Electromagnetically Actuated Vacuum Circuit Breaker (VCB)
POLE-MOUNTED SWITCH

Electromagnetically Actuated Vacuum Circuit Breaker (VCB)

Standards: IEC 62271-100:2008

The HZW32 series outdoor pole-mounted vacuum circuit breaker is a 12kV, three-phase AC 50Hz high-voltage distribution device. It is primarily designed for breaking and closing load current, overload current, and short-circuit current in power systems. This VCB is suitable for protection and control in substations and power distribution systems within industrial and mining enterprises. It is particularly well-suited for the construction and upgrading of urban and rural power grids and in locations with frequent switching operations.

Request a Quote
Technical Specifications
Rated voltage (kV) 12
Rated current (A) 630/1250
Rated frequency (Hz) 50/60
Operation mode Manual/automatic
Short-time withstand current (kA) 20/25
Duration of short-time withstand current (s) 4
Rated peak withstand current (kA) 50/63
Power-frequency withstand voltage (kV) 34 (Wet) 42 (Dry)
Lightning impulse withstand voltage (kV) 75
Switch weight (kg) 150
Control and operation function Remote control is available
Insulation Vacuum interrupter and compound insulation
Features
Robust Sealed Structure: The three-phase pole-type fully enclosed structure offers excellent sealing performance, significantly improving resistance to humidity and condensation, making it ideal for cold or wet environments.
Reliable Mechanism: The operating mechanism is housed within a sealed mechanism box, effectively preventing corrosion and enhancing the overall reliability of the mechanism.
Smart Grid Compatibility: Can be integrated with intelligent controllers to achieve distribution automation. The circuit breaker can be equipped with two-phase or three-phase current transformers for overcurrent and short-circuit protection, and to provide current acquisition signals for the intelligent controller. Metering current transformers can be added based on customer requirements.
Operating Conditions
Temperature: ±40℃
Pollution Level: IV
Relative Humidity: daily average ≤95%, monthly average ≤90%
Seismic Grade: 8
Altitude: ≤5000m
Installation Environment: Places free from flammable, explosive hazards, or chemical corrosion.

Note: Contact HCRT if a different condition is required. We offer customized solutions as well.
Related Products
Get in Touch
Have questions or concerns about electrical power distribution products? Get answers quickly by emailing our engineers.
Nearly 20 Years of Industry Experience
10,000+ Units/Year Production Capacity
40,000m²+ Factory Area
500+ Power Utility Clients
1 Billion+ CNY Annual Sales Revenue

E-mail: ling.ma@hcrtgs.com

View Other Categories