TR121

TR121 is multifunction differential thermostat with 6 operation functions and 4 service functions. The relay has two normally open output contacts 16 A. Multifunction differential thermostat TR121 is delivered together with two sensors with cable length 3 meters.

Device functions

TR121 fce 1
F1 - differential thermostat

TR121 fce 3
F3 - double stage thermostat 2

TR121 fce 5
F6 - heating / cooling

TR121 fce 2
F2 - double stage thermostat 1

TR121 fce 4
F4 and F5 - zone thermostat 1 and 2 ch.

Differential-Thermostat-TR121

Main features

  • Temperature range -40°C ... +109°C
  • Temperature difference 7°C ... 25°C
  • 6 working and 4 service functions
  • Two 16 A output contacts
  • Delivered with two sensors
  • Digital optical operation status signalisation