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Product Name:

rated voltage(kv) 40.5 vacuum interrupter

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

rated voltage(kv) 40.5 vacuum interrupter rated voltage(kv) 40.5 vacuum interrupter

Quick Details

  • Place of Origin: Zhejiang
  • Brand Name: ST
  • Model Number: ZN85-40.5
  • Type: Vacuum
  • Poles Number: 3
  • Rated voltage(KV): 40.5
  • 1min. PF withstand voltage(KV): 9...
  • Lightning impulse withstand voltage(KV):...
  • Rated current(A): 630,1250,16...

Detailed Product Description:
ZN85 Description

Vacuum interrupter for indoor vacuum circuit breaker zn85 33kv 35kv 40.5kv 1600-2000a 31.5-40.5ka

General Description

  • ZN85-40.5 indoor high voltage vacuum circuit breaker, is the indoor switch gear for the 3-phase AC 50Hz, rated voltage 40.5kV electrical system
  • It is for the mining industry, power plants and substations as division and load current, overload current, fault current purposes, and for frequent operation places.
  • Breaker operating mechanism up and down arrangement, effectively reducing the depth of the circuit breaker. Mechanism design is simple, and its performance is more suitable output curve 40.5 kV vacuum breaker characteristics and requirements.
  • The overall layout is reasonable, beautiful, simple, compact, flexible operation, with reliable electrical performance, long life, easy maintenance, body maintenance-free features.
    • Model Description
      ZN--------Indoor vacuum circuit breaker
      85--------Design No.
      40.5------Rated voltage(kV)
      X1--------Rated current(A)
      X2--------Rated short-circuit breaking current

Technical Data


1Rated voltagekV40.5
21 min power frequency withstand voltagekV95
3Lightning impulse withstand voltagekV185
4Rated frequencyHz50
5Rated currentA1250,1600,2000
6Rated short time withstand currentkA25,31.5
7Rated peak withstand currentkA63,80
8Rated short duration currents4
9Rated short-circuit breaking currentkA25,31.5
10Rated short-citcuit closing currentkA63,80
11Rated sequence of operations 0-0.3s-CO-180S-CO
12Rated short-circuit breaking current breaking timetime20
13Single capacitor bank breaking currentA630
14Back to back capacitor bank breaking currentA400
15Rated operating voltageV-100/~110, -220/~220
16Mechanical lifetime1000




rated voltage(kv) 40.5 vacuum interrupter 


Company Information

rated voltage(kv) 40.5 vacuum interrupter 


rated voltage(kv) 40.5 vacuum interrupter 

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 Details: One unit per wooden case

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

rated voltage(kv) 40.5 vacuum interrupter 

Contact information

rated voltage(kv) 40.5 vacuum interrupter 


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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