ZW32-12 12kV Outdoor High Voltage Vacuum Circuit Breaker

General Introduction

ZW32-12 type outdoor H.V. vacuum circuit breaker is the outdoor distribution equipment with rated voltage 12KV, three phase AC 50Hz. It is used in substation and industrial and mining enterprises distribution system for protecting and controlling use. It is also used in rural power grid places with frequent operation for breaking and closing the load current and over load current and short circuit current of power system.

The out insulation of the vacuum interrupter adopt silicone rubber casing, with longer life, higher reliability, good weather resistance, convenient for transportation, good rating. The operating mechanism adopt miniaturization, high reliable spring operation mechanism, has the advantages of simple structure, mechanical life up to 10000 times. This circuit breaker and controller can form a complete set as recloser, realize remote control, telemetry, remote communication, remote adjustment four remote function. Product features: no combustion and explosion hazards, maintenance free, small size, light weight (less than 100kg), long service life (million), safety and reliability, simple operation, convenient maintenance and installation.

Working Condition

The environment temperature: upper limit +40℃, lower limit -30℃

Altitude ≤ 2000 meters

Wind pressure: no more than 700Pa (corresponding to the wind speed 34m/s)

Earthquake intensity: do not exceed 8 degree

Pollution grade: III class

Maximum daily temperature: less than 25℃.

Model&Meaning

Main Features of ZW32-12 Outdoor Vacuum Circuit Breaker

• Vacuum arc extinguishing technology
• High breaking capacity and reliable insulation
• Pole-mounted compact structure
• Maintenance-free operation
• Long mechanical and electrical life
• Excellent weather resistance
• Suitable for frequent operation
• Optional intelligent controller and auto recloser
• SCADA and remote communication support
• Silicone rubber or epoxy resin insulation

Applications

The ZW32-12 Outdoor Vacuum Circuit Breaker is widely used in:

Outdoor power distribution systems
Utility substations
Rural electrification projects
Industrial and mining enterprises
Smart grid automation systems
Pole-mounted switching stations
Renewable energy distribution networks
Overhead transmission and distribution lines

Advantages of ZW32-12 Vacuum Circuit Breaker

High Reliability

The vacuum interrupter provides stable arc extinguishing performance and excellent insulation reliability under harsh outdoor environments.

Maintenance-Free Design

The fully sealed structure reduces maintenance requirements and lowers operating costs.

Compact and Lightweight

Pole-mounted compact design simplifies transportation and installation.

Smart Grid Compatibility

Optional FTU/RTU controller enables smart distribution automation and remote monitoring.

Technical Specification

Outline Drawing

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Frequently Asked Questions

What is the difference between ZW20 and ZW32 vacuum circuit breaker?

ZW32 generally offers higher performance, improved automation compatibility, and more advanced intelligent control options compared with ZW20 series.

Can the ZW32-12 be used as an auto recloser?

Yes. With intelligent controller integration, the ZW32-12 can work as an automatic recloser for smart grid applications.

Is remote control available?

Yes. The breaker can support remote monitoring and SCADA communication through optional intelligent controllers.