What is the maximum continuous current the motor can be exposed to?
This can be calculated from the specifications shown on the motor data sheet. Here’s how: Maximum rotor temperature – Ambient temperature = Allowable temperature rise Allowable temperature rise divided by thermal resistances (add up rotor-to-case and case-to-ambient) = Continuous power that can be dissipated in Watts. Set this power = to the current squared x armature resistance.
