Festool 200422 Ptc Resistor For Ct Mini /Ctl Midi Mobile Dust Extractor

The Festool 200422 PTC Resistor is a Positive Temperature Coefficient thermistor, a crucial safety component for Festool CT Mini & Midi Dust Extractors that acts as a self-resetting fuse, protecting the motor from overheating or overcurrent by sharply increasing its resistance when hot, thus cutting power and automatically restoring it when cooled down.