Mechanical Hygrostat MFR 012

Mechanical Hygrostat High switching capacity Adjustable relative humidity range DIN rail mountable

Mechanical Hygrostat MFR 012

High switching capacityAdjustable relative humidity rangeDIN rail mountableThe MFR 012 is designed to control the relative air humidity inside of enclosures.  When connected to an enclosure heater, (de-humidifier), it will turn the heater on at the set humidity level in order to raise the dew point.  This helps prevent damage and malfunction of electronic components caused by condensation and corrosion.1) The MFR 012 can also be used to control cooling fans, warning lights or other devices.

Technical Data

Adjustment range: 35 - 95% (± 3.0%)relative humidity

Switch difference*	Approx. 4% RH @ 50% relative humidity
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
EMC	acc. to EN 55014-1-2, EN 61000-3-2, EN 61000-3-3
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, EN50022
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

*at 50% RH