Electronic Thermostat
ETL 011 | 12 to 48 VDC

  • Large setting range
  • Small hysteresis
  • Optical operating display (LED)
  • Change-over contact
  • Signal application

The electronic thermostat registers the surrounding air temperature and can switch a signal current via its internal relay with a potential-free change-over contact. Signal-processing devices can be controlled directly with the ETL 011. In order to control heating and cooling equipment, filter fans and signal devices the switch module SM 010 or a similar device is needed. The LED integrated in the adjustment knob shows the closed status of the contact 1-2. When temperature is rising contact 1-2 opens and the LED turns off. In currentless state (no supply voltage) contact 1-2 opens.

Technical Data

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Switch temperature difference4K (±1K tolerance) at +20°C (+68°F)
Sensor elementNTC
Reaction timeapprox. 5 sec.
Contact typechange-over contact (relay)
Service life>100.000 cycles (at 10mW)
Max. switching current (relay output)DC 0.5A at 48VDC
Min. switching capacityDC 10mW (at 0.1V, 100mA or 1mA, 10V)
Optical indicatorLED
Connection5-pole terminal, clamping torque 0.5Nm max.:
rigid wire/stranded wire1 2.5mm² (AWG 14)
Mountingclip for 35mm DIN rail, EN 60715
Casingplastic according to UL94 V-0, light grey
Dimensions64.5 x 42 x 38mm
Weightapprox. 70g
Fitting positionvertical
Operating/Storage temperature-40 to +85°C (-40 to +185°F)
Operating/Storage humiditymax. 90% RH (non-condensing)
Protection typeIP20

1 When connecting with stranded wires, wire end ferrules must be used.

Art. No.Operating voltageSetting rangeApprovals
01131.2-0012-48VDC (min. 10VDC, max. 60VDC)-20 to +60°CUL File no. E164102EACVDE submitted
01131.2-0112-48VDC (min. 10VDC, max. 60VDC)-4 to +140°FUL File no. E164102EACVDE submitted

Technical Drawing

Electronic Thermostat ETL 011