Mechanical Hygrostat
Product name : Mechanical Hygrostat
Item : MFR 012
Details :
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- 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.
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Technical Data
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Switch difference*
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4% RH (±3% tolerance)
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Permissible air velocity
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15m/sec
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Contact type
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change-over contact
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Contact resistance
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< 10mOhm
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Service life
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> 100 000 cycles
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Min. switching capacity
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20V AC/DC 100 mA
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Max. switching capacity
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250 VAC, 5 (1) A
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DC 20W
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EMC
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acc. to EN 55014-1-2, EN 61000-3-2, EN 61000-3-3
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Connection
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3-pole terminal for 2.5mm², clamping torque 0.5Nm max.: rigid wire 2.5mm², stranded wire (with wire end ferrule) 1.5mm²
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Mounting
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clip for 35mm DIN rail, EN50022
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Casing
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plastic according to UL94 V-0, light grey
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Dimensions/ weight
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67 x 50 x 38mm approx. 60g
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Fitting position
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variable
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Operarting/Storage temperature
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0 to +60°C (+32 to +140°F) / -20 to +80°C (-4 to +176°F)
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Protection type
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IP20
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Art. No.
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Setting range
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*at 50% RH
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01220.0-00
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35 to 95% RH
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Example of Connection
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Thermostat & Heater 
Switching Power Supply 
