ZW7 40.5 33kv Outdoor Switch VCB Circuit Breaker High Voltage

Basic Information
Place of Origin: XIAN
Brand Name: XG
Certification: ISO,CCC
Model Number: ZW7
Minimum Order Quantity: 1 SETS
Price: USD300-1000
Packaging Details: WOODENC ASE
Delivery Time: 3-7 DAYS
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 2000 SETS
Detail Information
Material: Galvanized Sheet And Accessories Standard: IEC/GB
Function: Control And Protection Installation Location: Power Plants, Substations And Power Systems Etc
Warranty: 12 Months OEM: Yes
Package: Exporting Standard Package
High Light:

ZW7 Switch VCB Circuit Breaker


33kv Switch VCB Circuit Breaker


40.5kv Switch VCB Circuit Breaker

Product Description



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.

The 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.


2.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.


3.The main technical parameters:


NO Item Unit Value
1 Rated voltage KV 40.5
2 Rated insulation level Power frequency withstand voltage Dry test 95
Wet test 80
Lightning impulse withstand voltage (peak) 185
3 Rated current A 1250,1600,2000
4 Rated short-circuit breaking current KA 20,25,31.5
5 Rated operation sequence   0-0.3s-combination-180s-combination
6 Rated short circuit current breaking times times 12
7 Rated short circuit closing current (peak) KA 50,63,80
8 Rated peak withstand current
9 Rated short-time withstand current KA 20,25,31.5
10 Rated short circuit continuous current S 4
11 Average opening speed m/s 1.5±0.2
12 Average closing speed 0.7±0.2
13 Contact closing bounce time s ≤2
14 Three-phase combined (minute) gate synchronous time difference ≤2
15 Closing time ≤150
16 Opening time ≤60
17 Mechanical life times 10000
18 Rated operating voltage and auxiliary circuit rated voltage V DC220,110,24
19 DC resistance per phase circuit (without transformer) μΩ ≤100
20 Dynamic and static contacts allow wear thickness mm 3
21 weight kg 800




ZW7 40.5 33kv Outdoor Switch VCB Circuit Breaker High Voltage 0




ZW7 40.5 33kv Outdoor Switch VCB Circuit Breaker High Voltage 1




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1. Send the technical data, better for all useful information; we will make a good recommendation.

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.

5. Technology ensure the quality satisfy international request.

Contact Details

Phone Number : +8613319220197

WhatsApp : +8613319220197