Arc extinguishing cover for small circuit breaker46
Product Description
This arc-extinguishing cover is a critical functional component developed specifically for low-voltage miniature circuit breakers. Manufactured through precision molding, it delivers consistent dimensional accuracy and structural uniformity. It enables reliable assembly and secure fixation within the circuit breaker, providing a robust foundation for arc extinction and protection during the breaking process.
During the design phase, critical installation dimensions and assembly benchmarks were systematically planned. Production employs high-precision molds to strictly control forming errors, ensuring dimensional accuracy and high batch consistency. This precision forming method ensures the arc-extinguishing cover achieves high compatibility with the internal structure of the circuit breaker during assembly. It can be accurately positioned at the designated location, avoiding assembly interference or loosening issues caused by dimensional deviations, thereby enhancing overall assembly efficiency and quality stability.
Regarding assembly compatibility, this miniature circuit breaker arc extinguishing cover demonstrates excellent structural adaptability. Once installed, it remains securely fixed within the breaker, resisting displacement or detachment under mechanical shocks, electrodynamic forces, and vibrations generated during instantaneous breaking. This stable fixation helps maintain the relative positioning of the internal arc-extinguishing chamber and arc-control structures, ensuring consistent and effective arc-extinguishing performance across diverse operating conditions and prolonged service life.
Simultaneously, the arc-extinguishing cover's structural design fully considers the coordinated operation of other functional components within the circuit breaker. While achieving secure installation, the product does not interfere with the normal operation of the contact system, operating mechanism, or other electrical components. This ensures harmonious coordination among all functional units of the circuit breaker, enhancing the overall reliability and safety of the unit's operation.
Regarding materials and manufacturing processes, the arc-extinguishing cover balances excellent mechanical strength, heat resistance, and electrical insulation properties. It withstands the high temperatures and arc impacts generated during breaking operations while maintaining stable structure and performance under long-term use. The surface quality and structural consistency achieved through precision mold forming further enhance the product's overall quality and durability.
This miniature circuit breaker arc extinguishing cover is compatible with multiple circuit breaker models and finds extensive application in building power distribution systems, industrial power distribution equipment, and complete switchgear assemblies. With its precise dimensions, strong assembly compatibility, and stable operation, the product provides robust assurance for the reliability of internal circuit breaker structures.
Overall, this product achieves high dimensional accuracy and superior assembly performance through precision molding techniques. It ensures stable fixation within the circuit breaker without interfering with other components' operation, serving as a critical supporting part for enhancing the overall performance and reliability of miniature circuit breakers.
Composition
4 short arc-extinguishing plates+8 long arc-extinguishing plates+1 clamping plate.
The arc-extinguishing plates are made of Q195 steel sheets with Ni3b coating;
The clamping plate is made of red steel paper.



