Gold Member Since 2015
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Mingde Electrical (Shanghai) Co., Ltd.

Circuit Breaker, Breaker, Vacuum Circuit Breaker manufacturer / supplier in China, offering Outdoor Circuit Breaker Zw20, 17.5kv -2500A Vmd Indoor Three Phase Vcb in Switchgear, Contact Box Md/150 and so on.

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Outdoor Circuit Breaker Zw20

Purchase Qty.:
1-99 100+
FOB Unit Price: US $220 US $200
Purchase Qty. (Pieces) FOB Unit Price
1-99 US $220
100+ US $200
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Production Capacity: 22000PCS/Year Circuit Breaker
Transport Package: Wooden Case Packing Circuit Breaker
Payment Terms: L/C, T/T, Western Union, Paypal

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Product of Outdoor Vacuum Circuit Breaker
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Basic Info
  • Model NO.: 12kV Mingde Outdoor Circuit Breaker
  • Operation: Electric & Manual Circuit Breaker
  • Arc-extinguishing Medium: Vacuum
  • Structure: High and Medium Voltage Circuit Breaker
  • Type: Circuit Breaker
  • Certification: ISO9001-2000, CE
  • Rated Frequency: 50Hz Circuit Breaker
  • Mechanical Life: 10000 Times Circuit Breaker
  • Rated Short Circuit Breaking Times: 30 Times Circuit Breaker
  • Specification: CE, ISO9001 Circuit Breaker
  • HS Code: 8535210000
  • Breaking Capacity: Middle& High Voltage Circuit Breaker
  • Speed: Normal Type Circuit Breaker
  • Installation: Fixed
  • Poles Number: 3
  • Function: Overcurrent Protection
  • Rated Current: 630A Circuit Breaker
  • Rated Short-Circuit Making Current: 50ka Circuit Breaker
  • Rated Power of The Motor: 40W Circuit Breaker
  • Trademark: Mingde Circuit Breaker
  • Origin: Cixi, Ningbo. Zhejiang Circuit Breaker
Product Description
Outdoor Circuit Breaker ZW20

Outdoor Circuit Breaker Zw20

Main technical data of the circuit breaker ZW20
No.ItemUnitNumerical value
1Rated voltagekV12
2Rated currentA630
3Rated frequencyHz50
4Rated short-circuit breaking currentkA20
5Rated peak withstand currentkA50
6Rated short-time withstand currentkA/S20/4
7Rated short-circuit making current (peak value)kA50
8Rated operating sequence O-0.3S-CO-180s-CO
9Mechanical lifetimes10000
10Rated short-circuit breaking timestimes30
111 min frequency withstand(wet) between poles, to earth/ between open contactskV34
(dry) (wet) between poles, to earth/ between open contactskV42
12Rated lightning impulse withstand current (peak value) between poles, to earth/between open contactskV85
13Power frequency withstand voltage of secondary circuit (1 min)V2000
14SF6 gas pressureMpa0
Main technical features of the circuit breaker ZW20
No.ItemUnitNumerical value
3Opening speedm/s1.2±0.2
4Closing speedm/s0.6±0.2
5Bounce time(contacts closing)m/s≤2
6Pole center distancemm135(inside)/280(outside)
7Three pole opening/closing non-synchronismms≤2
8Each pole's conductance circuit resistanceμΩ≤150
9Closing timems25~60
10Opening time ms20~50
11Rated power of the motorW40
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Outdoor Circuit Breaker Zw20


Outdoor Circuit Breaker Zw20
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