Permanent Magnet Intelligent Outdoor Vacuum Circuit Breaker ZW32-12(M)
Negotiable
China
No. 439, Yizhi Road, Zone A, Xiaolan Economic and Technological Development Zone, Nanchang County, Nanchang City, Jiangxi Province
0791-88556630
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Product Introduction

Overview:

The ZW32-12(M) permanent magnet outdoor vacuum circuit breaker (hereinafter referred to as the "circuit breaker") is rated for a voltage of 12kV and designed for three-phase AC systems with a frequency of 50Hz. It is primarily used for breaking and closing load currents, overload currents, and short-circuit currents in power systems. This circuit breaker is suitable for protection and control in distribution systems of substations and industrial and mining enterprises, as well as in rural power grids where frequent operation is required.

The circuit breaker is characterized by its compact size, lightweight design, anti-condensation properties, and maintenance-free operation, making it well-suited for harsh climatic conditions and polluted environments.

Performance Advantages: This model utilizes a permanent magnet operating mechanism for operation. The use of a permanent magnet in the operating mechanism provides holding force, keeping the switch in either the open or closed position. This design reduces the number of mechanical components and shortens the mechanical transmission chain, thereby significantly improving the reliability and mechanical lifespan of the switch.

Technical Specifications

 

Item Unit Parameter
Rated Voltage kV 12
Rated Frequency Hz 50
Rated Current A 630
Rated Short-Circuit Breaking Current kA 20
Rated Peak Withstand Current (Peak) kA 50
Rated Short-Time Withstand Current kA 20
Rated Short-Circuit Closing Current (Peak) kA 50
Mechanical Lifespan Times 10,000
Rated Short-Circuit Breaking Current Breaking Times Times 30
Power Frequency Withstand Voltage (1 min): (Wet) (Dry) Phase-to-Phase and to Ground/Across Open Contacts kV 42/48
Lightning Impulse Withstand Voltage (Peak) Phase-to-Phase, to Ground/Across Open Contacts kV 75/85
Secondary Circuit 1-Minute Power Frequency Withstand Voltage kV 2