Electronic thermostat - ETF 012

Temperature and humidity adjustable
Optical operating display (LED)
High switching capacity
Clip fixing

The electronic hygrotherm senses the ambient temperature and relative humidity in an enclosure
with electric/electronic components, and turns on a heater (or alternatively a fan) at either set
point, helping prevent the formation of condensation in the enclosure. The LED integrated in the
adjustment knob on the active controller is lit when the connected device is in operation.

Switch difference (temperature) 2K (± 1K tolerance) at 25°C/77°F (50% RH)
Switch difference (humidity) 4% RH (± 1% tolerance) at 25°C/77°F (50% RH)
Reaction time (humidity) 5 sec.
Contact type change-over contact (relay)
Service life NC: > 50,000 cycles
NO: > 100,000 cycles
Max. Switching capacity (Relay NC: 240VAC, 6 (1) A
output) NO: 240VAC, 8 (1.6) A
NC: 120VAC, 6 (1) A
NO: 120VAC, 8 (1.6) A
100WDC at 24VDC
Max. inrush current 16AAC for 10 sec.
Optical indicator LED
Connection 5-pole terminal, clamping torque 0.5Nm max.:
rigid wire 2.5mm²
stranded wire (with wire end ferrule) 1.5mm²
Mounting clip for 35mm DIN rail, EN 60715
Casing plastic according to UL94 V-0, light grey
Dimensions 77 x 60 x 43mm
Weight approx. 0.2kg
Fitting position vertical
Operating / Storage temperature 0 to +60°C (+32 to +140°F) / -20 to +80°C (-4 to +176°F)
Operating / Storage humidity max. 90% RH (non-condensing)
Protection type IP20

Art. No. Operating voltage Setting range temperature Setting range humidity Approvals
01230.0-00 230VAC, 50/60Hz 0 to +60°C 50 to 90% RH

01230.9-00 120VAC, 50/60Hz +32 to +140°F 50 to 90% RH

01230.9-01 120VAC, 50/60Hz 0 to +60°C 50 to 90% RH