The ETF 012 senses the ambient temperature and relative humidity in an enclosure. Depending on which contact combination is chosen, it then turns on or off a connected device if either the temperature is below or the humidity is above the set point. The integrated LED in each adjustment knob is lit when indicating the active function.
The external sensor can be positioned freely anywhere in the enclosure for precise measurements.
The ETF 012 senses the ambient temperature and relative air humidity in an enclosure. The external sensor can be positioned freely anywhere in the enclosure for precise measurements.
Technical Data
Switching difference (temperature): 2 K (±1 K tolerance) at +25°C (+77°F), 50% RH
Switching difference (humidity): 4% RH (±1% tolerance) at +25°C (+77°F), 50% RH
Reaction time: approx. 5 seconds
Contact type: change-over contact (relay)
Service life: > VDE: NO/NC > 15,000 cycles
UL: NO/NC > 30,000 cycles
Max. switching capacity (relay output): 10 A resistive / 1.6 A inductive @ AC 240 V
0.6 A @ DC 60 V¹
Max. inrush current: AC 30 A for 10 sec.
Connection: 5-pole terminal, clamping torque 0.5 Nm max.:
solid/stranded² wire – AWG 14 max. (2.5 mm²)
Housing: plastic, UL 94V-0, light grey
Mounting: clip for 35 mm DIN rail, EN 60715
Mounting position: vertical
Dimensions: 3.0 x 2.4 x 1.7” (77 x 60 x 43 mm)
Weight: approx. 3.5 oz. (100 g)
Operating/Storage temperature: -40 to +140°F (-40 to +60°C)
Operating/Storage humidity: max. 90% RH (non-condensing)
Protection type: IP20
Approvals: UL File No. E164102 / VDE / EAC
¹ not UL confirmed
² When connecting with stranded wires, wire end ferrules must be used.
Operating voltage:
AC 100-240 V, 50/60 Hz
(min. AC 90 V, max. AC 265 V)
Setting range – temperature:
0 to +60°C
Setting range – humidity:
50 to 90% RH
Operating voltage:
AC 100-240 V, 50/60 Hz
(min. AC 90 V, max. AC 265 V)
Setting range – temperature:
+32 to +140°F
Setting range – humidity:
50 to 90% RH
Operating voltage:
DC 24-48 V
(min. DC 20 V, max. DC 60 V)
Setting range – temperature:
0 to +60°C
Setting range – humidity:
50 to 90% RH
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