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30KV 33KV 35KV 38kv 40.5kv Vacuum Circuit Breaker Automatic Recloser

30KV 33KV 35KV 38kv 40.5kv Vacuum Circuit Breaker Automatic Recloser

Brand Name : Tengen
Model Number : ZW7
Certification : CCC
Place of Origin : Zhejiang, China (Mainland)
MOQ : 1
Price : negotiable
Payment Terms : T/T, L/C, Western Union
Supply Ability : 700 Pieces per Month
Delivery Time : 5-15 work days after confirm the payment
Packaging Details : Standard package or according to customer's requirements
Rated voltage : 30KV 33KV 35KV 38kv 40.5kv
name : air circuit breakers
Phase loop DC resistance (without current transformer) : ≤100uΩ
Poles : 3
Permitted accumulate wear-thickness of dynamic and static contact : 3mm
Weight : 800kg
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30KV 33KV 35KV 38kv 40.5kv Outdoor Vacuum Circuit Breaker Automatic Recloser


ZW7-40.5 series outdoor high voltage vacuum circuit-breaker is for three phase, rated voltage 40.5KV, AC 50HZ power system, mainly used for breaking and closing load current, over current and short-current.

  1. Using vacuum arcing, high breaking ability, long electrical endurance, mechanical life 10000 times.
  2. Simple construction, maintenance-free, No maintenance cycle is long.
  3. Good insulation performance, good prevent filth ability.
  4. Can match the spring or electromagnetic operating mechanism, mechanically sound, can be frequent operation. No fire and explosion risks.
  5. Built-in current transformer, accuracy of 0.2, can be realized three mutual protection
  6. Built-in condensation controller, circuit breakers can be maintained at a certain temperature reliably.

Ambient condition

1. Ambient air temperature: Upper limit of +40°C, lower limit of -30 °C;

2. Wind speed: no more than 34m/s;

3. Altitude: No more than altitude of 2000 meters (If need higher altitude, its rated level accordingly).

4. Air pollution levels: no more than III;

5. Maximum Temperature difference:Not more than 25°C.

1Rated voltagekV40.5




1min power frequency withstand voltagedry95
Lightning impulse withstand voltage (peak)185
3Rated currentA1250, 1600, 2000
4Rated short-circuit breaking currentkA20, 25, 31,5
5Rated operating sequenceO-0.3s-CO-180s-CO
6Rated short-circuit breaking current breaking timesTimes12
7Rated short- circuit closed current (peak)kA50, 63, 80
8Rated peak withstand current
9Rated short-time withstand currentkA20, 25, 31.5
10Rated short-circuit durationS4
11Average opening speedm/s1.5 ±0.2
12Average closing speed0.7 ±0.2
13Contact closing bounce durations≤2
14Three phase closing and opening synchronism≤2
15Opening time≤150
16Closing time≤60
17Mechanism lifeTimes10000
18Rated operating voltage and auxiliary loop rated voltageVDc220, 110, 24
Ac220, 110, 24
19Phase loop DC resistance (without current transformer)≤100
20Permitted accumulate wear-thickness of dynamic and static contactmm3

Product Tags:

hv circuit breaker


high voltage air circuit breaker

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30KV 33KV 35KV 38kv 40.5kv Vacuum Circuit Breaker Automatic Recloser Images

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