Main material : 304 stainless stee Switching voltage : 220vd Breakdown voltage : 450VDC min Breakdown current : 1.5 ADC min Resistance value : 0.1 - min Working temperature : 40-125' C Medium specific gravity : 0 7g / cm3 Working pressure : < 1 . 0mpa Electric shock capacity : 200w100-265vac )