Relay Security Emergency Button and Port Security Manual Reset (with monitoring button) and Auto, Power 24Vdc, 05 NO contacts (6A) and 01 NC contact (3A), Useful Life Mechanical 10 (7) cycles, temperature Operation -20 ° ... + 55 ° C, Category 3/4 to EN 954-1, line PSR-SCP-24DC / ESD / 5X1 / 1X2 / 300, Phoenix Contact.