Circuit Breaker Electromagnetic Trip Assembly

Integrated electromagnetic trip mechanism designed for low-voltage circuit breakers, featuring three parallel coil units mounted on a shared insulating frame. This assembly converts electrical signals into mechanical force to drive the central locking and contact linkage system, ensuring rapid circuit interruption during overload or short-circuit conditions.

The structure combines precision-stamped metal brackets with injection-molded engineering plastic supports to maintain strict coaxiality between the copper coils and moving iron cores. Critical manufacturing controls focus on the dimensional stability of the plastic skeleton and the positional accuracy of metal inserts, preventing mechanical binding and ensuring synchronized tripping action across all poles under high-current thermal stress.

Production leverages ISO 9001 certified processes, utilizing progressive die stamping for metal components and automated assembly for multi-material integration. Quality assurance includes coaxiality checks and low-resistance testing of conductive paths to verify reliable electromagnetic performance. Customization is available for different pole configurations and rated current specifications based on provided 3D models or assembly drawings.