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

Circuit Breaker, Breaker, Vacuum Circuit Breaker manufacturer / supplier in China, offering AC 50Hz 630A 17.5kv Vmd Vacuum Universal Circuit Breaker, Vmd 40.5 Kv -1250A Handcart Vacuum Breaker Embedded Pole Types, Pole Mounted 17.5kv-1250A 50Hz Vs1 Vacuum Circuit Breaker and so on.

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Supplier Homepage Product Circuit Breaker AC 50Hz 630A 17.5kv Vmd Vacuum Universal Circuit Breaker

AC 50Hz 630A 17.5kv Vmd Vacuum Universal Circuit Breaker

Purchase Qty.:
(Pieces)
1-99 100+
FOB Unit Price: US $1,620 US $1,280
Purchase Qty. (Pieces) FOB Unit Price
1-99 US $1,620
100+ US $1,280
Get Latest Price
Production Capacity: 22000PCS/Year Circuit Breaker
Transport Package: Wooden Case Packing (900*900*1000mm)
Payment Terms: L/C, T/T, Western Union, Paypal

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Basic Info
  • Model NO.: VMD
  • Operation: Manual & Electric Circuit Breaker
  • Arc-extinguishing Medium: Vcb Circuit Breaker
  • Structure: Vcb Circuit Breaker
  • Type: Circuit Breaker
  • Certification: ISO9001-2000
  • Rated Current: 630A Circuit Breaker
  • Rated Short-Time Withstand Current: 20/25/31.5 Ka Circuit Breaker
  • Trademark: Mingde Circuit Breaker
  • Origin: Cixi, Ningbo Circuit Breaker
  • Breaking Capacity: Middle& High Voltage Circuit Breaker
  • Speed: Normal Type Circuit Breaker
  • Installation: Fixed & Withdrawal Circuit Breaker
  • Poles Number: 3
  • Function: Overcurrent Protection
  • Rated Voltage: 17.5kv Circuit Breaker
  • Rated Frequency: 50 Hz Circuit Breaker
  • Mechnical Life: 10000times Circuit Breaker
  • Specification: OHSAS/ OHSMS 18001, ISO9001
  • HS Code: 8535210000
Product Description
AC 50Hz 630A 17.5kv  Vmd Vacuum Universal Circuit Breaker
 
Overview

1. The complete specification of VMD series vacuum circuit breaker can meet customers' different needs.
2. VMD adopts the latest embedded poles and low-resistance vacuum interrupter. With main conductive circuit sealed in epoxy resin, the insulation performance will be more stable.
3. VMD employs an accurate gear driving system, instead of the traditional chain wheel driving system.  
4. VMD series circuit breaker passed Type Test Report according to GB and IEC standards.
5. VMD series circuit breaker has exported to 26 countries and regions in the world.


Main Technical Parameters
    
ItemunitData
Rated voltagekV17.5
1 min power frequency withstand voltagekV50
Lightning impulse withstand voltagekV95
Rated frequencyHz50
Rated current
 
A630
Rated short-time withstand currentkA20,25
Rated peak withstand currentkA50,63
Rated short-circuit breaking currentkA20,25
Rated short-circuit closing currentkA50,63
Rated short-circuit durationS4
Contact over-travel mm3.5±0.5
Clearance between open contactsmm9±1/11±1
Average opening speedm/s1.1±0.2
Average closing speedm/s0.6±0.2
Opening time ms35-60
Closing timems20-45
Rated operation sequence O-0.3s-CO-180s-CO(<40kA)/
O-180s-CO-180s-CO(≥40kA)
Mechanical lifecycles10000,30000
  
External DimensionsAC 50Hz 630A 17.5kv Vmd Vacuum Universal Circuit Breaker
VMD2-7.2,12-pole center distance 150mm
 
No.Rated Voltage(kV)Rated current(A)Short-circuit breaking current(kA)h1(mm)h2(mm)h(mm)A(mm)B(mm)
17.2,12,17.5630-125020-31.5260205622438609
27.2,12,17.5630-125020-31.5280275637432598

AC 50Hz 630A 17.5kv Vmd Vacuum Universal Circuit Breaker
VMD2-7.2, 12, 17.5-pole center distance 210mm
 
No.Rated Voltage(kV)Rated current(A)Short-circuit breaking current(kA)h1(mm)h2(mm)h(mm)A(mm)B(mm)
17.2,12,17.5630-125020-31.5260205622438609
27.2,12,17.5630-160020-31.5280275637432598
37.2,121250-160040295310697432598
47.2,12200031.5-40295310697432598
 

AC 50Hz 630A 17.5kv Vmd Vacuum Universal Circuit Breaker
VMD2-7.2, 12, 17.5-pole center distance 275mm
 
No.Rated Voltage(kV)Rated current(A)Short-circuit breaking current(kA)h1(mm)h2(mm)h(mm)A(mm)B(mm)
17.2,12,17.5630-125020-31.5280275637432598
27.2,121250-160040295310697432598
37.2,121600-250025-40295310697432586
47.2,123150-400031.5-40295310697432586
57.2,123150-400031.5-40295310733432586

Packaging, transportation and storage precautions

(1) Circuit breaker should be in the state of opening and energy storage spring in a state without energy storage when packing. It should be in the state of opening and energy storage spring in a state without energy storage when packing. And it should be fixed on the bottom of the wooden case, should have waterproof measures and complete package labels.
(2) Circuit breakers can't invert and avoid strong vibration, rain, surface damage, and components lost when transportation.
(3) When loading the circuit breaker, we suggest the following tools: crane, forklift and driving. When lifting the circuit breaker, we should not hook on the body or pole of the circuit breaker, but on the lifting hole which has the lifting mark.
(4) When circuit breaker has a long-term storage, it should be in a state of opening and energy storage spring in a state without energy storage and placed in dry ventilated indoor preventing from moisture, vibration control and harmful gas erosion, and regularly checked whether environment meets the requirements.
(5)When first use products after long-term storage, it need to have a power frequency withstand voltage insulation testing.
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