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

Circuit Breaker, Breaker, Vacuum Circuit Breaker manufacturer / supplier in China, offering AC 50Hz 17.5kv- 2500A Vmd Vacuum Universal Circuit Breaker, Zw32 12kv Outdoor Vacuum Circuit Breaker, 550 Modularized Omni-Sealed Solid Insulation Metal-Clad Switchgear and so on.

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Supplier Homepage Product Circuit Breaker AC 50Hz 17.5kv- 2500A Vmd Vacuum Universal Circuit Breaker

AC 50Hz 17.5kv- 2500A Vmd Vacuum Universal Circuit Breaker

Purchase Qty.:
(Pieces)
1-99 100+
FOB Unit Price: US $1,880 US $1,160
Purchase Qty. (Pieces) FOB Unit Price
1-99 US $1,880
100+ US $1,160
Get Latest Price
Production Capacity: 22000PCS/Year DC 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 DC Circuit Breaker
  • Arc-extinguishing Medium: Vcb DC Circuit Breaker
  • Structure: Vcb DC Circuit Breaker
  • Type: Circuit Breaker
  • Certification: ISO9001-2000
  • Rated Current: 2500A DC Circuit Breaker
  • Lightning Impulse Withstand Voltage: 95 Kv DC Circuit Breaker
  • Rated Short-Time Withstand Current: 25/31.5 Ka DC Circuit Breaker
  • Rated Short-Circuit Breaking Current: 25/31.5 Ka DC Circuit Breaker
  • Specification: OHSAS/ OHSMS 18001, ISO9001
  • HS Code: 8535210000
  • Breaking Capacity: Middle& High Voltage DC Circuit Breaker
  • Speed: Normal Type Circuit Breaker
  • Installation: Fixed & Withdrawal DC Circuit Breaker
  • Poles Number: 3
  • Function: Overcurrent Protection
  • Rated Voltage: 17.5kv DC Circuit Breaker
  • 1 Min Power Frequency Withstand Voltage: 50 Kv DC Circuit Breaker
  • Rated Frequency: 50 Hz DC Circuit Breaker
  • Rated Peak Withstand Current: 63/80 Ka DC Circuit Breaker
  • Trademark: Mingde DC circuit breaker
  • Origin: Cixi, Ningbo DC Circuit Breaker
Product Description
AC 50Hz 17.5kV- 2500A 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 parameters
  
ItemunitData
Rated voltagekV17.5
1 min power frequency withstand voltagekV50
Lightning impulse withstand voltagekV95
Rated frequencyHz50
Rated current
 
A2000
Rated short-time withstand currentkA25, 31.5
Rated peak withstand currentkA63,80
Rated short-circuit breaking currentkA25,31.5
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 Dimension


AC 50Hz 17.5kv- 2500A 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 17.5kv- 2500A 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
 
Normal Operating Environment Condition

a) Normal operating environment condition
Highest temperature:                  +40ºC
Lowest temperature:                   -15ºC
b) Environment humidity
Daily mean relative humidity:        ≤95%
Monthly mean relative humidity:     ≤90%
Daily mean saturated vapor pressure:   ≤2.2×10-3 MPa
Monthly mean saturated vapor pressure:  ≤1.8×10-3 MPa
c) Altitude: below 1000m area;
d) Earthquake intensity: no more than 8 degree;
e) The product shall be away from weep, fire and explosion, chemical corrosion and 
strenuous vibration place.



Special Operating Condition

Please consult with manufacturer on manufacturing technology when operating environment is the climatic environment with high altitude, high humidity and great temperature change or other special environment condition.


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.

 
Certification

AC 50Hz 17.5kv- 2500A Vmd Vacuum Universal Circuit Breaker
 
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