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 of Mingde Brand, 17.5kv -2500A Vmd Indoor Three Phase Vcb in Switchgear, Contact Box Md/150 and so on.

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Supplier Homepage Product Circuit Breaker Outdoor Circuit Breaker Zw20 of Mingde Brand

Outdoor Circuit Breaker Zw20 of Mingde Brand

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
Get Latest Price
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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Basic Info
  • Model NO.: ZW20
  • 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

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 timems20~50
11Rated power of the motorW40
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