The Electronic Hygrostat EFR 012, part number 01245.9-00, is designed to monitor and control relative humidity within enclosures housing electrical and electronic components. It operates at an AC voltage of 120 V and features an adjustable humidity setting range of 40 to 90 % RH. The device has a switching difference of 5 % RH with a tolerance of ±3 % RH at 25 °C and a reaction time of 5 seconds.
This hygrostat utilizes a change-over contact relay with a service life exceeding 50,000 cycles. It supports a maximum switching capacity of 8 A at AC 240 V and 1.6 A at AC 120 V, with an inrush current capability of 16 A for 10 seconds. The product includes an LED indicator that illuminates when the connected heater is active.
The EFR 012 is mounted via a clip on a 35 mm DIN rail and is housed in a light grey plastic casing compliant with UL94 V-0 standards. It operates effectively within a temperature range of 0 to 60 °C and can be stored in conditions from -20 to 70 °C, with a maximum humidity tolerance of 90 % RH (non-condensing). The device is rated with an IP20 protection type, making it suitable for indoor applications.
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.
| STEGO | |
|---|---|
| Product Category | Moisture Meters |
| Product Number | 01245.9-00 |
| Product Name | Electronic Hygrostat EFR 012 |
| Application | Moisture / Water Content in Gases / Air |
| Variables Measured | Relative Humidity |
| Form Factor | Sensor |
