About this item [Convenient and durable]----Easy to work, the direct switch does not require a contactor. The control switch is a PC flame retardant material shell, which is made of pure copper, copper tip, nickel screw, waterproof button, with plastic protective cover, waterproof and oil-proof, for long time use< /p> [Widely Used] ----It is waterproof control switch, holding switch, punching switch and push button machine. Widely used in mechanical equipment, textile machinery, distribution boxes, ships, operating rooms, etc. Multi-purpose control switches apply to industrial equipment, production equipment, full cabinets, factory workshops, etc. [Switch Details]----The POWER push buttons are automatically locked, the OFF buttons are automatically reset. The control switch is open working mode, the model is ka0 - 10kh, the mounting hole distance is about 7.7cm. The mechanical life of the control switches is about 1 million times, and the electrical life is 500,000 times [Wiring details]----Suitable for AC 50 electrical circuits Hz (60 Hz), voltage up to 380 V, 220V . Both 220V single phase wiring and 380V three phase wiring can be used. The wiring includes the live wire and the zero wire. The power used by the equipment is less than 1500W. If it is higher than that of the AC contactor, please cooperate with the AC contactor. Image has wiring details. Professional Wiring [More General Information] ---- This switch is designed without NC, it can control your motor directly, internal screw terminals ensure easy wiring. The control switch presses the green button, the button lock switch is on, the red button is pressed, the green button is on, and the switch is off. This switch is a commonly used equipment switch in many fields, and it also has the isolation function