The ETF012 Series is a combined thermostat and hygrostat temperature switch. Its humidity and temperature settings are fully adjustable. Its switching capacity is very high.
It is a DIN rail mount temperature switch. Its electronic hygrotherm determines the ambient temperature and relative humidity within an enclosure that has electronic components and turns on the heater or fan at the set point to prevent condensation.
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.
SPECIFICATIONS
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): Approximately 5 sec
Contact Type: Change-over contact (relay)
Contact Resistance: <10 mΩ
Service Life:
NC: >50,000 cycles
NO: >100,000 cycles
Max Switching Capacity: 24 Vdc, 4 A
Relay NC: 240 Vac, 6 (1) A output
Relay NO: 240 Vac, 8 (1.6) A output
NC: 120 Vac, 6 (1) A
NO: 120 Vac, 8 (1.6) A
EMC: Acc. to EN 55014-1-2, EN 61000-3-2, EN 61000-3-3
Optical Indicator: LED
Connection: 5-pole terminal, clamping torque 0.5Nm max; rigid wire 2.5 mm2 (0.10 in2) stranded wire (with wire end ferrule) 1.5 mm2 (0.06 in2)
Mounting: Clip for 35 mm (1.4") DIN rail, EN50022
Casing: Plastic according to UL94 V-0, light gray
Dimensions: 77 x 60 x 43 mm (3.0 x 2.4 x 1.7")
Weight: Approx. 0.20 kg (7.1 oz)
Fitting Position: Vertical
Operating Temperature: 0 to 60°C or 32 to 140°F
Storage Temperature: -20 to 80°C (-4 to 176°F)
Protection Type: NEMA 2 (IP20)