Ambient temperature: -40 - +80°C (NC valve), -40 - +55°C (NO valve). Permissible voltage variation: +10 - -15%, as double frequency coils: ±10%, a.c. coils for 220-230 / 380-400 V: +6 - -15%, as double frequency coils: +6 - -10%. Enclosure: IP 20. DIN plug: For use with DIN socket only. The three pins on the coil can be fitted with spade tabs, 6.3 mm wide (to DIN 46247). The two current carrying pins can also be fitted with spade tabs, 4.8 mm wide. Max. lead cross section: 1.5 mm2. Use of the protective cap supplied will prevent inadvertent contact with live parts. DIN socket (to DIN 43650): Leads are connected in the socket. The socket is fitted with a Pg 11 screwed entry for 6 - 12 mm. Holding: 10 W/21 VA. Inrush: 44 VA.