This button switch allows you to directly control your engine. The ON button automatically locks, while the OFF button automatically resets. Its use is simple and does not require a contactor. Made with durable plastic and metal materials, this switch has a long lifespan. It is widely used in various industrial applications such as machinery, textile equipment, etc. It offers good insulation and excellent resistance to water, dust, and oil. This switch is suitable for AC 50Hz (60 Hz) circuits with voltages up to 380 V and 220 V. It is easy to install thanks to its screw terminals. We recommend electric professionals to install and use it.