The RFE..electronic thermal overload relays for BF series contactors characterized by a wide current adjustment range and high reliability and accuracy of tripping.they are self powered by the main current and therefore do not require separate auxillary supply voltage.RFE electronic thermal overload relays are suitable for all types of motor starting thinks to the possibility to select several tripping classes.A single front push button is used to select the reset function,manual or automatic,and to activate or deactivate the STOP function IEC power circuit rated insulation voltage Ui:1000v
IEC auxillary circuit rated insulation voltage Ui:690v
rated impulse withstand volatge:8kv
rated frequency:50\60Hz
maximum rated current:32A for RFE45,110A for RFE110
Heat dissipation per phase:<1W
selectable tripping classes:5-10-20-30
phase failure sensitive
mounting position:any
sealable current adjuster and dip switches for tripping class selection
degree of protection:120 on front