Gold Member Since 2015
Audited Supplier

Mingde Electrical (Shanghai) Co., Ltd.

Vacuum Circuit Breaker, Switchgear, Earthing Switch manufacturer / supplier in China, offering Vmd 40.5 Kv -1250A Handcart Vacuum Breaker Embedded Pole Types, Pole Mounted 17.5kv-1250A 50Hz Vs1 Vacuum Circuit Breaker, Spout MD/250 with APG Technology and so on.

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Main Products

VS1 [Jan 18,2016]
VS1
Indoor Withdrawable Type 12 Kv-2000A Circuit Breaker of Vs1 Type

Overview

1. VS1A series of vacuum circuit breakers are the Second Generation indoor switch equipment, with the rated voltage 7.2kv, 12kv, 17.5kv and 24kv.
2. VS1A series of vacuum circuit breakers adopt the integrated design of simple structure and convenient operation.
3. It is equipped with a perfect mechanical and electrical interlock to enhance its anti-incorrect operation performance.
4. Standards: IEC62271-100, IEC56, GB1984-2003, GB/T11022, DL/T403-2000, etc.


Main Specifications and Technical Parameters 


ItemunitData
Rated voltagekV12
1 min power frequency withstand voltagekV42
 
Lightning impulse withstand voltagekV75
Rated frequencyHz50
Rated currentA2000A
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-travelmm3.5±0.5
Clearance between open contactsmm9±1/11±1
Average opening speedm/s1.1±0.2
Average closing speedm/s0.6±0.2
Opening timems35-60
Closing timems20-45
Rated operation sequence O-0.3s-CO-180s-CO(<40kA)/
O-180s-CO-180s-CO(≥40kA)
Mechanical lifecycles10000


External Dimension



VS1A-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)
17.2,12630-125020-31.5260205622438609
27.2,12,17.5630-125020-31.5280275637432598




VS1A-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
 
 


VS1A-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