Outdoor ZW20 12kv 50Hz  630 A High Cycle Life Vacuum Air Circuit Breakers operation

Outdoor ZW20 12kv 50Hz 630 A High Cycle Life Vacuum Air Circuit Breakers operation

Negotiable /Piece

Min.Order:1 Piece

Supply Ability:
0 Piece / Pieces per Month
Payment Terms:
T/T L/C D/P D/A
Delivery Detail:
7 days

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Brand Name:
Wu Yin
Place of Origin:
China
Model Number:
ZW20-12

Wu Yin Electrical Equipment Co., Ltd

Business Type: Trading Company
Main Products: Mini Circuit Breaker ,Molded Case Circuit Breakers ,Residual Current Circuit Breaker

Product Details

Delivery Time:7-15days
Certification:ISO

Outdoor ZW20 12kv 50Hz  630 A High Cycle Life Vacuum Air Circuit Breakers operation

Air Circuit Breakers Technical Parameter

No

Item

Unit

Data

1

Rated voltage

kv

12

2

Rated frequency

Hz

50

3

Rated current

A

630

4

Rated peak value withstand current

kA

50

5

Rated time withstand current/4s

kA

20

6

Rated short circuit breaking current

kA

20

7

Rated short circuit current making cycles(peak value)

times

50

8

Rated operate sequence

O-0.3s-CO-180s-O

9

Lightning impulse withstand voltage

kv

 75/85

10

Secondary circuit 1min frequency withstand voltage

V

95/80

11

Mechanical life

times

10000

12

1min power frequency withstand voltage

(wet)Phase-to-phase phase-to-earth

kv

34/35

(dry) Phase-to-phase phase-to-earth

kv

42/49

13

SF6 gas pressure

Mpa

0

Air Circuit Breakers Summary

ZW20 series circuit breaker is a new product which is inventively produced by 

 it has the features of three-phase non-segregated longitudinal magnetic field vacuum quenching of arc,  

SF6 as the insulation and the insulation of silicone rubber/solid epoxy resin.

ZW20 series circuit breaker use three-phase non-segregated structure and has the features of stable 

and reliable breaking performance,  no combustion and explosion danger,  maintenance-free,

 light weight (two-thirds of similar products ),  high cycle life (mechanical operating life is 10000 times) and so on. 

New designed spring operating mechanism is exposed in SF6 to effectively avoid traditional spring operation 

mechanism’s 

design defects,  such as stagnation and rustiness,  making a significant improvement in reliability.

Air Circuit Breakers Scope of Application

ZW20 series circuit breaker is mainly used to break and close load current,  overload current and short-circuit current in the electric power system. It is used to protect and control the power distribution system in transformer 

substation,  industrial and mining enterprises,  and it is especially suitable for the transformation of the power 

network in rural and city. This circuit breaker can be used with FTU/dividing switch controller,  so as to automatically detect,

 isolate and alarm the faults in ma

Contact Supplier

Mr. Du sale Manager Chat Now
Telephone
86-755-23154925
Mobile
86-13054698745
Fax
86-755-68020912
Skype
melodychenbd
Address
First Plant Suwu Industrial Park Shangluo,Shaanxi

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