EFR 012 Electronic Hygrostat
- Adjustable & pre-set relative humidity setpoints
- Compact design
- High switching capacity
- Optical function display (LED)
- DIN rail mountable
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.
Technical Data
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| Switch difference | 5%RH (± 3% RH tolerance) at 25°C/77°F (50% RH) |
| Reaction time | approx. 5 sec. |
| Contact type | SPDT / change-over contact (relay) |
| Service life | > 100,000 cycles |
| Max. switching capacity (relay output) | 8A resistive / 1.6A inductive @ 120VAC |
| 8A resistive / 1.6A inductive @ 240VAC | |
| 4A @ 24VDC | |
| Connection | 5-pole terminal, clamping torque 0.5Nm max.: solid wire - AWG 14 max. (2.5mm²) stranded wire (with wire end ferrule) - AWG 16 max. (1.5mm²) |
| Housing | plastic, UL 94V-0, light grey |
| Mounting | clip for 35mm DIN rail, EN 60715 |
| Mounting position | vertical |
| Operating | +32 to +140°F (0 to +60°C) |
| Storage temperature | -4 to +176°F (-20 to +80°C) |
| Max. storage humidity | 90% RH (without condensation) |
| Dimensions | 2.54 x 1.65 x 1.5” (64.5 x 42 x 38mm) |
| Weight | approx. 2.3 oz. (65g) |
| Protection type | IP20 |
| Part No. | Operating voltage | Setting range | Approvals |
| 01245.0-00 | 230VAC | 40 to 90% RH | CSA, VDE |
| 01245.9-00 | 120VAC | 40 to 90% RH | CSA |
| 01246.0-00 | 230VAC | 65% RH pre-set | CSA, VDE |
| 01246.9-00 | 120VAC | 65% RH pre-set | CSA |
Technical drawing
- EFR 012 Electronic Hygrostat
