1、One-piece structure, seamless connection, flame retardant material to protect chip. 2、All copper contacts, large column wiring, excellent conductivity, load more current. 3、Widened handle grip, isolation function, user-friendly design. 4、The circuit breaker is used to distribute electrical energy and protection lines and power equipment from leakage, overload, short circuit, undervoltage and other faults. It can also perform infrequent line switching and infrequent starting of the motor 5、The experiment button, before putting into operation, you should press the experiment button to operate 2-3 times, confirm that it can be reliably disconnected before running. Features: One-piece structure, seamless connection, flame retardant material to protect chip. All copper contacts, large column wiring, excellent conductivity, load more current. Widened handle grip, isolation function, user-friendly design. The experiment button, before putting into operation, you should press the experiment button to operate 2-3 times, confirm that it can be reliably disconnected before running. The circuit breaker is used to distribute electrical energy and protection lines and power equipment from leakage, overload, short circuit, undervoltage and other faults. It can also perform infrequent line switching and infrequent starting of the motor as well as overload, short circuit, under voltage and leakage protection. Specification: In:160A/225A/250A(Optional) Ui:800V Pole:3P Size:165 * 105 * 85mm / 6.5 * 4.13 * 3.35in Installation Mode:Horizontal or vertical Package List: 1*Circuit Breaker 4 set of Screw 2*Black Septa