DW17(ME)Universal Circuit Breaker
ZW8-12-630-20
ZW8-12
ZW1-12
Application
ZW8-12 Series vacuum breaker is three-phase AC 50Hz high voltage indoor switchgear with rated voltage 12kV. It is mainly used to make and break load current, overload current and short-circuit current of mini power system. The whole structure of the products are three phases in one cabinet, and three-phase vacuum arc-chutes were placed in metal cabinet. The operating mechanism of the products is CT23 type spring energy storing mechanism, which can be classified to electrical type and manual type.
Specifications
Order
Items
Unit
6.3kA
12.5kA
20kA
1
Rated voltage
kV
12
2
High operating voltage
kV
12
3
Rated current
A
630
4
Rated short-circuit make and break current
kA
6.3
12.5
20
5
Rated short-circuit open-close current(peak)
kA
16
31.5
50
6
Rated peak endurable current
kA
16
31.5
50
7
Industrial endurable voltage
kV
42
8
Impulse endurable voltage
kV
75
9
Mechanical life
Times
10000
10
Average opening speed
m/s
0.8-1.4
11
Average closing speed
m/s
0.5-0.9
12
Closing time
S
0.1
13
Every phase resistance of main circuit
200
°

  
Electrical Components Direct
7 Chelsea View, Bradford Road, Northowram, Halifax, West Yorkshire, HX3 7AJ Tel 07713451823 Fax 01422 202438
E_mail sales@electricalcomponentsdirect.co.uk

Copyright © Electrical Components Direct