1、High precision copper, low heat, gentle but not hot, more safe for long time power. 2、Smooth surface, flame-resistant and high temperature resistance, long service life. 3、Solid structure with tail type port and track clip buckle, easy to install. 4、With overload protection and short circuit protection, stable working performance. 5、Miniature circuit breakers are mainly used in industrial, commercial, high-rise and residential and other places. Features: High precision copper, low heat, gentle but not hot, more safe for long time power. Smooth surface, flame-resistant and high temperature resistance, long service life. Solid structure with tail type port and track clip buckle, easy to install. With overload protection and short circuit protection,  stable working performance. Miniature circuit breakers are mainly used in industrial, commercial, high-rise and residential and other places. Specification: Condition: 100% brand new Weight: 373g/13.2oz Model: TOMG3-63 4P Product features: C-type Product poles: 4P Wiring mode: clamp board wiring, three - phase four wire electricity Arc extinguishing mode: magnetic blowing Installation: guide rail installation Function: overload/short circuit protection Product certification: 3C Routine fault and treatment: A: can't switch-on 1. Whether there is a short circuit at the load end -- troubleshooting 2. If the operating mechanism fails -- replace the product 3. The rated current of the circuit breaker does not match the load current -- replace the product specification B: too high temperature 1. Wire screws are not tightened or become loose -- tighten the wire screws 2. The selected wire cross-sectional area is small -- replace the wire specifications C: no break during short circuit The selected circuit breaker does not match the working conditions of the load -- replace the product specification D: no electricity 1. If the wire stripping head is too short -- strip the wire again 2. Wire screws are not tightened or become loose -- tighten the wire screws Package List: 1 x Circuit Breaker