Arc extinguishing cover for small circuit breaker61

Product Description

This miniature circuit breaker employs an arc-extinguishing cover structure with stable physical and electrical properties, systematically optimized for demanding conditions such as long-term operation and multiple short-circuit interruptions. The cover meets low-voltage electrical equipment requirements in material selection, structural strength, and arc resistance, withstanding high temperatures, electrodynamic forces, and arc energy impacts during interruption. This ensures reliable and stable breaker operation under complex conditions.
During short-circuit or overload faults, the arc-extinguishing cover effectively guides, segments, and cools the arc, causing it to rapidly decay and extinguish within a controlled space. This ensures stable breaking performance of the circuit breaker. Its excellent physical strength and thermal stability effectively prevent structural deformation, material aging, or performance degradation caused by frequent short-circuit interruptions. This reduces damage to contacts and internal insulating components, ensuring consistent electrical performance even after multiple interruptions.
With its stable and reliable arc-extinguishing performance, this compact circuit breaker meets the demands of long-term continuous operation and high-reliability applications. It helps reduce fault occurrence rates and maintenance frequency while enhancing overall system operational efficiency. The product is widely applicable in industrial control, building power distribution, and various low-voltage distribution systems, balancing safety with durability and reliability.

Composition

11 arc-extinguishing plates + 1 side plate.

The arc-extinguishing plates are made of 0.7*73.5 mm thick steel sheets, with a copper-based and nickel plating on the surface, and have passed a 72-hour salt spray test.