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Mechanical hygrostat - MFR 012


  • Simple installation
  • Change-over contact
  • High breaking capacity

Product description

High humidity in a cabinet produces condensation and corrosion, which often leads to creep currents, flash-over, contact problems, etc.

The difference in temperature between night and day can often be sufficient for condensation to form. To prevent this, besides a thermostat that starts a heater before the set minimum temperature is reached, a hygrostat should also be mounted that starts the heater/fan if the humidity exceeds a set value. MFR012 has a change-over contact and can even be used to control air humidifiers if the air becomes too dry.



MFR 012 Hygrostat, 35-95% RH, change over

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Approvals CE, cULus, EMC, RoHS, UL, UL E164102
Color Light Grey
Contact resistance <10 mΩ
Contact type Currentless open
Control range humidity from 35 % RF
Control range humidity to 95 % RF
Depth 38 mm
EMC EN 55014-1-2, EN 61000-3-2, EN 61000-3-3
Flamklass UL94-V0
Height 67 mm
Humidity Storage <95% RH
Hysteresis Humidity 4% RH
IP Class IP20
Material of body Plastic
Mounting Clip on, DIN rail
Operating Humidity < 90% RH
Operational Temperature 0 °C ... +60°C
Storage temperature -40°C ... +60°C
Weight 0,06 kg
Width 50 mm
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