Arc extinguishing cover for small circuit breaker57

The arc-extinguishing cover of this miniature circuit breaker features a rational structure and maximizes internal space utilization, achieving highly efficient arc extinction within a compact volume.

Product Detail

Product Description

This miniature circuit breaker employs an arc-extinguishing cover design characterized by rational structure and high space utilization, delivering efficient and stable arc-extinguishing performance while meeting compact installation requirements. Through meticulous internal layout, the arc-extinguishing cover establishes a scientifically designed arc-extinguishing channel within its limited volume. This effectively guides, elongates, and segments the arc generated during the breaking process, accelerating arc cooling and extinction. Consequently, the circuit breaker ensures safe and reliable operation under various working conditions.
The optimized internal space of the arc-extinguishing cover features coordinated functional zones that enhance arc-extinguishing efficiency without increasing overall volume. The rational arrangement of grid plates and channel structure helps control arc trajectories, reduce arc energy concentration, and minimize high-temperature impacts on contacts and surrounding insulating components. This efficient spatial utilization not only boosts the circuit breaker's breaking capacity but also effectively reduces thermal stress and wear on internal components, thereby extending product lifespan.
This design is particularly suited for distribution systems and equipment applications with stringent installation space constraints. It delivers reliable circuit protection while maintaining the product's compact and modular advantages. With its efficient arc-quenching performance, compact structural layout, and excellent system adaptability, this miniature circuit breaker meets the demands of industrial control, building power distribution, and various low-voltage electrical environments.

Composition

12 arc-extinguishing components + 4 clamping plates. The raw material for the arc-extinguishing components is 0.8 cold-rolled steel plate Q195, and the raw material for the clamping plates is 0.8HB flame-retardant hard steel paperboard.