Type : OFF-(ON) SPST current - voltage: - Mounting hole : Ø 19 mm Operating temperature : -25 °C ~ +55 °C Relative humidity : 45~85% RH Insulation resistance: > 100 MΩ Contact resistance: < 50 MΩ Contact material: silver alloy mechanical life: 1,000,000 cycles Electrical life: 50,000 cycles dielectric strength: between terminals of the same pole : 1000 VAC between terminals of different poles : 2000 VAC Housing material : nickel-plated brass pressure : 5.5 N IP protection rating : IP40/IP65 max. voltage: 24 VDC / 1 A 230 VAC / 0.5 A