The EFR 012 electronic hygrostat senses the relative humidity in an enclosure and turns on a heater at the set point, helping prevent the formation of condensation in the enclosure. The integrated LED is lit when the connected device is in operation.
The EFR 012 electronic hygrostat senses the relative humidity in an enclosure and turns on a heater at the set point, helping prevent the formation of condensation in the enclosure.
Technical Data
Switching difference: 5% RH (± 1% tolerance) – at 77°F (25°C) and 50% RH
Reaction time: approx. 5 seconds
Contact type: SPDT / change-over contact (relay)
Service life: >50,000 cycles
Max. switching capacity (relay output): 8 A resistive / 1.6 A inductive @ AC 120 V
8 A resistive / 1.6 A inductive @ AC 240 V
100 W @ DC 24 V
Max. inrush current: AC 16 A for 10 sec.
Connection: 5-pole terminal, clamping torque 0.5 Nm max.:
solid/stranded¹ 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: 2.54 x 1.65 x 1.5” (64.5 x 42 x 38 mm)
Weight: approx. 2.3 oz. (65 g)
Operating/Storage temperature: +32 to +140°F / -4 to +158°F
Operating/Storage humidity: max. 90% RH (non-condensing)
Protection type: IP20
¹ When connecting with stranded wires, wire end ferrules must be used.
Operating voltage: AC 230 V, 50/60 Hz
Setting range: 40 to 90% RH
Approvals: UL File No. E164102 / VDE / EAC
Operating voltage: AC 120 V, 50/60 Hz
Setting range: 40 to 90% RH
Approvals: UL File No. E164102 / – / EAC
Operating voltage: AC 230 V, 50/60 Hz
Setting range: 65% RH pre-set
Approvals: UL File No. E164102 / VDE / EAC
Operating voltage: AC 230 V, 50/60 Hz
Setting range: 50% RH pre-set
Approvals: UL File No. E164102 / VDE / EAC
Operating voltage: AC 120 V, 50/60 Hz
Setting range: 65% RH pre-set
Approvals: UL File No. E164102 / – / EAC
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