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products
timers
coupling relays
measuring and protection relays
transducers
digital display
special devices

Thermistor prodection relay and temperature measuring relays

STH

Thermistor protection relay
for monitoring of motor temperature with standard  PTC resistors alternatively thermistors

STH

ZTH

Thermistor protection relay
for monitoring of motor temperature with standard  PTC resistors alternatively thermistors

ZTH

STE

Temperature measuring relay
Monitoring of limit temperatures by a Pt100 sensor at two-wire operation.

STE

ZTE

Temperature measuring relay
Monitoring of limit temperatures by a Pt100 sensor at two-wire operation.

ZTE