Datasheet

The electromechanical thermostat 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.
Art. No. Setting range
01220.0-00 35 to 95% RH
Technical Data
Adjustable relative humidity
Change-over contact
High switching capacity
Easily accessible terminals
Clip fixing
Regulating and Monitoring
35
||
Mechanical Hygrostat MFR 012
Switch difference* 4% RH (± 3% tolerance)
permissible air velocity 15m/sec
Contact type change-over contact
Contact resistance < 10m
˜
Service life > 50,000 cycles
Min. Switching capacity 20V AC/DC, 100mA
Max. Switching capacity 250VAC, 5 (0.2) 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
Operating / 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
++ STEGO Norden AB + Box 4111 + Jarlabergsvägen 2, 2tr + SE-131 04 Nacka + Sweden + [e-mail] + www.stegonorden.se ++
Specifications are subject to change without notice. Errors and omissions excepted. Suitability of this product for its intended use and any associated risks must be determined by the end customer/ buyer in its final application. 15.02.2007