Emergent button: Rated Voltage(Un): AC 380V, 220V, 127V DC: 48V, 36V, 24V. ·Circumstance temperature -5°C~ +40°C, average temperature not exceeding 35°C.·Altitude above sea level less than 2000 m.·Humidity not exceeding 50% at 40°C and not exceeding 90% at 25°C.·Installation class II or III.·Pollution class 2.·Installation method DIN Rail mounting type.·The external magnetism shall not be more ...