Panel integration — DIN rail footprint and wiring
The 3RA2110-1KA17-1AP6: The supplied link module 3RA1921-1DA00 connects the contactor coil to the overload relay, and the supplied contactor 3RT2017-1AP61 handles the switching — no separate ordering of subcomponents for this assembly.
Duty ratings and thermal environment
The thermal bimetallic overload release provides motor protection based on heating and cooling curves — it tracks the motor's thermal state more closely than a fixed electronic curve for frequent start-stop cycles. Degree of pollution 3 means the unit is rated for conductive pollution environments typical of control panels in industrial settings — no additional conformal coating needed for normal factory air.