Contact arrangement: Form Z Initial contact resistance, max 15m?:By voltage drop 6 to 8V DC at rated current Contact material: initial insulation resistance at 500V DC min 100m? Initial breakdown voltage:1,000V rms for 1min between non-consective terminals; 2,000V rms for 1min between dead metal parts and each terminal; 2,000V rms for 1min between ground and each terminal; Shock resistance max: in the free position 10G; in the operation position 30G; Vibration resistance: standard type (max)55Hz Ambient temperature: -20 to +60oC, -4 to +140oC Ambient humidity: <95% Protective construction: IEC IP64