... (some)Insulative resistance: a.Between terminal and out can≥100MΩ; b.Between contact points when they are in open conditioan≥5M ... for 1min, there should be no damage, or creeping action; b. Applying AC660V between two contacts for 1min, there should be ... , VDE, TUV, CQC, RoHs compliant 1/2" disk bimetal thermostat, w/ UL,TUV, VDE, CQC , Rohs compliant