Arc extinguishing cover for small circuit breaker58

Product Description

This miniature circuit breaker employs an optimized arc-extinguishing cover design that significantly minimizes heat concentration during the breaking process through precise arc path control, thereby comprehensively improving electrical system operational safety. During circuit-breaking operations, the arc-extinguishing cover rapidly guides the arc along a predetermined path. This elongates, fragments, and gradually cools the arc within a controlled space, preventing localized energy release that could cause excessive thermal shock to critical internal components.
Through scientifically arranged arc-extinguishing channels and rational internal structural design, the arc-extinguishing hood effectively improves arc dispersion and heat dissipation conditions, reducing the impact of high temperatures on contacts, insulating components, and surrounding structures. This precise control over arc trajectory and heat distribution helps minimize issues such as contact erosion, material aging, and degradation of insulation performance, ensuring the circuit breaker maintains stable electrical performance and mechanical reliability during long-term operation.
Under diverse load variations, frequent switching cycles, or fault interruption conditions, this arc-extinguishing hood design consistently delivers reliable arc-quenching performance, establishing enhanced safety protection for low-voltage distribution systems. With its effective thermal management capabilities and stable arc-extinguishing operation, this product not only elevates the safety rating of individual circuit breakers but also contributes to reducing overall electrical system failure risks. This compact circuit breaker is widely applicable in industrial control, building power distribution, and equipment power protection scenarios.

Composition

1 arc-extinguishing frame + 6 arc-extinguishing grid plates.

The arc-extinguishing frame is made of 0.6mm green steel plate, and the arc-extinguishing grid plates are made of 0.8mm cold-rolled steel plate Q195-A.

Parameters