REGULATING
18.02.2020 | Specifications are subject to change without notice. Suitability of this product for its intended use and any associated risks must be determined by the end customer/buyer in its final application.
ELECTRONIC HYGROTHERM WITH EXTERNAL SENSOR
ETF 012
81
81
> Efficient temperature
& humidity control
> Wide voltage range
> Operating temperature down to -40 °C
> High switching capacity
> With external sensor
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 i lit when indicating the active function.
The external sensor can be positioned freely anywhere in the enclosure forprecise 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 (humidity) approx. 5 sec.
Contact type change-over contact (relay)
Service life VDE: NO/NC > 15,000 cycles
Max. switching capacity (relay output) 10 A resistive / 1.6 A inductive @ AC 240 V
Max. inrush current AC 30 A for 10 sec.
Connection 5-pole terminal, clamping torque 0.5 Nm max.:
Housing plastic, UL 94V-0, light grey
Mounting clip for 35 mm DIN rail, EN 60715
Mounting position vertical
Operating/Storage temperature -40 to +140 °F (-40 to +60 °C)
Operating/Storage humidity max. 90 % RH (non-condensing)
Dimensions 3.0 x 2.4 x 1.7" (77 x 60 x 43 mm)
Weight approx. 3.5 oz. (100 g)
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.
UL: NO/NC > 30,000 cycles
0.6 A @ DC 60 V¹
solid/stranded² wire – AWG 14 max. (2.5 mm²)
Hygrotherm
ETF 012
L N
+ –
Heater
Part No. Cable – 1 m Part no. Cable – 2 m Operating voltage Setting range – temperature Setting range – humidity
01231.0-00 01231.0-01 AC 100 – 240 V, 50/60 Hz (min. AC 90 V, max. AC 265 V) 0 to +60 °C 50 to 90 % RH
01231.9-00 01231.9-01 AC 100 – 240 V, 50/60 Hz (min. AC 90 V, max. AC 265 V) +32 to +140 °F 50 to 90 % RH
01231.1-00 01231.1-01 DC 24 – 48 V (min. DC 20 V, max. DC 60 V) 0 to +60 °C 50 to 90 % RH
Heater
Wiring example
N
L