Normal Environmental Conditions

This product is designed to be safe under the following conditions:

Indoor use
Altitude up to 2 000 m
Operating temperature +5 °C / +41 °F to +40 °C / +104 °F
Storage temperature -25 °C / -13 °F to +60 °C / +140 °F
Maximum relative humidity 80 % for temperatures up to 31 °C / 89 °F decreasing linearly to 50 % relative humidity at 40 °C / 104 °F
Mains supply voltage fluctuations up to ±10 % of the nominal voltage
Transient overvoltages up to the levels of overvoltage category II
Temporary overvoltages occurring on the mains supply
Pollution degree 2
Ingress protection rating: IP20