Arc extinguishing cover for small circuit breaker54

Product Description

Equipped with a high-performance arc-extinguishing cover structure, this miniature circuit breaker is specifically designed to enhance breaking reliability and extend product service life. During the instantaneous breaking action, the arc extinguishing cover rapidly guides and elongates the arc, effectively segmenting it between multiple arc extinguishing grids. This significantly reduces arc temperature and energy concentration. This process effectively suppresses arc erosion and melting damage to contact surfaces, minimizes issues like contact oxidation and sticking caused by high-temperature arcs, and ensures contacts maintain excellent electrical conductivity and mechanical stability.
Through optimized arc-quenching path design and the use of high-temperature-resistant materials, this product maintains stable arc-quenching performance even under frequent switching operations and short-circuit faults, substantially enhancing the circuit breaker's breaking capacity and operational safety. Simultaneously, the significant reduction in contact wear effectively extends the maintenance cycle of the entire unit, minimizing downtime risks caused by component aging or damage. This helps users reduce daily operational and maintenance costs while decreasing the frequency of spare part replacements.
This compact circuit breaker is suitable for diverse applications including industrial control, power distribution, building electrical systems, and equipment protection. It ensures electrical safety while balancing economic efficiency and reliability.

Composition

1 arc-extinguishing frame + 9 arc-extinguishing grid plates.

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

Parameters