The XB4BT845 is a single-pole double-throw (SPDT) Emergency Stop Pushbutton Switch with 1NO + 1NC slow-break silver alloy (Ag/Ni) contacts and screw clamp terminals. This pushbutton operator features round signaling unit head, push-pull reset, chromium-plated metal bezel, Zamak fixing collar, trigger action and mechanical latching red mushroom Ø40mm unmarked operator. This XB4 series pushbutton switch is suitable for use with the Harmony XB4 range product. It meets with the EN/IEC 60204-1, EN/IEC 60947-1, EN/IEC 60947-5-1, EN/IEC 60947-5-4, EN/IEC 60947-5-5, EN/ISO 13850, IEC 60364-5-53, JIS C 4520, UL 508 and CSA C22.2 No 14 standards.