ZW7- 33kv 40.5kv 35kv Outdoor Vacuum Circuit Breaker VCB

Basic Information
Place of Origin: XIAN, China
Brand Name: XG
Certification: ISO CCC
Model Number: ZW7
Minimum Order Quantity: 1 SET
Packaging Details: WOODEN CASE
Delivery Time: 7-15 DAYS
Payment Terms: L/C, T/T, D/A, D/P, Western Union, MoneyGram
Supply Ability: 2000 SET
Detail Information
Warranty: 12 Months OEM: Yes
Package: Exporting Standard Package MOQ: 1set
Operation Type: Electric Or Manual Life Span: More Than 15 YEARS
Working Temperature: -45℃ To +40℃ Function: Control And Protection
High Light:

ZW7- 33kv Vacuum Circuit Breaker


35kv Vacuum Circuit Breaker


Outdoor Vacuum Circuit Breaker VCB

Product Description

1.  ZW7- 33kv 40.5kv 35kv outdoor vacuum circuit breaker vcb
ZW7-40.5 outdoor high voltage vacuum circuit breaker is used for AC three-phase power system with 50Hz and voltage of 40.5KV, which is used for breaking, closing load current, overload current and short circuit current.
2.  main function:
1. Vacuum arc extinguishing, strong breaking capacity, long electrical life and 10,000 mechanical life;
2. Simple structure, maintenance-free, long maintenance period;
3. Good insulation performance and strong anti-pollution ability;
4. It can be equipped with spring or electromagnetic operating mechanism, with reliable mechanical performance and frequent operation; no fire and explosion hazard;
5. Built-in current transformer, the lecturer's precision reaches 0.2, which can realize three-phase interactive protection;
6. With condensation controller, it can keep the circuit breaker running reliably under certain temperature and humidity.
3. Environmental conditions:
1. Ambient air temperature: upper limit +50 ° C, lower limit -30 ° C;
2. Altitude: ≤3000m (If the altitude is to be increased, the rated insulation level will increase accordingly);
3. Wind pressure: no more than 700Pa (equivalent to a wind speed of 34m / s;
4. Amplitude: seismic intensity of 8 degrees;
5. Pollution level: Level III;
6. Large daily temperature difference: no more than 35 °C.
4. main technical parameters:

1Rated voltageKV40.5
2Rated insulation levelPower frequency withstand voltagDry test95
Wet test80
Lightning impulse withstand voltage (peak)185
3Rated currentA1250,1600,2000
4Rated short-circuit breaking currentKA20,25,31.5
5Rated operation sequence 0-0.3s-combination-180s-combination
6Rated short circuit current breaking timestimes12
7Rated short circuit closing current (peak)KA50,63,80
8Rated peak withstand current
9Rated short-time withstand currentKA20,25,31.5
10Rated short circuit continuous currentS4
11Average opening speedm/s1.5±0.2
12Average closing speed0.7±0.2
13Contact closing bounce times≤2
14Three-phase combined (minute) gate synchronous time difference≤2
15Closing time≤150
16Opening time≤60
17Mechanical lifetimes10000


Rated operating voltage and auxiliary circuit rated voltageVDC220,110,24
19DC resistance per phase circuit (without transformer)μΩ≤100
20Dynamic and static contacts allow wear thicknessmm3

5.  Photo and drawing
6. Factory
ZW7- 33kv 40.5kv 35kv Outdoor Vacuum Circuit Breaker VCB 1
7. FAQ
1. Send the technical data, better for all useful information; we will make a good recommendation.
If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding.
2. The lead time depend on quantity of order. Some standard type is on stock. Otherwise, it will take 3-15 days.
3. Usually shipped by sea, small order or urgent order we can send you by air.
4. All our activities are accredited to ISO 14001:2015 and IEC standard.

Contact Details

Phone Number : +8613319220197

WhatsApp : +008613319220197