ZN12 VCB

ZN12 VCB is 12kv vacuum circuit breaker for indoor, and Rated voltage 12KV, Rated current 630/1250/1600A, and short-circuit breaking current are the main parameters of this type vacuum circuit breaker.

ZN12 VCB Description:
12kv vacuum circuit breaker for indoor
Rated voltage 12KV
Rated current 630/1250/1600A
Short-circuit breaking current

ZN12 VCB

ZN12 VCB Technical data:

No.
Item
Unit
Value
1
Rated voltage 
KV
12
2
Rated lighting impulse withstand voltage
KV
Inter phase or to ground 75, fructure 80
3
Rated short-time power frequency withstand voltage
KV
Inter phase or to ground 42, fructure 48
4
Rated short-circuit breaking current
KA
20,25
31.5
40
5
Rated current        
A
630/1250/1600
/2000/2500/3150
6
Rated thermo stability current(valid)
KA
25
31.5
40
7
Rated dynamic stability current(peak) 
KA
63
80
100
8
Rated short-circuit making current(peak)                           
KA
63
80
100
9
Rated operations of short-circuit breaking current
Times
50(40kA is 30)
10
Rated working current of over current and tripping coil
A
5
11
Rated operating sequence                        
 
0-0.3s-CO-180s -CO
12
Rated current of auxiliarate switch                                   
A
AC10,DC5
 
13
Rated voltage of energy saving release
V
AC.DC220   AC.DC110
14
Closing time                             
Times
≤75
15
Opening time
 
≤60(40)
16
Power of energy saving motor
W
275
17
Energy saving time
S
 
≤15
18
Mechanical life
Times
20000


Relative Articles:
◆Composite polymer insulators
◆Technical terms of power insulators
◆High voltage transformer bushings
◆Hydrophobicity classification in high voltage polymeric insulators
◆Disconnector

©2014 Zhengzhou Orient Powe Co., Ltd All rights reserved.  sales@orientinsulators.com
Orient Group is a professional manufacturer and exporter of composite suspension insulator and porcelain disc suspension insulator.