Mains voltage monitoring relay Dimensions W x H x D: 35 x 85 x 58 mm Operating temperature: -20...+55 °C Voltage measurement range, AC: 184...276 V Rated output: 10 A / 250 VAC Start delay: 5 or 10 min. Assembly type: DIN-Rail Output contact: 1 Change-Over (CO) Series: 71 Series Operating voltage: 230 VAC