Control voltage: 230 V or 115 V a.c. or d.c. Permissible voltage variation: +10 - -15%. Max. working pressure = 17 bar. Max. test pressure = 22 bar. Operation range, LP side: –1 - 12 bar Pe. Temperature compensation: The time relay is temperature-compensated in the range -40 - +60°C. Screwed cable entry: Pg 13.5. Max. bellows temperature: 100°C. Enclosure: IP 20 to IEC 529.