TR121

Technical features

Supply and control voltage 230 VAC
System frequency 50/60 Hz
Power consumption max 1,5 VA
Sensor type BMR RT_P, NTC 3k3
Measuring temperature range -40°C ... +109°C
Temperature difference range 7°C ... 25°C
Number and type of contacts 2 x switching contact (one per channel)
Nominal output relay current 16 A
Switching power max. AC 4000 VA
Nominal/max switching voltage 250 VAC / 440 VAC
Hysteresis fix 5%
Mechanical lifetime 3 x 106
Electrical lifetime 1 x 104, 250 VAC, 16 A
Working ambient temperature -20°C ... +55°C
Mounting IEC 60715 (DIN 35mm)
Electrical strength 4 kV
Maximum input wire diameter 2 x 1,5mm2 or 1 x 2,5mm2
Weight 75 g
Dimensions 90 x 18 x 65 mm
Standards IEC 60255, 56, IEC 61010

Terminal description

TR121_terminals
  1. Supply voltage
  2. Temperature sensors
  3. 2nd output indication
  4. 1st output indication
  5. Function selection
  6. Temperature setting
  7. Fine temperature setting
  8. Difference setting
  9. 2nd output
  10. 1st output

Connection

TR121_connection