 40 5 3RW5516-@HA@5 1 1 unit 42S
65.8 18.5 30 37 58 15 20 40 50 5 3RW5517-@HA@5 1 1 unit 42S
43.3 11 18.5 22 39 10 10 25 30 5 3RW5521-@HA@6 1 1 unit 42S
81.4 22 45 45 72 20 25 50 60 5 3RW5524-@HA@6 1 1 unit 42S
109 30 55 55 96 30 30 75 75 5 3RW5525-@HA@6 1 1 unit 42S
133 37 75 90 118 30 40 75 100 5 3RW5526-@HA@6 1 1 unit 42S
161 45 90 110 143 40 50 100 125 5 3RW5527-@HA@6 1 1 unit 42S

Type of electrical connection for the control circuit

Screw terminals 1
Spring-loaded terminals 3

Control supply voltage

24 V AC/DC 0
110 ... 250 V AC 1
1) 3RW55 soft starter with screw terminals for operational voltage up to 600 V:
Standard delivery time SD = 2 days (d).
Note:
For the constraints for the motor outputs specified here, see
page 6/8.

* You can order this quantity or a multiple thereof.

Illustrations are approximate Siemens IC 10 · 2020 6/33
 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 soft starters > Inside-delta circuit
For normal starting (CLASS 10E)

3RW553. 3RW554. 3RW555.

At 40 °C for inside-delta circuit At 50 °C for inside-delta circuit SD1) Article No. Price PU PS* PG
Opera- Operating power for Opera- Rating [hp] for three-phase motors per PU (UNIT,
tional three-phase motors tional SET, M)
current At At At current At At At At
230 V 400 V 500 V 200/208 V 220/230 V 460/480 V 575/600 V
A kW kW kW A hp hp hp hp d
Operational voltage 200 ... 600 V
6

196 55 110 132 175 50 60 125 150 5 3RW5534-@HA@6 1 1 unit 42S

248 75 132 160 222 75 75 150 200 5 3RW5535-@HA@6 1 1 unit 42S
296 90 160 200 265 75 100 200 250 5 3RW5536-@HA@6 1 1 unit 42S
364 110 200 250 322 100 125 250 300 5 3RW5543-@HA@6 1 1 unit 42S
433 132 250 315 381 125 150 300 350 5 3RW5544-@HA@6 1 1 unit 42S
546 160 315 355 483 150 200 400 500 5 3RW5545-@HA@6 1 1 unit 42S
641 200 355 450 568 200 200 450 600 5 3RW5546-@HA@6 1 1 unit 42S
814 250 400 500 721 250 250 600 800 5 3RW5547-@HA@6 1 1 unit 42S
987 315 560 630 873 300 350 750 950 5 3RW5548-@HA@6 1 1 unit 42S
1 091 355 630 710 972 350 400 850 1 050 15 3RW5552-@HA@6 1 1 unit 42S
1 247 400 710 800 1 110 400 450 950 1 250 15 3RW5553-@HA@6 1 1 unit 42S
1 454 450 800 900 1 295 450 550 1 150 1 450 15 3RW5554-@HA@6 1 1 unit 42S
1 905 560 1 000 1 200 1 695 600 700 1 500 1 900 15 3RW5556-@HA@6 1 1 unit 42S
2 217 710 1 200 1 500 1 973 700 850 1 700 2 200 15 3RW5558-@HA@6 1 1 unit 42S

Type of electrical connection for the control circuit

Spring-loaded terminals 2
Screw terminals 6

Control supply voltage

24 V AC/DC 0
110 ... 250 V AC 1
1) 3RW55 soft starter with screw terminals for operational voltage up to 600 V:
- Sizes 3 and 4: Standard delivery time SD = 2 days (d).
- Size 5: Standard delivery time SD = 5 days (d).
Note:
For the constraints for the motor outputs specified here, see
page 6/8.

* You can order this quantity or a multiple thereof.

6/34 Siemens IC 10 · 2020 Illustrations are approximate
 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 soft starters > Accessories

■ Selection and ordering data

Product Manufacturer's Type of Application SD Article No. Price PU PS* PG
designation Article No. of the product per PU (UNIT,
soft starter SET, M)
d
Fan covers
Fan cover 3RW551 (1x), -- -- } 3RW5983-0FC00 1 1 unit 42S
3RW552 (2x),
3RW553 (2x)
3RW554 (1x) -- -- } 3RW5984-0FC00 1 1 unit 42S
3RW5983-0FC00 3RW555 (3x) -- -- } 3RW5985-0FC00 1 1 unit 42S
Terminal covers
Terminal 3RW552 (2x), -- -- } 3RW5983-0TC20 1 1 unit 42S
cover 3RW553 (2x)

3RW5983-0TC20
3RW554 (2x) -- -- } 3RW5984-0TC20 1 1 unit 42S

6
3RW5984-0TC20
Enclosure components
Hinged cover 3RW55 Without -- } 3RW5950-0GL20 1 1 unit 42S
cutout

3RW5950-0GL20
Communication modules
Communica- 3RW55 PROFINET -- } 3RW5950-0CH00 1 1 unit 42S
tion module High Feature
with integral
switch
PROFINET -- } 3RW5980-0CS00 1 1 unit 42S
Standard
PROFIBUS -- } 3RW5980-0CP00 1 1 unit 42S

3RW5980-0CS00
EtherNet/IP -- } 3RW5980-0CE00 1 1 unit 42S

3RW5980-0CE00
Modbus RTU -- } 3RW5980-0CR00 1 1 unit 42S
Modbus TCP -- } 3RW5980-0CT00 1 1 unit 42S

3RW5980-0CR00

* You can order this quantity or a multiple thereof.

Illustrations are approximate Siemens IC 10 · 2020 6/35
 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 soft starters > Accessories

Product Manufacturer's Type of Application SD Article No. Price PU PS* PG

designation Article No. of the product per PU (UNIT,
soft starter SET, M)
d
HMI modules
IP65 door 3RW55 IP65 For HMI } 3RW5980-0HD00 1 1 unit 42S
mounting kit modules
for HMI
modules

3RW5980-0HD00
Connecting cables
HMI connec- 3RW55 5 m, round For door } 3RW5980-0HC60 1 1 unit 42S
tion cable 2.5 m, round mounting } 3UF7933-0BA00-0 1 1 unit 42J
1.0 m, round } 3UF7937-0BA00-0 1 1 unit 42J
0.5 m, round } 3UF7932-0BA00-0 1 1 unit 42J
6

3UF793.-0BA00-0
Further accessories
Push-in lugs -- Two lugs are For HMI 2 3ZY1311-0AA00 1 10 units 41L
for wall required per modules and
mounting device communica-
tion modules

3ZY1311-0AA00
Blank labels
Unit labeling 20 mm x For SIRIUS 20 3RT2900-1SB20 100 340 units 41B
plates1) 7 mm, devices
titanium gray
IC01_00181

3RT2900-1SB20
3RW55 starter kit
SIRIUS -- Including 5 3RW5951-1ES04 1 1 unit 42S
3RW55 3RW55 soft starter 13 A,
starter kit 200 ... 480 V, 24 V AC/DC
Soft Starter ES V15.1,
24 V power supply unit,
connecting cable and
RJ45 network cable

3RW5951-1ES04
1)
PC labeling systems for individual inscription of unit labeling plates are
available from: murrplastik Systemtechnik GmbH (see page 16/15).

* You can order this quantity or a multiple thereof.

6/36 Siemens IC 10 · 2020 Illustrations are approximate
 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
NEW NEU
3RW55 Failsafe soft starters > General data

■ Overview
More information
Homepage, see www.siemens.com/soft-starter Simulation Tool for Soft Starters (STS), see page 6/8 or
Industry Mall, see www.siemens.com/product?3RW https://support.industry.siemens.com/cs/ww/en/view/101494917
Industry Online Support (SIOS) topic page, see SIRIUS Soft Starter ES (TIA Portal), see page 14/2
https://support.industry.siemens.com/cs/ww/en/view/109747404

Equipped with the utmost functionality, the SIRIUS 3RW55

Failsafe High Performance soft starters confidently handle even
difficult starting and stopping operations. Thanks to innovative
torque control, the device can be used for drives with an output
of between 5.5 kW and 560 kW (at 400 V).
The innovative 3RW55 Failsafe soft starter features an integrated
fail-safe digital input for directly connecting the EMERGENCY
STOP, and thus covers SIL 1 STO applications. The HMI (with
color display, local interface and a slot for micro SD memory
card) and plug-in communication modules (PROFINET,
PROFIBUS, EtherNet/IP and Modbus) ensure maximum
flexibility. With their modern hybrid switching technology, the
3RW55 Failsafe soft starters offer efficient switching for
long-term, energy-saving use.

6
5

1
6

7
IC01_00690

2 4

1 3RW55 Failsafe soft starter

2 Communication modules 6 HMI push-in lugs for wall mounting

3 Hinged cover 7 HMI IP65 door mounting kit
4 Fan covers 8 HMI soft starter connection cable
5 Terminal covers

3RW55 Failsafe High Performance soft starters with accessories (see page 6/52)

Siemens IC 10 · 2020 6/37

 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 Failsafe soft starters > General data NEW NEU

■ Benefits
6

Product characteristics / function Performance features / benefits

Automatic parameterization Extremely easy commissioning and reliability even under changing load
conditions

Hybrid switching devices and three-phase motor control Minimum power loss and optimum/symmetrical motor control

Integration into TIA Portal – communication modules optional Efficient configuration and maximum flexibility in automation engineering

Removable HMI with color display, local interface, slot for micro SD memory Maximum flexibility with regard to user interface and intuitive menu guidance
card

Pump stop and torque control Reduced mechanical loading and optimum pump stop control

Certified according to ATEX/IECEx directive Suitable for the starting of explosion-proof motors

Fail-safe disconnection up to SIL 3 - PL e / STO Reduced costs and space requirements thanks to direct wiring of the
EMERGENCY STOP mushroom pushbutton to the soft starter for SIL 1

6/38 Siemens IC 10 · 2020

 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
NEW NEU
3RW55 Failsafe soft starters > General data

■ Technical specifications
More information
Technical specifications, see FAQs, see https://support.industry.siemens.com/cs/ww/en/ps/25776/faq
https://support.industry.siemens.com/cs/ww/en/ps/25776/td Simulation Tool for Soft Starters (STS), see page 6/8 or
Equipment Manual "SIRIUS 3RW55 Soft Starter", see https://support.industry.siemens.com/cs/ww/en/view/101494917
https://support.industry.siemens.com/cs/ww/en/view/109753752

Type 3RW551.-.HF.4 3RW552.-.HF.4 3RW554.-.HF.4

3RW553.-.HF.4
Installation/fixing/dimensions
Width x height x depth H mm 170 × 275 × 152 185 × 306 × 203 210 × 393 × 203

D
W

Type of mounting Screw fixing

Mounting position Vertical (can be rotated +/- 90° and tilted +/- 22.5° forward or backward)
Distance to be maintained with side-by-side mounting
• Above mm 100
• At the side mm 5

6
• Below mm 75
Maximum installation altitude above sea level1) m 2 000
Degree of protection IP00
Ambient conditions
Ambient temperature
• During operation2) °C -25 ... +60
• During storage and transport °C -40 ... +80
Environmental category according to IEC 60721
• During operation 3K6 (no ice formation, no condensation), 3C3 (no salt mist),
3S2 (sand must not get into the devices), 3M6
• During storage 1K6 (only occasional condensation), 1C2 (no salt mist),
1S2 (sand must not enter the devices), 1M4
• During transport 2K2, 2C1, 2S1, 2M2 (max. height of fall 0.3 m)
1)
Derating from 1 000 m, see characteristic curve on page 6/8.
2)
Note derating above 40 °C.

Siemens IC 10 · 2020 6/39

 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 Failsafe soft starters > General data NEW NEU

Type 3RW55..-.HF0. 3RW55..-.HF1.

Control circuit/control
Control supply voltage
• At AC/DC, rated value V 24/24 --/--
• At AC V -- 110 ... 250
• Relative negative tolerance/relative positive tolerance with AC % -20/20 -15/10
• Relative negative tolerance/relative positive tolerance with DC % -20/20 --/--
Frequency of the control supply voltage Hz 50 ... 60
• Relative negative tolerance/relative positive tolerance % -10/10
Type of overvoltage protection Varistors
Type of short-circuit protection for control circuit1) Fuse 4 A gG (Icu = 1 kA), fuse 6 A quick-response (Icu = 1 kA),
MCB C1 (Icu = 600 A), MCB C6 (Icu = 300 A)
1)
Not included in scope of supply

Type 3RW55..-.HF.4
Power electronics
Operational voltage, rated value V 200 ... 480
• Relative negative tolerance/relative positive tolerance % -15/10
Operational voltage for inside-delta circuit, rated value V 200 ... 480
• Relative negative tolerance/relative positive tolerance % -15/10
6

Operating frequency, rated value Hz 50 ... 60

• Relative negative tolerance/relative positive tolerance % -10/10
Minimum load [% of IM]1) % 10
Maximum cable length between soft starter and motor m 800
1)
Relative to set Ie.

6/40 Siemens IC 10 · 2020

 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
NEW NEU
3RW55 Failsafe soft starters > General data

Type 3RW5513 3RW5514 10

3RW5515 3RW5516 3RW5517
Rated operational current Ie A 13 18 25 32 38
Power electronics
Load rating with rated operational current Ie
IEC + UL/CSA, individual mounting at 40/50/60 °C, A 13/11.5/10.5 18/15.9/13.8 25/22.3/19.6 25/22.3/19.6 38/33.5/30.5
AC-53a
Permissible rated motor current and starts/h
Normal starting (CLASS 10A)
Rated motor current IM, Tu = 40/50/60 °C A 13/11.5/10.5 18/15.9/13.8 25/22.3/19.6 32/28.4/26 38/33.5/30.5
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 5 s 1/h 43 43 43 43 43
- Start-up time 10 s 1/h 18 18 18 18 18
• 350% IM
- Start-up time 5 s 1/h 28 28 28 28 28
- Start-up time 10 s 1/h 10 10 10 10 10
Normal starting (CLASS 10E)
Rated motor current IM, Tu = 40/50/60 °C A 13/11.5/10.5 18/15.9/13.8 25/22.3/19.6 32/28.4/26 38/33.5/30.5
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 5 s 1/h 21 21 21 21 21
- Start-up time 10 s 1/h 8 8 8 8 8

6
• 350% IM
- Start-up time 5 s 1/h 13 13 13 13 13
- Start-up time 10 s 1/h 4 4 4 4 4
Heavy starting (CLASS 20E)
Rated motor current IM, Tu = 40/50/60 °C A 13/11.5/10.5 18/15.9/13.8 25/22.3/19.6 29.6/27.2/23.6 33.5/30.5/27.5
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 20 s 1/h 10 10 10 10 10
- Start-up time 40 s 1/h 4 4 4 4 4
• 350% IM
- Start-up time 20 s 1/h 7 7 7 7 7
- Start-up time 40 s 1/h 2.5 2.5 2.5 2.5 2.5
Heavy starting (CLASS 30E)
Rated motor current IM, Tu = 40/50/60 °C A 13/11.5/10.5 18/15.9/13.8 25/22.3/19.6 26/23.6/21.2 29/26/23
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 20 s 1/h 7 7 7 7 7
- Start-up time 40 s 1/h 3 3 3 3 3
• 350% IM
- Start-up time 20 s 1/h 4 4 4 4 4
- Start-up time 40 s 1/h 1.8 1.8 1.8 1.8 1.8
Adjustable rated motor current IM
• Minimum/maximum A 2.5/13 3.5/18 5/25 6.5/32 7.5/38
• Minimum/maximum in inside-delta circuits A 4.3/22.5 6.1/31.1 8.7/43.3 11.3/55.4 13/65.8

Siemens IC 10 · 2020 6/41

 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 Failsafe soft starters > General data NEW NEU

Type 3RW5524 3RW5525 3RW5526 3RW5527

Rated operational current Ie A 47 63 77 93
Power electronics
Load rating with rated operational current Ie
IEC + UL/CSA, individual mounting at 40/50/60 °C, A 47/41.6/36.2 63/55.5/50.5 77/68/62 93/82.5/75.5
AC-53a
Permissible rated motor current and starts/h
Normal starting (CLASS 10A)
Rated motor current IM, Tu = 40/50/60 °C A 47/41.6/36.2 63/55.5/50.5 77/68/62 93/82.5/75.5
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 5 s 1/h 43 43 43 43
- Start-up time 10 s 1/h 18 18 18 18
• 350% IM
- Start-up time 5 s 1/h 28 28 28 28
- Start-up time 10 s 1/h 10 10 10 10
Normal starting (CLASS 10E)
Rated motor current IM, Tu = 40/50/60 °C A 47/41.6/36.2 63/55.5/50.5 77/68/62 93/82.5/75.5
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 5 s 1/h 21 21 21 21
- Start-up time 10 s 1/h 8 8 8 8
6

• 350% IM
- Start-up time 5 s 1/h 13 13 13 13
- Start-up time 10 s 1/h 4 4 4 4
Heavy starting (CLASS 20E)
Rated motor current IM, Tu = 40/50/60 °C A 47/41.6/36.2 63/55.5/50.5 77/68/62 93/82.5/75.5
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 20 s 1/h 10 10 10 10
- Start-up time 40 s 1/h 4 4 4 4
• 350% IM
- Start-up time 20 s 1/h 7 7 7 7
- Start-up time 40 s 1/h 2.5 0 0 0
Heavy starting (CLASS 30E)
Rated motor current IM, Tu = 40/50/60 °C A 43.4/38/34.4 53/48/43 68/62/56 82.5/75.5/65
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 20 s 1/h 7 7 7 7
- Start-up time 40 s 1/h 3 3 3 3
• 350% IM
- Start-up time 20 s 1/h 4 4 4 4
- Start-up time 40 s 1/h 1.8 1.8 1.8 1.8
Adjustable rated motor current IM
• Minimum/maximum A 10/47 13/63 16/77 19/93
• Minimum/maximum in inside-delta circuits A 17.3/81.4 22.5/109 27.7/133 32.9/161

6/42 Siemens IC 10 · 2020

 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
NEW NEU
3RW55 Failsafe soft starters > General data

Type 3RW5534 3RW5535 3RW5536

Rated operational current Ie A 113 143 171
Power electronics
Load rating with rated operational current Ie
IEC + UL/CSA, individual mounting at 40/50/60 °C, A 113/101/89 143/128/118 171/153/141
AC-53a
Permissible rated motor current and starts/h
Normal starting (CLASS 10A)
Rated motor current IM, Tu = 40/50/60 °C A 113/101/89 143/128/118 171/153/141
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 5 s 1/h 43 43 35
- Start-up time 10 s 1/h 18 18 13
• 350% IM
- Start-up time 5 s 1/h 28 17 10
- Start-up time 10 s 1/h 10 4 0
Normal starting (CLASS 10E)
Rated motor current IM, Tu = 40/50/60 °C A 113/101/89 143/128/118 171/153/141
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 5 s 1/h 21 21 14
- Start-up time 10 s 1/h 8 7 4

6
• 350% IM
- Start-up time 5 s 1/h 13 4 0
- Start-up time 10 s 1/h 4 0 0
Heavy starting (CLASS 20E)
Rated motor current IM, Tu = 40/50/60 °C A 109/97/85 128/113/103 141/129/117
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 20 s 1/h 10 10 10
- Start-up time 40 s 1/h 4 4 4
• 350% IM
- Start-up time 20 s 1/h 7 6 6
- Start-up time 40 s 1/h 0 0 0
Heavy starting (CLASS 30E)
Rated motor current IM, Tu = 40/50/60 °C A 89/81/74 108/98/88 117/105/93
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 20 s 1/h 7 7 7
- Start-up time 40 s 1/h 3 3 3
• 350% IM
- Start-up time 20 s 1/h 4 4 4
- Start-up time 40 s 1/h 1.8 1.8 1.8
Adjustable rated motor current IM
• Minimum/maximum A 23/113 29/143 34/171
• Minimum/maximum in inside-delta circuits A 39.8/195 50.2/247 58.9/296

Siemens IC 10 · 2020 6/43

 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 Failsafe soft starters > General data NEW NEU

Type 3RW5543 3RW5544 3RW5545 3RW5546 3RW5547 10

3RW5548
Rated operational current Ie A 210 250 315 370 470 570
Power electronics
Load rating with rated operational current Ie
IEC + UL/CSA, individual mounting at 40/50/60 °C, A 210/186/170 250/220/200 315/279/255 370/328/300 470/416/380 570/504/460
AC-53a
Permissible rated motor current and starts/h
Normal starting (CLASS 10A)
Rated motor current IM, Tu = 40/50/60 °C A 210/186/170 250/220/200 315/279/255 370/328/300 470/416/380 570/504/460
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 5 s 1/h 43 43 38 43 32 13
- Start-up time 10 s 1/h 13 18 14 18 13 3
• 350% IM
- Start-up time 5 s 1/h 14 28 19 28 19 4
- Start-up time 10 s 1/h 0 10 5 10 6 0.4
Normal starting (CLASS 10E)
Rated motor current IM, Tu = 40/50/60 °C A 210/186/170 250/220/200 315/279/255 370/328/300 470/416/380 551/490/445
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 5 s 1/h 13 21 14 20 13 5
- Start-up time 10 s 1/h 2 8 4 8 3 --
6

• 350% IM
- Start-up time 5 s 1/h 0 13 5 12 6 1
- Start-up time 10 s 1/h 0 4 0 3 0.4 --
Heavy starting (CLASS 20E)
Rated motor current IM, Tu = 40/50/60 °C A 162/146/130 200/180/160 231/207/183 258/230/202 272/254/236 284/262/240
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 20 s 1/h 10 10 10 10 10 10
- Start-up time 40 s 1/h 4 4 4 4 4 4
• 350% IM
- Start-up time 20 s 1/h 7 7 7 7 7 7
- Start-up time 40 s 1/h 2 2.5 2.5 2.5 2.5 2.5
Heavy starting (CLASS 30E)
Rated motor current IM, Tu = 40/50/60 °C A 138/122/106 160/140/120 183/159/135 202/174/160 210/190/170 220/200/180
ON period = 70%; motor protection activated
• 300% IM
- Start-up time 20 s 1/h 7 7 7 7 7 7
- Start-up time 40 s 1/h 3 3 3 3 3 3
• 350% IM
- Start-up time 20 s 1/h 4 4 4 4 4 4
- Start-up time 40 s 1/h 1.8 1.8 1.8 1.8 1.8 1.8
Adjustable rated motor current IM
• Minimum/maximum A 42/210 50/250 63/315 74/370 94/470 114/570
• Minimum/maximum in inside-delta circuits A 72.7/363 86.6/433 109.1/545 128.2/640 162.8/814 197.5/987

6/44 Siemens IC 10 · 2020

 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
NEW NEU
3RW55 Failsafe soft starters > General data
Motor feeders according to IEC with 3RV2/3VA motor starter protectors/circuit breakers (without semiconductor protection)
Type of coordination "1", CLASS 10,
short-circuit breaking capacity Iq in kA, see table
Note:
For general recommendations for constructing motor feeders
with soft starters, see page 6/10.

Q1 Q1

Q11 Q11
NSB0_01902

IC01_00544
M M
3~ 3~

Soft starters Motor starter protectors Motor starter protectors

for 400 V systems for 480 V systems for 400 V systems for 480 V systems
Q11 Q1 Iq Q1 Iq Q1 Iq Q1 Iq
Type Type kA Type kA Type kA Type kA
Type of Inline circuit Inside-delta circuit

6
ToC
coordina- 1
tion "1"
3RW5513 3RV2032-4TA10 65 3RV2032-4TA10 18 3RV2032-4DA10 65 3RV2032-4DA10 18
3RW5514 3RV2032-4DA10 65 3RV2032-4DA10 15 3RV2032-4EA10 65 3RV2032-4EA10 15
3RW5515 3RV2032-4EA10 65 3RV2032-4EA10 15 3RV2032-4VA10 65 3RV2032-4VA10 15
3RW5516 3RV2032-4VA10 65 3RV2032-4VA10 10 3RV2032-4JA10 65 3RV2032-4JA10 10
3RW5517 3RV2032-4WA10 65 3RV2032-4WA10 10 3RV2032-4RA10 65 3RV2032-4RA10 10
3RW5524 3RV2032-4JA10 65 3RV2032-4JA10 10 3RV2032-4RA10 65 3RV2032-4RA10 10
3RW5525 3VA2163-7MN32-0AA0 65 3VA2163-7MN32-0AA0 20 3VA2110-7MN32-0AA0 65 3VA2110-7MN32-0AA0 20
3RW5526 3VA2110-7MN32-0AA0 65 3VA2110-7MN32-0AA0 20 3VA2216-7MN32-0AA0 65 3VA2216-7MN32-0AA0 20
3RW5527 3VA2216-7MN32-0AA0 15 3VA2216-7MN32-0AA0 10 3VA2220-7MN32-0AA0 15 3VA2220-7MN32-0AA0 10
3RW5534 3VA2216-7MN32-0AA0 65 -- -- 3VA2220-7MN32-0AA0 65 -- --
3RW5535 3VA2220-7MN32-0AA0 65 -- -- 3VA2325-7MN32-0AA0 65 -- --
3RW5536 3VA2325-7MN32-0AA0 30 3VA2325-7MN32-0AA0 10 3VA2440-7MN32-0AA0 30 3VA2440-7MN32-0AA0 10
3RW5543 3VA2325-7MN32-0AA0 65 3VA2325-7MN32-0AA0 65 3VA2440-7MN32-0AA0 65 3VA2440-7MN32-0AA0 65
3RW5544 3VA2440-7MN32-0AA0 65 3VA2440-7MN32-0AA0 65 3VA2450-7MN32-0AA0 65 3VA2450-7MN32-0AA0 65
3RW5545 3VA2440-7MN32-0AA0 65 3VA2440-7MN32-0AA0 65 3VA2580-6HN32-0AA0 65 3VA2580-6HN32-0AA0 65
3RW5546 3VA2440-7MN32-0AA0 65 3VA2440-7MN32-0AA0 65 3VA2580-6HN32-0AA0 65 3VA2580-6HN32-0AA0 65
3RW5547 3VA2450-7MN32-0AA0 65 3VA2450-7MN32-0AA0 65 3VA2510-6HN32-0AA0 65 3VA2510-6HN32-0AA0 65
3RW5548 3VA2580-6HN32-0AA0 65 3VA2580-6HN32-0AA0 65 3VA2510-6HN32-0AA0 65 3VA2510-6HN32-0AA0 65

Note:
The service factor or measurement inaccuracies have been
taken into account, for example, for the selection of the specified
motor starter protectors/circuit breakers; the specified short-
circuit breaking capacities Iq in kA are covered by combination
tests. Smaller motor starter protectors/circuit breakers than
those specified can be used at any time as smaller ones trip
more quickly in the event of a short circuit (unchanged short-
circuit breaking capacity) and thus protect the soft starter in any
case. The dimensioning of the short-circuit components must,
however, be suitable for the connected three-phase motor and
the line protection for the cables used.

Siemens IC 10 · 2020 6/45

 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 Failsafe soft starters > General data NEW NEU

Motor feeders according to IEC with 3NA3 fuses

gG class full-range fuses for cable and line protection according
to IEC 60269-2, without semiconductor protection
Type of coordination "1",
short-circuit breaking capacity Iq = 65 kA
Note:
For general recommendations for constructing motor feeders
with soft starters, see page 6/10.

F1 F1 F1

Q21 Q21 Q21

Q11 Q11 Q11

IC01_00545a
NSB0_01904

IC01_00565
M M M
3~ 3~ 3~

Soft starters gG class fuse Line contactor gG class fuse Line contactor (optional)
(optional)
6

for systems for systems for systems for systems for systems
up to 480 V up to 480 V up to 480 V up to 480 V up to 480 V
in the supply cable in the delta
Q11 F1 Q21 F1 Q21 Q21
Type Type Type Type Type Type
Type of ToC Inline circuit Inside-delta circuit
coordina- 1
tion "1"
3RW5513 3NA3820-6 3RT2025 3NA3820-6 3RT2027 3RT2025
3RW5514 3NA3820-6 3RT2026 3NA3820-6 3RT2027 3RT2026
3RW5515 3NA3822-6 3RT2027 3NA3822-6 3RT2036 3RT2027
3RW5516 3NA3824-6 3RT2035 3NA3824-6 3RT2037 3RT2035
3RW5517 3NA3824-6 3RT2035 3NA3824-6 3RT2038 3RT2035
3RW5524 3NA3824-6 3RT2036 3NA3824-6 3RT2046 3RT2036
3RW5525 3NA3830-6 3RT2037 3NA3830-6 3RT2047 3RT2037
3RW5526 3NA3132-6 3RT2038 3NA3132-6 3RT1055 3RT2038
3RW5527 3NA3136-6 3RT2046 3NA3136-6 3RT1056 3RT2046
3RW5534 3NA3244-6 3RT1054 3NA3244-6 3RT1064 3RT1054
3RW5535 3NA3244-6 3RT1055 3NA3244-6 3RT1065 3RT1055
3RW5536 3NA3365-6 3RT1056 3NA3365-6 3RT1066 3RT1056
3RW5543 2 x 3NA3354-6 3RT1064 2 x 3NA3354-6 3RT1075 3RT1064
3RW5544 2 x 3NA3354-6 3RT1065 2 x 3NA3354-6 3RT1076 3RT1065
3RW5545 2 x 3NA3365-6 3RT1075 2 x 3NA3365-6 3TF68 3RT1075
3RW5546 2 x 3NA3365-6 3RT1075 2 x 3NA3365-6 3TF69 3RT1075
3RW5547 2 x 3NA3365-6 3RT1076 2 x 3NA3365-6 3TF69 3RT1076
3RW5548 2 x 3NA3365-6 3TF68 2 x 3NA3365-6 -- 3TF68

Note:
The specified short-circuit breaking capacities Iq in kA are
covered by combination tests. Smaller fuses than those speci-
fied can be used at any time as smaller ones trip more quickly in
the event of a short circuit (unchanged short-circuit breaking
capacity) and thus protect the soft starter in any case. The
dimensioning of the short-circuit components must, however, be
suitable for the connected three-phase motor and the line
protection for the cables used.

6/46 Siemens IC 10 · 2020

 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
NEW NEU
3RW55 Failsafe soft starters > General data
Motor feeders according to IEC with 3NE1 SITOR fuses
gR class full-range fuses for semiconductor protection, cable
and line protection
Type of coordination "2",
short-circuit breaking capacity Iq = 65 kA
Note:
For general recommendations for constructing motor feeders
with soft starters, see page 6/10.

F’1

Q21

Q11
NSB0_01905

M
3~

Soft starters gG class fuse Line contactor (optional)

for systems for systems

6
up to 480 V up to 480 V
Q11 F’1 Q21
Type Type Type
Type of ToC Inline circuit
coordina- 2
tion "2"
3RW5513 3NE1815-0 3RT2025
3RW5514 3NE1802-0 3RT2026
3RW5515 3NE1817-0 3RT2027
3RW5516 3NE1818-0 3RT2035
3RW5517 3NE1820-0 3RT2035
3RW5524 3NE1021-2 3RT2036
3RW5525 3NE1022-0 3RT2037
3RW5526 3NE1224-0 3RT2038
3RW5527 3NE1224-0 3RT2046
3RW5534 3NE1225-0 3RT1054
3RW5535 3NE1227-0 3RT1055
3RW5536 3NE1230-0 3RT1056
3RW5543 3NE1230-2 3RT1064
3RW5544 3NE1331-0 3RT1065
3RW5545 3NE1334-2 3RT1075
3RW5546 3NE1334-2 3RT1075
3RW5547 3NE1436-2 3RT1076
3RW5548 3NE1437-2 3TF68

Note:
The specified short-circuit breaking capacities Iq in kA are
covered by combination tests. Smaller fuses than those speci-
fied can be used at any time as smaller ones trip more quickly in
the event of a short circuit (unchanged short-circuit breaking
capacity) and thus protect the soft starter in any case. The
dimensioning of the short-circuit components must, however, be
suitable for the connected three-phase motor and the line
protection for the cables used.
In inside-delta circuits, a gR class full-range fuse could not
provide the semiconductor protection of the delta-connected
soft starter with a short-circuit breaking capacity that is
adequate for practical use. In this case, we recommend using
aR class partial-range fuses for semiconductor protection for
type of coordination "2" (see page 6/48).

Siemens IC 10 · 2020 6/47

 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 Failsafe soft starters > General data NEW NEU

Motor feeders according to IEC with 3NE8 / 3NE3 / 3NC3 fuses

aR class partial-range fuses for semiconductor protection
Type of coordination "2",
short-circuit breaking capacity Iq = 65 kA
Note:
For general recommendations for constructing motor feeders
with soft starters, see page 6/10.

F1 F1 F1

Q21 Q21 Q21

F3 F3 F3

Q11 Q11 Q11

NSB0_01906

IC01_00546a

IC01_00566
M M M
3~ 3~ 3~

Soft starters gG class fuse aR class fuse Line contactor gG class fuse aR class fuse Line contactor (optional)
(optional)
6

for systems for systems for systems for systems for systems for systems for systems
up to 480 V up to 480 V up to 480 V up to 480 V up to 480 V up to 480 V up to 480 V
in the supply in the delta
cable
Q11 F1 F3 Q21 F1 F3 Q21 Q21
Type Type Type Type Type Type Type Type
Type of ToC Inline circuit Inside-delta circuit
coordina- 2
tion "2"
3RW5513 3NA3820-6 3NE8017-1 3RT2025 3NA3820-6 3NE8017-1 3RT2027 3RT2025
3RW5514 3NA3820-6 3NE8020-1 3RT2026 3NA3820-6 3NE8020-1 3RT2027 3RT2026
3RW5515 3NA3822-6 3NE8021-1 3RT2027 3NA3822-6 3NE8021-1 3RT2036 3RT2027
3RW5516 3NA3824-6 3NE8022-1 3RT2035 3NA3824-6 3NE8022-1 3RT2037 3RT2035
3RW5517 3NA3824-6 3NE8024-1 3RT2035 3NA3824-6 3NE8024-1 3RT2038 3RT2035
3RW5524 3NA3824-6 3NE8024-1 3RT2036 3NA3824-6 3NE8024-1 3RT2046 3RT2036
3RW5525 3NA3830-6 3NE3227 3RT2037 3NA3830-6 3NE3227 3RT2047 3RT2037
3RW5526 3NA3132-6 3NE3227 3RT2038 3NA3132-6 3NE3227 3RT1055 3RT2038
3RW5527 3NA3136-6 3NE3227 3RT2046 3NA3136-6 3NE3227 3RT1056 3RT2046
3RW5534 3NA3244-6 3NE3231 3RT1054 3NA3244-6 3NE3231 3RT1064 3RT1054
3RW5535 3NA3244-6 3NE3233 3RT1055 3NA3244-6 3NE3233 3RT1065 3RT1055
3RW5536 3NA3365-6 3NE3334-0B 3RT1056 3NA3365-6 3NE3334-0B 3RT1066 3RT1056
3RW5543 2 x 3NA3354-6 3NE3333 3RT1064 2 x 3NA3354-6 3NE3333 3RT1075 3RT1064
3RW5544 2 x 3NA3354-6 3NE3335 3RT1065 2 x 3NA3354-6 3NE3335 3RT1076 3RT1065
3RW5545 2 x 3NA3365-6 -- 3RT1075 2 x 3NA3365-6 -- 3TF68 3RT1075
3RW5546 2 x 3NA3365-6 -- 3RT1075 2 x 3NA3365-6 -- 3TF69 3RT1075
3RW5547 2 x 3NA3365-6 3NE3340-8 3RT1076 2 x 3NA3365-6 3NE3340-8 3TF69 3RT1076
3RW5548 2 x 3NA3365-6 3NC3342-1U 3TF68 2 x 3NA3365-6 3NC3342-1U -- 3TF68

Note:
The specified short-circuit breaking capacities Iq in kA are
covered by combination tests. Smaller fuses than those speci-
fied can be used at any time as smaller ones trip more quickly in
the event of a short circuit (unchanged short-circuit breaking
capacity) and thus protect the soft starter in any case. The
dimensioning of the short-circuit components must, however, be
suitable for the connected three-phase motor and the line
protection for the cables used.
For CLASS 10 applications, as an alternative to the gG class
full-range fuses for cable and line protection 3NA3 (F1),
3RV2/3VA motor starter protectors/circuit breakers can also be
used, possibly with reduced short-circuit breaking capacity
(see page 6/45). In these cases, optional line contactors can be
dispensed with.

6/48 Siemens IC 10 · 2020

 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
NEW NEU
3RW55 Failsafe soft starters > General data
Reversing operation with reversing contactors
Note:
For general recommendations for constructing motor feeders
with soft starters, see page 6/10.
(For an example circuit, see
3RW55 Equipment Manual, Appendix A.3)
Soft starters Reversing contactor assembly For reversing contactor
for systems up to 480 V for systems up to 480 V
Q11 Q21 / Q22 Q21 / Q22
Type Type Type
3RW5513 3RA2325 3RT2025
3RW5514 3RA2326 3RT2026
3RW5515 3RA2327 3RT2027
3RW5516 3RA2335 3RT2035
3RW5517 3RA2335 3RT2035
3RW5524 3RA2336 3RT2036
3RW5525 3RA2337 3RT2037
3RW5526 3RA2338 3RT2038
3RW5527 3RA2346 3RT2046
3RW5534 -- 3RT1054
3RW5535 -- 3RT1055
3RW5536 -- 3RT1056

6
3RW5543 -- 3RT1064
3RW5544 -- 3RT1065
3RW5545 -- 3RT1075
3RW5546 -- 3RT1075
3RW5547 -- 3RT1076
3RW5548 -- 3TF68

Siemens IC 10 · 2020 6/49

 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 Failsafe soft starters > Inline circuit NEW NEU

■ Selection and ordering data

For normal starting (CLASS 10E)

3RW551. 3RW552. 3RW553. 3RW554.

At 40 °C At 50 °C SD1) Article No. Price PU PS* PG
Opera- Operating power for Opera- Rating [hp] for three-phase motors per PU (UNIT,
tional three-phase motors tional SET, M)
current At At current At At At
230 V 400 V 200/208 V 220/230 V 460/480 V
A kW kW A hp hp hp d
Operational voltage 200 ... 480 V
6

13 3 5.5 11.5 2 3 7.5 5 3RW5513-@HF@4 1 1 unit 42S

18 4 7.5 15.9 3 5 10 5 3RW5514-@HF@4 1 1 unit 42S
25 5.5 11 22.3 5 7.5 15 5 3RW5515-@HF@4 1 1 unit 42S
32 7.5 15 28.4 7.5 10 20 5 3RW5516-@HF@4 1 1 unit 42S
38 11 18.5 33.5 10 10 20 5 3RW5517-@HF@4 1 1 unit 42S
47 11 22 41.6 10 10 30 5 3RW5524-@HF@4 1 1 unit 42S
63 18.5 30 55.5 15 20 40 5 3RW5525-@HF@4 1 1 unit 42S
77 22 37 68 20 25 50 5 3RW5526-@HF@4 1 1 unit 42S
93 22 45 82.5 25 30 60 5 3RW5527-@HF@4 1 1 unit 42S

Type of electrical connection for the control circuit

Screw terminals 1
Spring-loaded terminals 3

Control supply voltage

24 V AC/DC 0
110 ... 250 V AC 1
1)
3RW55 soft starter with screw terminals for operational voltage up to 480 V: Note:
Standard delivery time SD = 1 day (d).
For the constraints for the motor outputs specified here, see
page 6/8.

At 40 °C At 50 °C SD1) Article No. Price PU PS* PG

Opera- Operating power for Opera- Rating [hp] for three-phase motors per PU (UNIT,
tional three-phase motors tional SET, M)
current At At current At At At
230 V 400 V 200/208 V 220/230 V 460/480 V
A kW kW A hp hp hp d
Operational voltage 200 ... 480 V
113 30 55 101 30 30 75 5 3RW5534-@HF@4 1 1 unit 42S
143 37 75 128 40 40 100 5 3RW5535-@HF@4 1 1 unit 42S
171 45 90 153 50 50 100 5 3RW5536-@HF@4 1 1 unit 42S
210 55 110 186 50 60 150 5 3RW5543-@HF@4 1 1 unit 42S
250 75 132 220 60 75 150 5 3RW5544-@HF@4 1 1 unit 42S
315 90 160 279 75 100 200 5 3RW5545-@HF@4 1 1 unit 42S
370 110 200 328 100 125 250 5 3RW5546-@HF@4 1 1 unit 42S
470 132 250 416 150 150 350 5 3RW5547-@HF@4 1 1 unit 42S
570 160 315 504 150 200 400 5 3RW5548-@HF@4 1 1 unit 42S

Type of electrical connection for the control circuit

Spring-loaded terminals 2
Screw terminals 6

Control supply voltage

24 V AC/DC 0
110 ... 250 V AC 1
1)
3RW55 soft starter with screw terminals for operational voltage up to 480 V: Note:
Standard delivery time SD = 1 day (d).
For the constraints for the motor outputs specified here, see
page 6/8.

* You can order this quantity or a multiple thereof.

6/50 Siemens IC 10 · 2020 Illustrations are approximate
 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
NEW NEU
3RW55 Failsafe soft starters > Inside-delta circuit

■ Selection and ordering data

For normal starting (CLASS 10E)

3RW551. 3RW552. 3RW553. 3RW554.

At 40 °C for inside-delta circuit At 50 °C for inside-delta circuit SD1) Article No. Price PU PS* PG
Opera- Operating power for Opera- Rating [hp] for three-phase motors per PU (UNIT,
tional three-phase motors tional SET, M)
current At At current At At At
230 V 400 V 200/208 V 220/230 V 460/480 V
A kW kW A hp hp hp d
Operational voltage 200 ... 480 V

6
22.5 5.5 11 19.9 5 5 10 5 3RW5513-@HF@4 1 1 unit 42S
31.5 7.5 15 28 7.5 7.5 20 5 3RW5514-@HF@4 1 1 unit 42S
43.3 11 18.5 39 10 10 25 5 3RW5515-@HF@4 1 1 unit 42S
55.4 15 22 49 15 15 30 5 3RW5516-@HF@4 1 1 unit 42S
65.8 18.5 30 58 15 20 40 5 3RW5517-@HF@4 1 1 unit 42S
81.4 22 45 72 20 25 50 5 3RW5524-@HF@4 1 1 unit 42S
109 30 55 96 30 30 75 5 3RW5525-@HF@4 1 1 unit 42S
133 37 75 118 30 40 75 5 3RW5526-@HF@4 1 1 unit 42S
161 45 90 143 40 50 100 5 3RW5527-@HF@4 1 1 unit 42S

Type of electrical connection for the control circuit

Screw terminals 1
Spring-loaded terminals 3

Control supply voltage

24 V AC/DC 0
110 ... 250 V AC 1
1)
3RW55 soft starter with screw terminals for operational voltage up to 480 V: Note:
Standard delivery time SD = 1 day (d).
For the constraints for the motor outputs specified here, see
page 6/8.

At 40 °C for inside-delta circuit At 50 °C for inside-delta circuit SD1) Article No. Price PU PS* PG
Opera- Operating power for Opera- Rating [hp] for three-phase motors per PU (UNIT,
tional three-phase motors tional SET, M)
current At At current At At At
230 V 400 V 200/208 V 220/230 V 460/480 V
A kW kW A hp hp hp d
Operational voltage 200 ... 480 V
196 55 110 175 50 60 125 5 3RW5534-@HF@4 1 1 unit 42S
248 75 132 222 75 75 150 5 3RW5535-@HF@4 1 1 unit 42S
296 90 160 265 75 100 200 5 3RW5536-@HF@4 1 1 unit 42S
364 110 200 322 100 125 250 5 3RW5543-@HF@4 1 1 unit 42S
433 132 250 381 125 150 300 5 3RW5544-@HF@4 1 1 unit 42S
546 160 315 483 150 200 400 5 3RW5545-@HF@4 1 1 unit 42S
641 200 355 568 200 200 450 5 3RW5546-@HF@4 1 1 unit 42S
814 250 400 721 250 250 600 5 3RW5547-@HF@4 1 1 unit 42S
987 315 560 873 300 350 750 5 3RW5548-@HF@4 1 1 unit 42S

Type of electrical connection for the control circuit

Spring-loaded terminals 2
Screw terminals 6

Control supply voltage

24 V AC/DC 0
110 ... 250 V AC 1
1)
3RW55 soft starter with screw terminals for operational voltage up to 480 V: Note:
Standard delivery time SD = 1 day (d).
For the constraints for the motor outputs specified here, see
page 6/8.

* You can order this quantity or a multiple thereof.

Illustrations are approximate Siemens IC 10 · 2020 6/51
 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 Failsafe soft starters > Accessories

■ Selection and ordering data

Product Manufacturer's Type of Application SD Article No. Price PU PS* PG
designation Article No. of the product per PU (UNIT,
soft starter SET, M)
d
Fan covers
Fan cover 3RW551 (1x), -- -- } 3RW5983-0FC00 1 1 unit 42S
3RW552 (2x),
3RW553 (2x)
3RW554 (1x) -- -- } 3RW5984-0FC00 1 1 unit 42S
3RW5983-0FC00
Terminal covers
Terminal 3RW552 (2x), -- -- } 3RW5983-0TC20 1 1 unit 42S
cover 3RW553 (2x)

3RW5983-0TC20
3RW554 (2x) -- -- } 3RW5984-0TC20 1 1 unit 42S
6

3RW5984-0TC20
Enclosure components
Hinged cover 3RW55 Without -- } 3RW5950-0GL20 1 1 unit 42S
cutout

3RW5950-0GL20
Communication modules
Communica- 3RW55 PROFINET -- } 3RW5950-0CH00 1 1 unit 42S
tion module High Feature
with integral
switch
PROFINET -- } 3RW5980-0CS00 1 1 unit 42S
Standard
PROFIBUS -- } 3RW5980-0CP00 1 1 unit 42S

3RW5980-0CS00
EtherNet/IP -- } 3RW5980-0CE00 1 1 unit 42S

3RW5980-0CE00
Modbus RTU -- } 3RW5980-0CR00 1 1 unit 42S
Modbus TCP -- } 3RW5980-0CT00 1 1 unit 42S

3RW5980-0CR00

* You can order this quantity or a multiple thereof.

6/52 Siemens IC 10 · 2020 Illustrations are approximate
 © Siemens 2019

Switching Devices – Soft Starters and Solid-State Switching Devices

SIRIUS 3RW Soft Starters
High Performance Soft Starters
3RW55 Failsafe soft starters > Accessories

Product Manufacturer's Type of Application SD Article No. Price PU PS* PG

designation Article No. of the product per PU (UNIT,
soft starter SET, M)
d
HMI modules
IP65 door 3RW55 IP65 For HMI } 3RW5980-0HD00 1 1 unit 42S
mounting kit modules
for HMI
modules

3RW5980-0HD00
Connecting cables
HMI connec- 3RW55 5 m, round For door } 3RW5980-0HC60 1 1 unit 42S
tion cable 2.5 m, round mounting } 3UF7933-0BA00-0 1 1 unit 42J
1.0 m, round } 3UF7937-0BA00-0 1 1 unit 42J
0.5 m, round } 3UF7932-0BA00-0 1 1 unit 42J

6
3UF793.-0BA00-0
Further accessories
Push-in lugs -- Two lugs are For HMI 2 3ZY1311-0AA00 1 10 units 41L
for wall required per modules and
mounting device communica-
tion modules

3ZY1311-0AA00
Blank labels
Unit labeling -- 20 mm x For SIRIUS 20 3RT2900-1SB20 100 340 units 41B
plates1) 7 mm, devices
titanium gray
IC01_00181

3RT2900-1SB20
1)
PC labeling systems for individual inscription of unit labeling plates are
available from: murrplastik Systemtechnik GmbH (see page 16/15).

* You can order this quantity or a multiple thereof.

Illustrations are approximate Siemens IC 10 · 2020 6/53