Convenient and Durable----Simple operation, direct switch without contactor. The control switch is made of PC flame retardant material shell, pure copper material, copper copper tip, nickel-plated screw, waterproof button, with plastic protective cover ,waterproof,waterproof,oilproof,longer use [Widely Used]----It is waterproof control switch, holding switch, a drill switch and a machine button. Widely used in machinery and equipment, textile machinery, distribution boxes, ships, operating rooms, etc. The multi-function control switch is suitable for industrial equipment, production equipment, complete sets of cabinets, factory workshops, etc. Switch details---- ON button self-locking, self-resetting OFF button. The control switch is open working mode, the model is ka0-10kh, and the installation hole distance is about 7.7cm. The mechanical life of the control switch is about 1 million times, and the electrical life is 500,000 times [Wiring details]----Suitable for AC 50Hz (60Hz), voltage up to 380V, circuit 220V. Both 220V single phase wiring and 380V three phase wiring can be used. Wiring includes hot and neutral wires. The power used by the device is less than 1500W. If it is higher than the AC contactor, please cooperate with the AC contactor. Image has wiring details. Please professional wiring [More Overview]----This switch is designed to be NC-free, which can directly control your motor, and female screw terminals ensure easy wiring . Control switch Press the green button, the button lock switch is on, press the red button, the green button is on, the switch is off. This switch is a commonly used equipment switch in many fields, and also has an isolation function.