Safety Relay Dimensions W x H x D: 22.5 x 100 x 121.6 mm Operating temperature: -25...60 °C Design: Base unit, advanced Assembly type: Top Hat Rail Mounting Auxiliary contacts: 1 Break Contact (NC) Output contact without delay: 3 Make Contacts (NO) Protection rating (housing): IP20 Service life, electric: 0.25 Mil. cycles Service life, mechanical: 10 Mil. cycles Termination type: Screw Terminal Response time: 0.11 ms