MFR 012
Mechanical Hygrostat MFR 012
- Adjustable relative humidity
- Change-over contact
- High switching capacity
- Easily accessible terminals
- Clip fixing
The electromechanical hygrostat MRF 012 is designed to control enclosure heaters so that the dew point is raised when a critical relative humidity of 65% is exceeded. In this way condensation and corrosion is effectively prevented.
Technical Data
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| Switch difference* | 4% RH (±3% tolerance) |
| Permissible air velocity | 15m/sec |
| Contact type | change-over contact |
| Contact resistance | < 10mOhm |
| Service life | > 100 000 cycles |
| Min. switching capacity | 20V AC/DC 100 mA |
| Max. switching capacity | 250 VAC, 5 (1) A |
| DC 20W | |
| Connection | 3-pole terminal for 2.5mm², clamping torque 0.5Nm max.: rigid wire 2.5mm², stranded wire (with wire end ferrule) 1.5mm² |
| Mounting | clip for 35mm DIN rail, EN60715 |
| Casing | plastic according to UL94 V-0, light grey |
| Dimensions | 67 x 50 x 38mm |
| Weight | approx. 60g |
| Fitting position | variable |
| Operarting/Storage temperature | 0 to +60°C (+32 to +140°F) / -20 to +80°C (-4 to +176°F) |
| Protection type | IP20 |
| Approvals | VDE and UL submitted |
*at 50% RH
| Art. No. | Setting range |
| 01220.0-00 | 35 to 95% RH |
Technical drawing
