... >IP68 Protection degree stainless steel anti-explosion waterproof sealed piezo switch specification : Degree of Protection >IP68Contact TypecustomizableMaximum Voltage250V AC/DCThermal ... Unit: 2,000V AC 1 min .between live/dead part and terminals of different poles; 1,000V AC 1 ... . Iumination Unit:2,00V AC,1 min .between live part/grounp product display:our certificate : stainless steel anti-explosion ...