• Features
Short circuits are detected in the sensor circuit
Thermistor motor protection devices are used for direct monitoring of the motor winding temperature for this purpose, the motors are equipped with temperature-dependent resistors (PTC) that are directly installed in the motor winding and abruptly change their resistance at their limit temperature
No settings on the device are necessary
Solid state compatible output thanks to versions with hard gold plated contacts
Rapid error diagnosis thanks to versions that indicate open and short circuits in the sensor circuit
All versions with removable terminals
Motor protection at increased ambient temperatures, when switching frequency is too high, when start-up and braking procedures are too long, used together with frequency converters
1-circuit
2 number of CO contacts for auxiliary contacts
Screw type terminals type of electrical connection for auxiliary and control current circuit
Display version LED
Multi-function evaluation unit manual/auto/remote short circuit detection