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TMR-E12 without error memory, 230 V AC, 1 changeover contact

The thermistor relay is used as protection relay for motors against thermal overload (inadmissible heating). This heating might be caused by mechanical overload on the shaft or when operating the motor with inadmissible voltages. A PTC thermistor is used as sensor. It should be mounted to the part of the motor that heats most in case of overload (e.g. integrated in motor winding). The device can also be used for motors with integrated thermo switch.

  • Variants:
  • 230 V AC or 24 V AC/DC
  • 1 or 2 changeover contacts (1 or 2 DPST)
Operating voltage AC 230 V AC
Operating voltage (AC/DC) 24 V AC/DC
Start-up delay 100 ms
Input / thermistor voltage 12 V
Input / thermistor current 1 mA
Input / switch-on resistance 1.8 kOhm
Input / switch-off resistance 3.0 kOhm, +/- 5%
Output / contact 1 (SPDT) or 2 (DPST) changeover contacts
Output / switching voltage 250 V
Output / continuous current 4 A
Mechanical endurance 3x107 switching cycles
Electrical endurance 1x105 switching cycles
Switching frequency 1200 cycles/h
Display Green and red LED
Dimensions (W x H x D) 22.5 x 75 x 95 mm
Weight 150 g
Operating temperature range 0 °C to +55 °C
Storage temperature range -20 °C to +70 °C
Ingress protection for housing / terminal block IP40 / IP20

Technical Data 

  • P/N11031505
    Feature 1230 V AC, 1 DPST
    Feature 2w/o error memory


pdf Produktuebersicht C|Logline 899905-05 EN 3.55 MB
last update on Friday, 3. March 2017 - 3:03