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

Circuit Breaker, Vacuum Interrupter, Vacuum Circuit Breaker manufacturer / supplier in China, offering IEC Standard 12kv DC Indoor High-Voltage Vmv Vacuum 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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IEC Standard 12kv DC Indoor High-Voltage Vmv Vacuum Circuit Breaker

Purchase Qty.:
(Pieces)
1-99 100+
FOB Unit Price: US $1,860 US $1,260
Purchase Qty. (Pieces) FOB Unit Price
1-99 US $1,860
100+ US $1,260
Get Latest Price
Production Capacity: 22000PCS/Year Vacuum 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.: VMV
  • Operation: Manual & Electric Vacuum Circuit Breaker
  • Arc-extinguishing Medium: Vacuum
  • Structure: Vcb Vacuum Circuit Breaker
  • Type: Circuit Breaker
  • Certification: ISO9001-2000, Ohsas 180001
  • Rated Current: 630/ 1250/1600/2000/2500/3150/4000A
  • Lightning Impulse Withstand Voltage: 75kv Vacuum Circuit Breaker
  • Rated Short-Time Withstand Current: 20/25/31.5/40ka Vacuum Circuit Breaker
  • Trademark: Mingde Vacuum Circuit Breaker
  • Origin: Cixi, Ningbo Vacuum Circuit Breaker
  • Breaking Capacity: Middle& High Voltage Vacuum Circuit Breaker
  • Speed: Normal Type Circuit Breaker
  • Installation: Fixed & Withdrawal Vacuum Circuit Breaker
  • Poles Number: 3
  • Function: Overcurrent Protection
  • Rated Voltage: 12kv Vacuum Circuit Breaker
  • 1 Min Power Frequency Withstand Voltage: 42kv Vacuum Circuit Breaker
  • Rated Frequency: 50 Hz Vacuum Circuit Breaker
  • Rated Short-Circuit Breaking Current: 20/25/31.5/40ka Vacuum Circuit Breaker
  • Specification: OHSAS/ OHSMS 18001, ISO9001
  • HS Code: 8535210000
Product Description
IEC Standard 12kv DC Indoor High-voltage Vmv Vacuum Circuit Breaker
 
Overview

1. A brand new series of products, wider use in different fields and environment
2. Mechanical life up to 60,000 times
3. Expandable to smart circuit breaker
 
Operation Mechanism

VMV Modularized Operation Mechanism
VMV Modularized Operation Mechanism (with smart unit)
   Modularized design of the operation mechanism is the highlights of VMV circuit breaker. With opening module and closing module in one part, the independent operation mechanism makes the standardized production and maintenance much easier.
 
Gear Driving System

We improved VMV circuit breakers' driving system, using the gear driving system instead of the traditional chain wheel driving system. The circuit breaker operation will run more smoothly with a longer mechanical life.

Opening Oil Buffer

The application of high-performance oil buffer can greatly reduce moving contact's over-swing and rebound during the circuit breakers' opening process. In this way, it avoids the reduction of mechanical life when vacuum interrupter is over-fatigue, resulted from contact's over-swing.
 
 Main Specifications and Technical Parameters

 
ItemunitData
Rated voltagekV12
1 min power frequency withstand voltagekV42
Lightning impulse withstand voltagekV75
Rated frequencyHz50
Rated currentA630,1250,
1600,2000,2500,3150,4000
Rated short-time withstand currentkA20,25,31.5,40
Rated peak withstand currentkA50,63,80,100
Rated short-circuit breaking currentkA20,25,31.5,40
Rated short-circuit closing currentkA50,63,80,100
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 lifecycles10000,30000,60000

External DimensionIEC Standard 12kv DC Indoor High-Voltage Vmv Vacuum Circuit Breaker
VMV2-7.2,12-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

IEC Standard 12kv DC Indoor High-Voltage Vmv Vacuum Circuit Breaker
VMV2-7.2, 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
 

IEC Standard 12kv DC Indoor High-Voltage Vmv Vacuum Circuit Breaker
VMV2-7.2, 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.
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