This product is specially designed for 35mm DIN rail installation and is suitable for household, commercial and industrial power distribution systems. They feature a compact structure, allowing for side-by-side installation in distribution boxes, saving space and facilitating maintenance. Thermal tripping is used for overload protection, with a bimetallic strip for delayed action; magnetic tripping is used for short-circuit protection, capable of cutting off large currents within milliseconds, comprehensively ensuring electrical safety. Their rated voltages are typically 230V/400V, and the rated current range varies from 6A to 63A, flexibly adapting to different load requirements. They are indispensable safety guards in modern power distribution systems. The sturdy and durable housing is marked with clear "LINE" (input) and "LOAD" (output) labels to guide users in correct wiring and prevent protection failure due to reversed connections. The operating handle is marked with a yellow label to enhance visual recognition. It is equipped with a prominent red fault indicator light that illuminates when the circuit trips due to overload or short circuit, facilitating quick fault location. The design of the operating handle conforms to ergonomics, providing a clear feel for closing and opening the circuit.