Accessories & Features

CZ Switch disconnector

Highlights
• Wide range of current 125A to 630A gives flexibility in designing ACCB with
multiple number of incomers for 800V a.c. application
• Wide range of current 125A to 630A gives flexibility in designing SMB with multiple
number of incomers for 1000V - 1500V d.c. application
• For CZ1 maximum Al cable cross section termination capacity for 50oC is 185 sqmm upto 250A
and 240 sqmm for 315A
• For CZ2 maximum Al cable cross section termination capacity is 2x300 sqmm

Key Feature
• Range: FGS range - 63A, 800V a.c.
CZ1 range - 125A to 315A ,800V a.c.
CZ2 range - 315A to 630A ,800V a.c.
CZ1 range - 125A to 315A ,1500V d.c.
CZ2 range - 315A to 630A ,1500V d.c.
• Variants : Extended handle and direct handle versions
• Conforms to IEC 60947-3
• RoHS compliant

Key Feature
• Operating Shaft
• Phase Barriers
• Terminals Shrouds
• Direct handle kit
• Shorting Link PV DC
• Extended handle kit

33
MountingSpecification
Technical

AC Switch Disconnector
Frame Size Unit FGS CZ 1 CZ 2

Current Range In A 63 125 160 200 250 315 315 400 630
Rated Operational
Ue V a.c. 800
Voltage
Short circuit making kA
Icm - 30 45 45
capacity (peak)
Rated Breaking
Capacity (AC 22A at kA 1 1 1.3 1.6 2 2.5 2.5 3.2 3
800Vac)

Rated short 8 kA upto 250 A 16 kA for 400 A

1 kA
time withstand Icw 2.5
sec (rms) 10 kA for 315 A 20 kA for 630 A
capacity
Impulse Withstand
Uimp kV 10 12
Voltage
Rated Insulation 1250
Ui V 1000
Voltage
Mechanical life cycles 10000 20000 20000
Electrical life cycles - 2000 2000
Utilzation category AC21B AC-22A

Operating Frequency Hz 50 50/60

No. of poles 3P

DC Switch Disconnector

Frame Size Unit FGS CZ 1 CZ 2

40,63A (@1000V
Current Range In A DC)& 32,40A 125 160 200 250 315 315 400 630
(@1500V DC)
Rated Operational
Ue V d.c. 1500 1000, 1500
Voltage
Short circuit making
Icm kA (rms) - 30 45
capacity
16 kA for 400
Rated short 8 kA upto 250 A A
1
time withstand Icw kA (peak) 1(@1000V d.c.)
sec 10 kA for 315 A 20 kA for 630
capacity
A
Impulse Withstand
Uimp kV 8 12
Voltage
Rated Insulation Voltage Ui V 1500 1500

Mechanical life cycles 30000 20000 20000

Electrical life cycles - 2000 2000

Utilzation category DC-21B DC-21B
No. of poles 4 2P/3P
All Dimensions in mm

34
Dimensions and Mounting

CZ1 AC SD 125/160/200/250/315A
MINIMUM : 140
MAXIMUM : 322
MINIMUM : 120
E 139.4 104 MAXIMUM : 302

C 42.5 3 42.5
D (Mounting) 3
10 10

300 With Accessories

10
146 (Mounting)

B
A

PANEL DOOR

4 no. of mounting hole

suitable for M6 hardware
49 Termination Hole
DIRECT HANDLE VERSION EXTENDED HANDLE VERSION

No. of Hardware suitable

Rating (A) A B C D E
poles for termination
2P 137 161 25 69 144
125-250 3P 137 161 25 118 193 M10
4P 137 161 25 138 242
2P 150 180 35 69 144
315 3P 150 180 35 118 193 M12
4P 150 180 35 138 242

320
99

180
8

35
Technical Specification
Dimensions and Mounting

CZ1 AC SD 125/160/200/250/315A

Panel Cutout
A
B

4 Holes,Ø4

73

No. of
SD Mounting Holes A B
Poles

2P 69 0

3P 118 0

4P 139 69

Mounting Orientation
180°
90° 90°

Reference

Termination Capacity

125/160/200/250A 315A

Termination Capacity Cable with Lug 1X185mm2 1X240mm2

as per Standard Busbar 1X35mmx10mm 1X35mmx10mm
Maximum Cable with Lug 2X185mm2 2X240mm2
Termination
Capacity Busbar* 2X35mmx10mm 2X35mmx10mm

Max. 20 N-m at Max. 20 N-m at

Tightening Torque
termination termination

Note: For Aluminum cable, Tin plated lugs are recommended.

Termination bolt head should be on bottom side as shown in figures
* : Higher length (M10 X 40 for 250A; M12 X 40 for 315A) of termination bolt required to connect 2 busbar of 10mm .

36
Accessories & Features

CZ1 AC SD 125/160/200/250/315A

Phase Barrier

Terminal Shroud

Direct Handle Padlock

ON ON
I I

O O
OF OF
F F

Use locks as recommended

Flip the locking tag as shown Ø5.....Ø7mm. (Max 3 Nos.)

Note : It is recommended to use Phase barrier and Terminal shrouds

37
Accessories & Features

CZ1 AC SD 125/160/200/250/315A

Handle Feature - Interlock Defeat in on State

(For extended handle only)

Handle Feature - Interlock (For extended han(-

For extended handle only)

Shaft Locking

38
Dimensions and Mounting

CZ2 AC SD 315/400/630

Shaft Locking
Arrangement

1. Unscrew shaft locking 2. Adjust/Cut the shaft as per 3. Tighten the Nut-Bolts.
arrangement and insert panel requirement.(Min. (T ighten Torque : 1.6 N-m)
Ensure that shaft pin is
CAUTION vertical for any mounting shaft as per required length. Engagement Length, X=60mm
orientation of the switch Inside Mechanism)

No. of
Rating(A) A B C D E F
poles

2P 181 206 32 90 186 4

3P 181 206 32 155 251 4

315/400
4P (side) 181 206 32 220 316 4

4P (center) 181 206 32 180 316 4

2P 184 222 45 90 186 5

3P 184 222 45 155 251 5

630
4P (side) 184 222 45 220 316 5

4P (center) 184 222 45 180 316 5

Encloure Size and Mounting

39
Technical Specification
Dimensions and Mounting

CZ2 AC SD 315/400/630

Panel Cutout

No. of
A B
Poles

2P 90 0

3P 155 0

4P - SIDE 220 0

4P - CEN-
180 90
TER

Mounting Orientation

Termination Capacity

315/400A 630A

Termination Capacity as Cable with Lug 1X300mm2 2X240mm2

per Standard Busbar 2X30mmx8mm 2X40mmx8mm
Maximum Cable with Lug 2X300mm 2
2X300mm2
Termination
Capacity Busbar 2X50mmx12mm 2X50mmx12mm

Max. 27 N-m at Max. 27 N-m at

Tightening Torque
termination termination

Note: For Aluminum cable, Tin plated lugs are recommended.Termination bolt head should be on bottom side as shown in figures
* : Higher length (M10 X 40 for 250A; M12 X 40 for 315A) of termination bolt required to connect 2 busbar of 10mm .

40
Dimensions and Mounting

CZ1 DC SD 125/160/200/250/315A

Overall and Mounting Dimension

Rat- No. of Hardware suitable

A B C D E
ing(A) poles for termination

2P 137 161 25 69 144

125-250 3P 137 161 25 118 193 M10

4P 137 161 25 138 242

2P 150 180 35 69 144

315
3P 150 180 35 118 193 M12

4P 150 180 35 138 142

41
Technical Specification
Dimensions and Mounting

CZ1 DC SD 125/160/200/250/315A

Termination Capacity

125/160/200/250A 315A

Termination Capacity Cable with Lug 1X185mm2 1X240mm2

as per Standard Busbar 1X30mmx10mm 1X35mmx10mm
Maximum Cable with Lug 2X185mm 2
2X240mm2
Termination
Capacity Busbar* 2X30mmx10mm 2X35mmx10mm

Max. 20 N-m at Max. 20 N-m at

Tightening Torque
termination termination

Note: For Aluminum cable, Tin plated lugs are recommended.Termination bolt head should be on bottom side as shown in figures
* : Higher length (M10 X 40 for 250A; M12 X 40 for 315A) of termination bolt required to connect 2 busbar of 10mm .

42
Accessories & Features

CZ1 DC SD 125/160/200/250/315A

Phase Barrier Terminal Shroud

Handle Feature - Padlock (For direct and extended handle)

Handle Feature - Interlock Defeat in on State (For extended handle only)

43
Technical Specification
Dimensions and Mounting

CZ2 DC SD 315/400/630

No. of
Rating(A) A B C D E F D
poles

2P 181 206 32 90 186 231 4

315/400
3P 181 206 32 155 251 255 4

2P 184 222 45 90 186 278 5

630
3P 184 222 45 155 251 333 5

44
Dimensions and Mounting

CZ2 DC SD 315/400/630

Mounting Orientation

Terminal Capacity

315/400A 630A

Termination Capacity Cable with Lug 1X300mm2 2X240mm2

as per Standard Busbar 2X30mmx8mm 2X40mmx8mm
Maximum Cable with Lug 2X300mm2 2X300mm2
Termination
Capacity Busbar 2X50mmx12mm 2X50mmx12mm

Max. 27 N-m at Max. 27 N-m at

Tightening Torque
termination termination

45
 Dimensions and mounting

Technical Specification
Accessories & Features

CZ2 DC SD 315/400/630

Phase Barrier Terminal Shroud

Direct Handle Padlock

Circuit Diagrams

46