Time Clock Relay Dimensions W x H x D: 54 x 90 x 66 mm Operating temperature: -20...+55 °C Operating voltage: 220...240 VAC Power reserve: 300 min. Assembly type: DIN-Rail Output contact: 1 Change-Over Switch, Quartz Program duration: Week Protection rating (housing): IP20 Termination type: Screw Terminal Type: mechanical Min. switching interval: 2 h