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Mingde Electrical (Shanghai) Co., Ltd.

Circuit Breaker, Breaker, Vacuum Circuit Breaker manufacturer / supplier in China, offering IEC and Ce Approved 7.2kv-4000A Vmv 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 and Ce Approved 7.2kv-4000A Vmv Circuit Breaker

Purchase Qty.:
(Pieces)
1-19 20+
FOB Unit Price: US $1,860 US $1,220
Purchase Qty. (Pieces) FOB Unit Price
1-19 US $1,860
20+ US $1,220
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Production Capacity: 22000PCS/Year Circuit Breaker
Transport Package: Wooden Case Circuit Breaker
Payment Terms: L/C, T/T, Western Union, Paypal

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Basic Info
  • Model NO.: VMV
  • Operation: Manual & Electric Circuit Breaker
  • Arc-extinguishing Medium: Vacuum
  • Structure: Vcb Circuit Breaker
  • Type: Circuit Breaker
  • Certification: ISO9001-2000, CCC, Ohsas 180001
  • Rated Current: 4000A Circuit Breaker
  • Rated Short Time Power Frequency Withsta: 42kv Circuit Breaker
  • Specification: ISO9001/OHSAS/OHSMS 18001
  • HS Code: 8535210000
  • 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: 7.2 Kv Circuit Breaker
  • Rated Short -Time Breaking Current: 20/25/31.5/40A Circuit Breaker
  • Trademark: Mingde Circuit Breaker
  • Origin: Cixi, Ningbo, Zhejiang Circuit Breaker
Product Description
IEC and CE Approved 7.2kv-4000A VMV Circuit Breaker 

VMV Circuit Breakers' Embedded Poles

 
       VMV circuit breakers adopt the second generation embedded poles, through advance APG technology, the lowresistance vacuum interrupter and main conductive circuit parts are sealed in epoxy resin, greatly simplify the assembly process, lower the circuit's resistance, and improved the stability.

        What's more, Vacuum interrupter is sealed in with epoxy resin material, guaranteed the minimized affection from external environment, and its external insulating ability will avoid the influence from dust, moisture, small animal, condensation and filthy, fully satisfy requirements of GB/IEC standards of creep distance in secondary filthy area.


Technical Innovation

         VMV circuit breakers' overall structure is optimize base on traditional VCB, with more simple structure .What's more, all VMV circuit breakers' operating mechanism are standard and compatible, so great reduced  users' equpments maintenance cost. 

         Modularized design of operating mechanism is VMV vacuum circuit breaker' shighlight,   opening module and closing module are in one part, can separate from mechanism' other parts, so convenient to maintain, quick to exchange ,  and  with short power cut for repaing.   What's more manu-facturer's prodution effciency is much more higher.


Gear Driving System

        Fully Automatic Production Assembly Line VMV circuit breaker's assembly line is designed and produced by ourselves, according to our actual production need   and  circuit breakers' technical features.  
 
       Every production process is controlled and monitore computer .Thank you for automatic line, our products increased greatly ,  up to  22000 piece per year.


Technical Parameters

 
NOItem UnitTechnical Data
1Rated voltageKV7.2
21 min power frequency withstand voltage42
 Lighting impulse withstand voltage(peak value)75
3Rated FrequencyHz50
4Rated currentA4000
5Rated short time withstand currentKA31.5,40
6Rated withstand current(peak)80,100
7Rated short-circuit opening current31.5,40
8 Rated short-circuit closing current 80,100
9Rated duration of short-circuit S4
10Contact's clearance 3.5±0.5
11Contact's travel 9±1/11±1
12Average opening speedm/s1.1±0.2
13Average closing speed m/s0.6±0.2
14Opening timems35-60
15Closing timems20-45
16Mechanical life times30000
17Rated operating order O-0.3S-CO-180S-CO(<40KA)
O-180S-CO-180S-CO(≥40KA)

External Dimensions
IEC and Ce Approved 7.2kv-4000A Vmv Circuit Breaker

VMV2-7.2,12,17.5-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 and Ce Approved 7.2kv-4000A Vmv Circuit Breaker
VMV2-7.2, 12, 17.5-pole center distance 210mm
 
NoRated 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 and Ce Approved 7.2kv-4000A Vmv 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.
IEC and Ce Approved 7.2kv-4000A Vmv Circuit Breaker
 
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