China Electrical Power Transformer manufacturer

3 Phase 12kv Pole Vacuum Circuit Breaker Outdoor Switch Device 50Hz Frequency

Product Details:
Place of Origin: China
Model Number: ZW32-12 Zw32-12f /630
Payment & Shipping Terms:
Minimum Order Quantity: 1
Price: 200-5000/piece
Packaging Details: wood
Delivery Time: 15 days
Payment Terms: T/T
Supply Ability: 20000 pieces/year
Contact Now

Detail Information

Poles Number: 3 Type: Vacuum
Rated Voltage: 12KV Rated Current: 630A
Product Name: High Voltege 12kv Vacuum Circuit Breaker With Overload Protector Application: Circuit-breaking
Rated Frequency: 50Hz
High Light:

vcb circuit breaker


vacuum circuit switch

Product Description

3 Phase Outdoor Switch Device 12kv Pole High Voltage Vacuum Circuit Breaker Model


ZW8-12 series of high voltage outdoor switchgear is used in three-phase AC power network of AC 50Hz, rated voltage 12KV for breaking and closing the rural network, city network and load current ,overload current, short circuit current for small scale power system. The overall structure of the product for the three-phase with whole box-type, and using the SMC insulation materials , , and it has reliable performance, high dielectric strength.
ZW8-12G is consist of ZW8-12 circuit breaker and isolation knife .and it is called conbination of circuit breaker.and also can be used segment switch,The series of ZW8-12,the mode of operation can be divided into manual and electric.


Structural Features

Town, country reform ideal equipment: It can be set with control mechanism to remote control, remote measure and adjustment.

Flexible operation, convenient: This product has performance of electric energy storage, electric close-open and hand energy storage, hand close-open, it also can be operated close or far remote.

Superior performance of open-shut: 30 times of open-shut short current at 20kA.

Small capacity of operation and high reliability: New designed small electric spring structure, parts numbers and operate capacity(about 30W) can be reduced to *** level.

Maintenance-free performance: Main breaker circuit and bivariate device, operate structure were all sealed in air of SF6(zero pressure)and not affected by outside.

Reliable sealability: It was used of mature seal structure technology and reliable capacity.

Special in-out line method: It was used silicon rubber pipe and make terminals distance sufficient, good insulator outside.

Safety in use: There was explosion proof equipment set on the top of box, even if breakdown inner, high temperature air or splash will not out.



Note: Due to continuous product improvement, the dimensions provided in this sample are for reference only. If necessary, our company can design and produce according to user requirements. Please contact the company in time.



Item Unit Parameter
Rated Voltage kV 12
Rated Current A 630
Rated Short-circuit Breaking Current kA 6.3 12.5 20
Rated Short-circuit Making Current (Peak) kA 16 31.5 50
Rated Peak Withstand Current kA 16 31.5 50
Rated Short-time Withstand Current kA 6.3 12.5 20
Rated Insulation Level 1min Power Frequency
Withstand Voltage (Dry Test)
kV 42
Lightning Impulse Withstand Voltage (Peak) kV 75
Rated Operating Sequence   O-0.3s-C O-180s-CO
Mechanical Life times 10000
Rated Short-circuit Current Breaking Times times 30
Rated Closing Voltage of Operator V 110, 220
Rated Opening Voltage of Operator V 110, 220
Clearance Between Open Contacts mm 11± 1
Over travel of Contacts mm 3
Three-phase Opening/Closing Synchronization ms ≤ 2
Closing Bouncing Time ms ≤ 2
Average Opening Speed m/s 1.0± 0.2
Average Closing Speed m/s 0.7± 0.15
Opening Time Highest Operating Voltage s 0.015~0.05
Lowest Operating Voltage s 0.03~0.06
Closing Time s 0.025~0.05
Main Loop Resistance of Each Phase μ Ω ≤ 120
Total Thickness of Permissible Wear of Moving and Static Contacts mm 3


· Order instructions:

1. The customer needs provide main parameters of the transformer (input and output voltage, capacity, loss, etc.)

2. Other customer requirements



3 Phase 12kv Pole Vacuum Circuit Breaker Outdoor Switch Device 50Hz Frequency 0




3 Phase 12kv Pole Vacuum Circuit Breaker Outdoor Switch Device 50Hz Frequency 1






Get in touch with us

Enter Your Message

You Might Be Into These