Specification product brand name SIRIUS product designation Thermal overload relay product type designation 3RU5 General technical data power loss [W] for rated value of the current at AC in hot operating state ● per pole 0 W type of calculation of power loss depending on pole quadratic surge voltage resistance rated value 8 kV Substance Prohibitance (Date) 09/03/2013 Ambient conditions ambient temperature ● during transport -55 ... +80 °C relative humidity during operation 0 ... 90 % Main circuit number of poles for main current circuit 3 operating frequency rated value 50 ... 60 Hz Electrical Safety protection class IP on the front according to IEC 60529 IP20 touch protection on the front according to IEC 60529 finger-safe, for vertical contact from the front Approvals Certificates