Package Contents:1 x NVR Switch with a Emergency Stop buttonTechnical Specifications:Material: PVCColor: Black+YellowLength: 115mm/4.5"Width:80mm/3.1"Depth(including buttons): 90mm/3.5"Voltage: 230VRated Current: 16 AConnection: 5 PinFeatures and Benefits: The NVR action ensures that if you have a power supply failure the equipment will not start again until the emergency stop button is reset and the start button is pressed again. Emergency stop button has 1 no. normally open contact block & 1 no. normally closed. (Allows for extra features such as controlling a signal light/lamp) Ideal for power switching on electric motors, a great idea for all workshop machines. Rated at 230Volt, 16Amps Fixing holes and cable entry knock-outs