The electronic hygrostat DCF 010, part number 01012.0-20, controls DC loads such as fans and signal devices using a normally open MOSFET switch. It operates between 20 V and 56 V DC, with a humidity setpoint range of 40% to 90% rF and a switching differential of 4% rF (±1% tolerance). A fixed secondary switch activates at 5 °C (41 °F). The unit includes a 2 m external sensor with snap-in connector and an LED indicator. It is mounted on a 35 mm DIN rail, has a UL94 V-0 plastic case, and measures 3.7 in × 2.1 in × 1.7 in. The switch rating is 15 A DC with a 24 A inrush current for 10 seconds. Service life exceeds 100,000 cycles. Connections accept stranded wires up to 2.5 mm² (AWG 12). IP20 protection is provided.
The electronic DC hygrostat with integrated switch module is used to control heating and cooling equipment, filter fans or signal devices through the relay. The hygrostat measures the relative humidity and can switch a signal current via an internal relay. The external sensor can be positioned freely anywhere in the control cabinet for precise measurement of the atmospheric humidity. Additionally, this hygrostat is available in versions that not only measure the relative humidity via the external sensor, but also the temperature.
| Switching difference (humidity) | 4 % RH (±1 % tolerance) at +77 °F (+25 °C), 50 % RH |
|---|---|
| Reaction time | approx. 5 sec. |
| External sensor | cable 2 m with snap in connector (included in the delivery) |
| Contact type | contact maker NO (MOSFET) or contact breaker NC (MOSFET) |
| Service life | > 100,000 cycles |
| Operating voltage | DC 20 to 56 V |
| Optical indicator | LED |
| Connection | 6-pole terminal: stranded wire
1 AWG 16 (1.5 mm²); |
| Mounting | clip for 35 mm DIN rail, EN 60715 |
| Housing | plastic, UL 94V-0, grey (bicolor) |
| Dimensions | 3.7 x 2.1 x 1.7" (93 x 53 x 44 mm) |
| Weight | approx. 4.2 oz. (120 g) incl. sensor |
| Mounting position | vertical |
| Storage temperature | -40 to +176 °F (-40 to +80 °C) |
| Operating/Storage humidity | max. 90 % RH (non-condensing) |
| Protection type | IP20 |
| Approvals | UL File No. E164102, VDE, EAC |
| STEGO | |
|---|---|
| Product Category | Thermal Switches and Thermal Protectors |
| Product Number | 01012.0-20 |
| Product Name | Electronic Hygrostat DCF 010 |
| Switch Type | Normally Open, NO; Normally Closed, NC |
| Set Point/ Switch Point | Multiple Set Points |
| Mounting/Configuration | Surface Mount |
