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ZW32-40.5/1250A type outdoor high voltage vacuum circuit breaker

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Lead time: Sample is available in 2-3 working days;
The regular order will be usually 20-30 working days after receipt of 30% advance payment

Quality Guarantee: We offer 18 months’ warranty period, and 20 years’ quality guarantee period

Payment Terms: T/T, L/C, Western Union or Paypal

Trade term: FOB or CIF prices

We’re professional OEM manufacturer, and also accept the customized products according to the supplied drawings or parameters

Description
      ZW32-40.5/1250A type outdoor high voltage  vacuum circuit breaker is the three-phase AC 50Hz, suitable for the rated  voltage of 40.5kV outdoor high-voltage switchgear, which comply with the  national standard GB1984 "high voltage AC circuit breakers" and  professional standards JB3855 "3.6 ~ 40.5kV outdoor AC high voltage  vacuum circuit breakers" and related IEC standards. It can be used  for the control and protection of electrical equipment for industrial and  mining enterprises, power plants and substations, and  suitable for frequent operation. The circuit breaker has the ability to  break off and fast break off multiple times

Environmental conditions
 - Ambient temperature: -35℃~ +45℃;
 - Relative  humidity: monthly average 90%, daily average 95%;
 - Saturated vapor pressure: Daily average value is no  more than 2.2×10-3 MPa; Average monthly value is not more than 1.8×10-3  MPa; In high humidity temperature drop, may condensation;
 - Altitude: ≤2000m;
 - Earthquake intensity is not more than 8;
 - There is no fire, explosion, serious pollution,  chemical corrosion, and violent vibration;
 - Can be also customized as the exact request.

Technical  Data

1Rated voltagekV40.5
2Rated currentA1250/1600/2000/2500  
3Rated frequencyHZ50/60
4Rated insulation levelLightning impulse withstand voltagekV185
1 min power-frequency withstand voltage80, 95/95
6Rated short-circuit breaking currentkA25/31.5
7Rated short-circuit making current (peak value)kA63/80
8Rated short-time withstand currentkA25/31.5
9Rated withstand current (peak value)kA63/80
10Rated operating sequence O-0.3s-CO-180s-CO
11Rated short-circuit durations4
12Times of breaking with the rated short-circuit currentTimes30
13Mechanical life10000
14Mechanism control voltageVAC/DC220
151min secondary circuit power frequency withstand voltagekV2
16Contact open distancemm16 ±1
17Contact Over-travelmm4±0.5
18Average opening speed  m/s1.4±1.8
19Average closing speed  m/s0.4-0.8
20Three phase simultaneity          ms≤2
21Contact closing bounce time  ms≤5
22Main circuit DC resistance per phases μΩ≤80
23Polar distancemm460 ±2
24Opening timems≤50
25Closing timems≤100

Outline  Dimension

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Outline & Mounting Dimensions

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