Voltage and Current: The waterproof switch is suitable for AC 50hz (60HZ), voltage up to 380v, 220V. On/off switch: the on button is self-locking and the off button is set automatically.Made of plastic, this push button switch is strong and durable, not easy to age and resistant to wear and abrasion. Waterproof design: There is a waterproof cover on the two buttons to start and stop the device.The on button is self-locking and the off button is automatically reset. Waterproof design: There is a waterproof cover on the two buttons to start and stop the device.The on button is self-locking and the off button is automatically reset. Perfect compatibility: widely used in mechanical equipment, textile machinery, etc.