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Procure the ZW32-12/630-20 outdoor high voltage vacuum circuit breaker directly from a certified China manufacturer. Recognized as the standard outdoor pole-mounted vacuum circuit breaker for 12kV distribution networks, it provides exceptional reliability for wholesale buyers and system integrators. Whether for rural grid construction, substation protection, or industrial distribution, this model delivers the durability and low maintenance that end-users require.
Engineered to handle rigorous environmental demands, this heavy-duty VCB serves as the ideal solution for rural electrification, overhead line protection, and distribution feeder applications.
Advanced Insulation: Features a three-phase pole column structure with silicone rubber insulated poles, offering reliable outdoor operation without the risk of fire or explosion.
Operational Safety: The integrated isolation switch provides a visible breaking point, and mechanical interlocks strictly prevent misoperation during routine maintenance.
Extreme Weather Endurance: Engineered for harsh outdoor environments, the ZW32-12/630-20 operates reliably in ambient temperatures from -40°C to +45°C and at altitudes up to 2000m.
Mechanism Durability: The spring operating mechanism supports both manual and electrical charging, delivering a long mechanical life of up to 10,000 operations.
Model: ZW32-12/630-20
Rated voltage: 12 kV
Rated current: 630 A
Rated short-circuit breaking current: 20 kA
Rated peak withstand current: 50 kA
Rated short-time withstand current (4s): 20 kA
Rated short-circuit breaking current interrupting times: 30 times
Rated insulation level: 1min power frequency 42kV / lightning impulse 75kV
Mechanical life: 10,000 operations
Mounting: Pole-mounted (outdoor)
Standards: IEC 62271-100, GB/T 1984
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