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

Circuit Breaker, Breaker, Vacuum Circuit Breaker manufacturer / supplier in China, offering 7.2kv-2500A Vmd Vacuum Circuit Breaker, 24kv-2500A Vs1 Vacuum Circuit Breaker with Ce Approval, 12kv-4000A Vmd Vacuum Circuit Breaker and so on.

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Supplier Homepage Product Circuit Breaker 7.2kv-2500A Vmd Vacuum Circuit Breaker

7.2kv-2500A Vmd Vacuum Circuit Breaker

Purchase Qty.:
(Pieces)
1-19 20+
FOB Unit Price: US $1,800 US $1,160
Purchase Qty. (Pieces) FOB Unit Price
1-19 US $1,800
20+ US $1,160
Get Latest Price
Production Capacity: 22000PCS/Per 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.: VMD
  • Operation: Mannual & Electric Type Circuit Breaker
  • Arc-extinguishing Medium: Vacuum
  • Structure: Vcb Circuit Breaker
  • Type: Circuit Breaker
  • Certification: ISO9001-2000, CCC, Ohsas 180001
  • Rated Current: 2500A Circuit Breaker
  • Mechanical Life: 30000 Times 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: 7.2kv Circuit Breaker
  • Rrated Short-Time Withstand Current: 20\25\31.5\40kv Circuit Breaker
  • Rated Withstand Current (Peak): 63,80 Ka Circuit Breaker
  • Specification: CE, SGS, TUV
  • HS Code: 8535210000
Product Description
7.2kV-2500A VMD vacuum circuit breaker

        The complete specification of VMD series vacuum circuit breaker can meet customers' different needs.It adopts the latest embedded poles and low-resistance vacuum interrupter and empolys an accurate gear driving system in the place of the traditional chain wheel driving system.

         With main conductive circuit sealed in epoxy resin, the insulation performance will be more stable.VMD series circuit breaker has passed Type Test Report according to GB and IEC standards.It has exported to 26 countries and regions in the world.


Technical Parameters

 
NOItem UnitTechnical Data
1Rated voltageKV7.2
21 min power frequency withstand voltage42
Lighting impulse withstand voltage(peak value)75
3Rated FrequencyHz50
4Rated currentA2500
5Rated short time withstand currentKA25,31.5
6Rated withstand current(peak)63,80
7Rated short-circuit opening current25,31.5
8 Rated short-circuit closing current 63,80
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 Dimension7.2kv-2500A Vmd Vacuum 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



7.2kv-2500A Vmd Vacuum 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

7.2kv-2500A Vmd Vacuum 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.
 
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