D.E. Marl Industrievertretungen Partner der MORGAN Electrical Carbon Deutschland


PTC sensors are temperature-

dependent resistors that are

used in combination with

corresponding PTC monitoring

devices for motor protection.

The resistance of the PTC sensors rises when heated and reaches a high-impedance state at a certain temperature (NAT). At this value, the PTC-resistor relay trips and a warning signal or the like can be switched to prevent overheating of the motor. The PTC thermistors supplied by us are manufactured according to DIN 44081/44082.