Arc extinguishing cover for small circuit breaker55
Product Description
This miniature circuit breaker employs a specialized arc-extinguishing cover design compliant with low-voltage electrical equipment standards. It systematically optimizes the arc-extinguishing structure, material selection, and airflow guidance to fully address the safety, reliability, and stability demands of low-voltage power distribution systems. During circuit breaker operation, the arc-extinguishing cover effectively guides, segments, and cools the generated arc, ensuring rapid decay within a controlled space. This achieves stable, controllable arc extinction, meeting the safe operation requirements of low-voltage electrical equipment under diverse operating conditions.
The compact, rationally designed structure maintains consistent arc-extinguishing performance across rated current, short-circuit current, and frequent operation conditions. Through a rationally designed arc-extinguishing channel and the application of high-temperature and arc-resistant materials, it effectively reduces the impact of arc energy on critical internal components of the circuit breaker. This minimizes contact erosion and performance degradation, enhancing the overall breaking capacity and service life of the product. Simultaneously, its stable arc-extinguishing performance helps reduce operational failure risks, providing continuous and reliable protection for power systems.
This product is suitable for industrial control, building power distribution, equipment power protection, and various low-voltage electrical applications, delivering reliable circuit breaking and protection functions across diverse operational environments.
Composition
Eight arc-extinguishing grid plates + four clamping plates.
The arc-extinguishing grid plates are made of Q195 cold-rolled steel strip with Ni2b coating;
The clamping plates are made of red steel paper.



