DC

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DC Circuit switching contactors contatchinguit
ct
Up to 2050A, 1000V DC or
s
1
Type GA/E, GAF, AF

Contactors

Description
The new GAF range contactors are the latest addition to ABB’s well established A/AF range. This
DC Circuit switching

further extends our offering of contactors for DC switching at voltages up to 1000 V DC. The
GAF contactors utilize all the well known features of the existing A/AF range such as modern and
compact design. In addition all the benefits from the AF coil technology and reliability of a proven
contactor design. These contactors are rated for DC-1 or DC general purpose applications accord-
ing to IEC 1000V DC or cULus 600V DC. The new GAF contactors share the external dimensions of
its corresponding standard AF contactor.

Applications Type AF / GAF

• Solar / Photovoltaic power • DC general use up to 600V, 1900A

• Traction / rolling-stock • DC-1 up to 1000V DC, 2050A

• Power distribution • Electronic AC/ DC coil input voltages

• Switchgear • PLC interface (GAF460…GAF2050)

• Battery systems • Series busbar kits available

• Telecom • Permanent magnets for high DC breaking

Type GA / GAE • GAF185…GAF300 cULus Listed – File #

E73397
• DC general use up to 1000V DC, 35A
– Switches, Industrial Control (NRNT, NRNT7)
• AC or DC input voltages
• GAF460…GAF2050 IEC/EN only
• Pre-wired 3-poles-in-series
• AF145…AF2650 cULus Listed – File #
• Permanent magnets for high DC breaking E73397
• cULus Listed – File # E319322 – Switches, Industrial Control (NRNT, NRNT7)
– Switches, Industrial Control (NRNT, NRNT7)

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DC itch tor GA75 - GAE75
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Electrical ratings
UL/CSA IEC / EN Standard auxiliary
DC general use (A) DC-1, θ≤40° (A) contacts Catalog
number
440V 600V 1000V 440V 600V 1000V N.O. N.C.
100 75 35 100 75 35 – – GA75-10-00-Δ
100 75 35 100 75 35 1 1 GAE75-10-11-Δ
Rated insulation voltage Ui = 1000V d.c. according to IEC 947-4-1.
Maximum switching frequencies: 300 operating cycles/

Additional IEC/EN electrical

ratings for GA/E75
Rated
Utilization Maximum
operational
category voltage
current le (A)

A1 A2
DC-3 440V 85
1L1 + 220V 85
DC-5
13X 440V 35
21X

Coil voltage selection chart (∆)

22X

14X
Hz Cntr Volts
2T1 –
type 12 24 48 110 120 125 208 220 240 277 380 415 440 480 500 600
60 GA 81 83 84 84 34 75 80 42 48 86 86 51 53 55
13X 21X 1L1 + 50 GA 81 83 84 80 85 86 55
A1 DC GAE 80 81 83 86 87 88 89
For other voltages, see page 1.35.

Accessories
A2
14X 22X 2T1 – Standard A and AE 40 - 75 contactor accessories are suitable for GA75 and GAE75 contactors.
Coils are the standard coils for A and AE50 - 75 contactors.
GA75-10-00-84
Contacts cannot be changed.

Wiring diagrams
In D.C. circuits, the source to earth (or frame) connection mode is an important element.
Three modes are mainly used:
A – insulated source, i.e. unearthed (or not connected to the frame).
B – source earthed via its central point.
C – source earthed via one of its outer poles.
Modes A and B do not impose any constraints with regard to the distribution of the contactor poles between the two source/load
connecting branches. Mode C requirements are therefore suitable for modes A and B.
For mode C, all the poles necessary for breaking must be installed in series between the load and the ungrounded source polar-
ity.We recommend this solution for all connection modes.
The above provisions relate to power circuit switching, the SCPD (Short-Circuit Protection Device) must comply with protection
rules.

+ 1L1 – 2T1

+ +
{

SCPD
SCPD

GA 75 / GAE 75
Load
Load

GA 75 / GAE 75
{

– –
A1 A2
– 2T1 + 1L1
1L1 +
35X
13X
C
21X
D
L
22X

14X 5
36X
2T1 –
A3

13X 21X 35X 1L1 +

A1

A2 A3
36X
14X 22X 2T1 –
GAE75-10-00-84

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 DC
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GAF185 - GAF2050 nt t
ac ing
to 1
DC circuit switching GAF & AF rs

3 contacts in series
GAF - 1000 V DC max. (IEC)
Catalog Reference Pkg Weight
L/R 1 ms, air temperature close to contactor
number code qty (1 pce) kg

40 °C 55 °C 60 °C 65 °C 70 °C
A
275 250 230 205 180 GAF185-10-11-Δ 1SFL497025RΔ11 3.60
GAF185 500 400 375 350 325 GAF300-10-11-Δ 1SFL557025RΔ11 6.20
AF145, AF185 700 600 560 520 480 GAF460-10-11-Δ 1SFL597025RΔ11 12.00
1050 875 800 760 720 GAF750-10-11-Δ 1SFL637025RΔ11 15.00
1250 1040 970 920 875 GAF1250-10-11-Δ 1SFL647025RΔ11 16.00
1650 1450 1380 1325 1270 GAF1650-10-11-Δ 1SFL677025RΔ11 35.00
2050 1750 1650 1575 1500 GAF2050-10-11-Δ 1SFL707025RΔ11 35.00

GAF & AF - 600 V DC max. (UL/CSA) & 850...1000 V DC max. (IEC)

UL/CSA general use, 40 °C IEC DC-1, 40 °C

GAF300 A A
AF210 ... AF300 250 250 GAF185-10-11-Δ 1SFL497025RΔ11 3.60
400 500 GAF300-10-11-Δ 1SFL557025RΔ11 6.20
AF145-30-11-Δ 1SFL477001RΔ11 3.60
AF185-30-11-Δ 1SFL497001RΔ11 3.60
Use GAF185 - GAF300 AF210-30-11-Δ 1SFL517001RΔ11 6.20
AF260-30-11-Δ 1SFL537001RΔ11 6.20
AF300-30-11-Δ 1SFL597001RΔ11 6.20
550 See next page for AF400-30-11-Δ 1SFL637001RΔ11 12.00
GAF460 650 IEC data at various AF460-30-11-Δ 1SFL597001RΔ11 12.00
AF400, AF460
750 voltages. AF580-30-11-Δ 1SFL617001RΔ11 15.00
900 AF750-30-11-Δ 1SFL637001RΔ11 15.00
1210 AF1250-30-11-Δ 1SFL647001RΔ11 16.00
– AF1350-30-11-Δ 1SFL657001RΔ11 34.00
1350 AF1650-30-11-Δ 1SFL677001RΔ11 35.00
1900 AF2050-30-11-Δ 1SFL707001RΔ11 35.00

Connection bar for contactor 1

GAF750, GAF1250
GAF185, AF145, AF185 LP185 1SFN074712R1000 2 0.30
AF580 ... AF1250
GAF300, AF210 ... AF300 LP300 1SFN075112R1000 2 0.40
GAF460, AF400, AF460 LP460 1SFN075712R1000 4 0.55
GAF750, AF580, AF750 LP750 1SFN076112R1000 4 0.95
GAF1250, AF1250 LP1250 1SFN076412R1000 2 1.90
GAF1650, GAF2050, AF1350, AF1650, AF2050 LP2050 1SFN076512R1000 4 2.90
1 Not included with the contactor; connection diagrams must be respected

Auxiliary contact blocks, low energy microswitch 0.1 A, N.O or N.C.

GAF1650, GAF 2050 AF145...AF2050 N.C. CEL18-01 1SFN010716R1001 0.05
AF1350 ... AF2050 GAF185...GAF2050
N.O. CEL18-10 1SFN010716R1010 0.05

AC / DC coils with electronic coil interface

Contactors GAF185 ... GAF300, AF145 ... AF300 Contactors GAF460 ... GAF1250, AF400 ... AF1250
Voltage Voltage Code Voltage Voltage Code
V - 50/60Hz V - DC Δ Δ V - 50/60Hz V - DC Δ Δ
LP185
— 20 ... 60 7 2 — 24 ... 60 6 8
48 ... 130 48 ... 130 6 9 48 ... 130 48 ... 130 6 9
100...250 100 ... 250 7 0 100 ... 250 100 ... 250 7 0
250 ... 500 250 ... 500 7 1
Contactors GAF1650, GAF2050,
LP2050 AF1350, AF1650, AF2050
100 ... 250 100 ... 250 7 0

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DC itch tor Technical data
1 sw ntac
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IEC
AF145 AF185 AF210 AF260 AF300 AF400 AF460 AF580 AF750 AF1250 AF1350 AF1650 AF2050

Utilization category DC-1 A A A A A A A A A A A A A

Contacts
in series L/R 1 ms
1 contact 110 V 600 700 800 1050
2 contacts 110 V 250 275 350 400 450 600 700 800 1050
3 contacts 220 V 250 275 350 400 450 600 700 800 1050 1250 1350 1650 2050
3 contacts 600 V 600 700 800 1050 1250 1350 1650 2050
3 contacts 850 V 800 1050 1250 1350 1650 2050
Conductor
cross-sectional
area mm2 120 150 185 240 3001) 2x185 2x240 2 x 50x82) 10003) 2 x 100x52) 3 x 100x52) 4 x 100x52)

Utilization category DC-3

Contacts
in series L/R 2.5 ms
1 contact 110 V 600 700 800 1050
2 contacts 110 V 250 275 350 400 450 600 700 800 1050
3 contacts 220 V 250 275 350 400 450 600 700 800 1050
3 contacts 600 V 600 700 800 1050
Conductor
cross-sectional
area mm2 120 150 185 240 3001) 2x185 2x240 2 x 50x82) 10003 2 x 100x52) 3 x 100x52) 4 x 100x52)

Utilization category DC-5

Contacts
in series L/R 15 ms
1 contact 110 V 600 700 800 1050
2 contacts 110 V 250 275 350 400 450 600 700 800 1050
3 contacts 220 V 250 275 350 400 450 600 700 800 1050
3 contacts 600 V 600 700 800 1050
Conductor
cross-sectional
area mm2 120 150 185 240 3001) 2x185 2x240 2 x 50x82) 10003 2 x 100x52) 3 x 100x52) 4 x 100x52)
1)
For currents above 450 A use 300 mm and terminal extension / enlargement pieces ( LW300: see ABB website Low voltage section or local ABB catalog)
2

2)
Dimension of the bars (mm)
3)
Max connection bar width 50 mm

cULus
AF145 AF185 AF210 AF260 AF300 AF400 AF460 AF580 AF750 AF1250 AF1350 AF1650 AF2050
Intended device application general purpose
Contacts
in series
3 contacts 240 V 250 550 650 750 900 1210 1350 1900
3 contacts 600 V 550 650 750 900 1210 1350 1900

General
• When selecting a contactor for DC switching it is essential to determine the current, the voltage and the L/R time constant
of the controlled load.
• The loads are defined by the time constant L/R: non inductive loads such as resistance furnaces (L/R ≈ 1 ms), inductive loads
such as shunt motors (L/R ≈ 2 ms) or series motors (L/R ≈ 7.5 ms).
• In addition to the block contactors shown in this document:
1) ABB also offers bar mounted contactors (R-series). Bar contactors can typically be used for higher amps and voltages or
other configurations or number of main poles (contacts).

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 Technical data
DC contactors GAF and AF 1

Main technical data

IEC60947-4-1
Contactor type GAF GAF185 GAF300 GAF460 GAF750 GAF1250 GAF1650 GAF2050
Rated operational voltage Ue max V DC 1000
IEC 60947-4-1, DC-1, θ ≤ 40 °C A 275 500 700 1050 1250 1650 2050
Conductor cross-sectional area mm2 150 3001) 2x240 2 x 50x82) 10003) 3 x 100x52) 4 x 100x52)
1)
For currents above 450 A use 300 mm2 and terminal extension / enlargement pieces ( LW300: see ABB website Low voltage section or local ABB catalog)
2)
Dimension of the bars (mm)
3)
Max connection bar width 50 mm

cULus
Contactor type GAF GAF185 GAF300
Rated operational voltage Ue max V DC 600
Amp-ratings general purpose A 250 400

General technical data

GAF185 GAF300 GAF460 GAF750 GAF1250 GAF1650 GAF2050
AF145 AF185 AF210 AF260 AF300 AF400 AF460 AF580 AF750 AF1250 AF1350 AF2050
Contactor type AF1650
Rated making capacity DC-1
1.5 x Ie acc. to IEC60947-4-1
Rated breaking capacity DC-1
Rated frequency limits Hz 25 ... 400
Short-circuit protection
for contactors without thermal O/L relay - On request or see ABB website Low voltage section or local ABB catalog
Motor protection excluded
Rated short-time withstand current, I cw On request or see ABB website Low voltage section or local ABB catalog
Heat dissipation per pole I e /DC-1 W 13 16 18 25 32 30 42 32 50 80 80 125
Rated impulse withstand voltage, U imp kV 8
Ambient temperature close to contactor see ”Conditions for use”, for control voltage limits and authorized mounting
- during operation / storage °C -40 to +70
Operating altitude m ≤3000 without derating

Magnet system characteristics

Rated control circuit voltage Uc
- at 50 Hz and 60 Hz V 48 ... 250 48 ... 500 100 ... 250
- d.c. V 20 ... 250 24 ... 500 100 ... 250
Coil operating limits 0.85 x U c min. ... 1.1 x Uc max. (at θ≤ 70 °C)
acc. IEC60947-4-1 Please also refer to ”Mounting characteristics”
Drop-out voltage
in % of Uc min. % 55
Coil consumption
Average pull-in value 50 Hz and 60 Hz VA 430 470 890 850 850 1900
d.c. W 500 520 990 950 950 1700
Average holding value 50 Hz and 60 Hz VA/W 12/3.5 10/2.5 12/4 12/4.5 12/4 48/17
d.c. W 2 2 4 4.5 4 16
Operating time coil supply between A1-A2 On request or see ABB website Low voltage section or local ABB catalog

Mounting characteristics
Mounting positions - mounting on a vertical plane: any position with a tilt up to ± 30°
- mounting on a horizontal plane: any position with a tilt up to ± 30°, except up-side down
Fixing
- by screws (not supplied) 4 x M5 4 x M6 4 x M8

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DC itch tor Connections
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Recommended connection
All three contacts connected in series without the load in between. This connection is recommended in systems according to
the configurations below.

+ -

Load

Load

Load
Indirect earthed system Direct earthed system Centre earthed system
Load (Isolated system)

Alternative connection
The load is placed in between the three contacts in an indirect earhted system or in a fully isolated system. If not connected ac-
cording to the configuration below, a fault to earth could result in one or two contacts breaking the full load which the contactor
is not approved for.

Load
+
Load

- Indirect earthed system

(Isolated system)

The above relates to power circuit switching. The SCPD (Short Circuit Protection Device) must comply with applicable
protection rules.
• The direction of the current must be as shown on the contactor front label.
• Connection bars for connecting three contacts in series are not delivered with the contactor as standard, but are
available as accessories.

For further information regarding connections see Technical paper.

+
GAF2050-10
Ith=2050A Ui = 1000V DC
Ie DC-1 = 2050A Ue = 1000V DC

IEC 60947-4-1
EN 60947-4-1
1G1129

All 3 poles must be

connected in series

Device equipped with

permmanent magnets

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Approximate dimensions (mm) ac ing
to 1
rs

GA75
108
72

35 mm x15 EN 50022
6 6.5 (M6)

11

5
110

90
4

75 mm EN 50023

5
11

10 10 5 60 5
70
72

GAE75

108
72
35 mm x15 EN 50022

6 6.5
(M6)

5
11

90
110

75 mm EN 50023

10 10 5 60 5
11

72
82

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 uit
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DC itch tor
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12 111.5 12 140
105 17.5 180.5
160 10.2
17.5 ø 8.5 35.5 5
35.5 5

14
10
187

219
196

227
35
43.75

GAF185 GAF300
AF145, AF185 AF210 ... AF300

186 210
216 242
25 22.5 ø6.5 ø10.5 40 22.5 ø6.5 ø12.5

11.5
11.5

48.5 6 48.5 6
268

273
278

283
63
72

GAF460 GAF750
AF400, AF460 AF580, AF750

50
136 136
27 72 O7
3
242

392 312

344 249

80 136 9
47 10
48,5 8 104
72 72
244
O13 210
438

GAF1650, GAF2050
GAF1250, AF1350, AF1650, AF2050
AF1250 Dimensions in mm
Inch converter: 1 mm = 0.0394 in

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