Arc extinguishing cover for small circuit breaker50

Product Description

Developed with safety and durability as core objectives, this miniature circuit breaker arc-extinguishing cover fully accounts for the frequent tripping and multiple operation characteristics of low-voltage circuit breakers in actual operation. It is dedicated to sustaining stable structural integrity and reliable arc-extinguishing performance under long-term usage conditions, thereby effectively prolonging the overall service life of the circuit breaker.
During circuit breaker closing, tripping, and fault interruption, repeated contact separation generates arcs and instantaneous mechanical shocks, imposing high demands on the structural strength and stability of internal components. Through rational structural design and stable material selection, this arc-extinguishing cover resists deformation, loosening, or performance degradation during repeated interruptions. It consistently maintains its original installation position and functional state, providing reliable internal protection for the circuit breaker.
The structural design prioritizes overall strength and balanced stress distribution. By optimizing internal space allocation and reinforcing critical load-bearing areas, the arc-extinguishing cover effectively withstands thermal and mechanical stresses generated during interruptions. Under frequent operation, its structural stability ensures consistent arc-extinguishing space and arc control paths, preventing performance degradation due to structural changes and enhancing circuit breaker reliability.
Regarding material properties, the arc-extinguishing cover utilizes insulating materials with excellent thermal resistance, arc resistance, and mechanical strength. These materials withstand prolonged high temperatures, arc impacts, and repetitive operation environments. They resist aging or degradation during extended service, ensuring stable performance throughout the product lifecycle and reducing maintenance and replacement needs due to component wear.
This miniature circuit breaker arc-extinguishing cover finds broad application in industrial power distribution systems, building and residential distribution installations, switchgear assemblies, and end-user electrical protection scenarios, compatible with multiple miniature circuit breaker models. By maintaining structural integrity during repeated interruptions, the product actively reduces contact wear, lowers failure rates, and extends circuit breaker service life.
Overall, designed with safety, reliability, and durability as core principles, this product delivers consistent arc-extinguishing and protective performance under frequent tripping and long-term operation. It provides robust safeguards for miniature circuit breakers, serving as a critical component for enhancing the reliability and service life of low-voltage power distribution systems.

Composition

13 arc-extinguishing components + 1 arc-extinguishing cover + 2 arc-isolating plates. The raw material of the arc-extinguishing cover is PA66 101L, and the raw material of the arc-isolating plates is PA6 GF30 FR (40) V - 0.

Parameters