Home > Electrical Equipment & Supplies > Circuit Breakers > rated short-circuit breaking current(a) 20 zw20 12 kv 3 phase vacuum circuit breaker good quality low price made in china


Product Name:

rated short-circuit breaking current(a) 20 zw20 12 kv 3 phase vacuum circuit breaker good quality low price made in china

Packaging Details:inner bag, then in wooden carton.
Delivery Detail:1-3weeks

rated short-circuit breaking current(a) 20 zw20 12 kv 3 phase vacuum circuit breaker good quality low price made in china rated short-circuit breaking current(a) 20 zw20 12 kv 3 phase vacuum circuit breaker good quality low price made in china

      

Quick Details

  • Place of Origin: Zhejiang
  • Brand Name: ST
  • Model Number: ZW20-12/630/20
  • Type: Vacuum
  • Poles Number: 3
  • Voltage(KV): 12
  • Frequency(HZ): 50
  • Rated current(A): 630
  • Rated short-circuit breaking current(A):...



Detailed Product Description:
zw20 Description

Zw20 12 kv 3 phase vacuum circuit breaker good quality low price made in china

General Description

    • Rated voltage: 12kV
    • Rated frequency: 50Hz
    • Rated current: 630A, 1250A
    • Rated short-circuit breaking current: 12.5, 16, 20 and 25kA
    • Rated short-circuit making current (peak): 31.5, 40, 50 and 63kA
    • Rated short-time (4s) with stand current: 12.5, 16, 20 and 25kA
    • Rated ultimate with stand current: 31.5, 40, 50 and 63kA
    • Mechanism life: 10,000 times
    • On-off times of rated current: 10,000 times
    • On-off times of rated short-circuit making current: 30 times 
  • Rated Insulating Level: 
    • Power frequency withstand voltage (dry): 42kV 
    • Thunder and lightning shock with stand voltage (peak): 75kV

Technical Data

ItemUnitsParameters
Rated voltagekV12
Rated frequencyHz50
Rated currentA630, 1250
Rated short-circuit break currentkA12.5, 16, 20, 25
Rated peak withstand currentkA31.5, 40, 50, 63
Rated short-tome withstand currentkA12.5, 16, 20, 25
Rated short circuit making current (peak value)kA31.5, 40, 50, 63
Mechanical lifetimes10,000
Breaking times of rated currenttimes10,000
Breaking times of rated short-circuit breaking currenttimes30
1 min PF withstand voltage: interphase, to earth/fracturekV42
Lightening impulse withstand voltage (peak): interphase, relative/broken circuitkV75
Secondary loop 1min power frequency tolerancekV2
Net weightkg140

rated short-circuit breaking current(a) 20 zw20 12 kv 3 phase vacuum circuit breaker good quality low price made in chinarated short-circuit breaking current(a) 20 zw20 12 kv 3 phase vacuum circuit breaker good quality low price made in china 

Company Information

rated short-circuit breaking current(a) 20 zw20 12 kv 3 phase vacuum circuit breaker good quality low price made in china 

Certifications

rated short-circuit breaking current(a) 20 zw20 12 kv 3 phase vacuum circuit breaker good quality low price made in china 

Our Services

1.OEM is available.

2.Your inquiry related to our product & price will be replied within 24 hours

3.Well-trained & experienced staff are to answer all your inquiries in English

4.Working time: 8:00am ~17:45pm, Monday to Saturday. (UTC+8)

5.Customized solution & perfect after-sale service

6. Payment: we can accept T/T, L/C, Western Union.

7. For large order, engineer can be sent to your country for on-site mainternace instructions.

 

Packaging&Shipping

 Packaging Details: One unit per wooden case

 Delivery Detail: 15-20 work days after the whole payment

rated short-circuit breaking current(a) 20 zw20 12 kv 3 phase vacuum circuit breaker good quality low price made in china 

Contact information

rated short-circuit breaking current(a) 20 zw20 12 kv 3 phase vacuum circuit breaker good quality low price made in china 


Supplier Details

  • Zhejiang ST Transformer Co., Ltd.
  • [ Zhejiang, China (Mainland) ]
  • Business Type:
  • Manufacturer, Trading Company
  • Year Established: 2006
  • Number of Employees:
  • 101 - 200 People
  • Telephone/FAX:
  • 0086-577-6167,0086-577-6167

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