The SU0614 Manual Call Point has a plastic coated frangible element to ensure safe and reliable operation, producing no dangerous glass shards. It is operated by simply pressing on the centre of the frangible element until it snaps. A hammer or other impact device is not required. The snapped frangible element releases a double pole micro switch. The SU0614 is a surface mounting, white MCP that includes a white back box to house the terminations. It is fitted with a green label carrying the words EMERGENCY DOOR RELEASE in white text. There are 2 terminal blocks for connection. Switch function (NO/NC) is determined by the terminals used. Part Number SU0614