Yueqing Winston Electric Co., Ltd.
Main products:sensor,smps,soft start,frequency converter,ac contactor
Contact Us
  • Contact Person : Mr. Wong Kobe
  • Company Name : Yueqing Winston Electric Co., Ltd.
  • Tel : 0086-577-27852809
  • Fax : 0086-577-27875159
  • Address : Zhejiang,Wenzhou,Changhong Industrial Zone,Liushi Town,Yueqing
  • Country/Region : China
  • Zip : 325604

MFR 012 Mechanical Hygrostat

MFR 012 Mechanical Hygrostat
Product Detailed
MFR 012 Mechanical Hygrostat Adjustable relative humidity change-over contact,high switching capacity Easy using clip fixing

MFR 012 Mechanical Hygrostat 


Adjustable relative humidityChange-over contact

High switching capacityEasy usingClip 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.

2.Technical Data

Switch difference*4% RH (±3% tolerance)
Permissible air velocity15m/sec
Contact typechange-over contact
Service life> 50,000 cycles
Min. switching capacity20V AC/DC 100 mA
Max. switching capacity25VAC, 5A
 DC 20W
Connection3-pole terminal for 2.5mm², clamping torque 0.5Nm max.: rigid wire 2.5mm², stranded wire (with wire end ferrule) 1.5mm²
Mountingclip for 35mm DIN rail, EN60715
Casingplastic according to UL94 V-0, light grey
Dimensions67 x 50 x 38mm
Weightapprox. 60g
Fitting positionvariable
Operarting/Storage temperature0 to +60°C (+32 to +140°F) / -40 to +60°C (-40 to +140°F)
Operating / Storage humiditymax. 90 % RH (non-condensing)
Protection typeIP20
ApprovalsUL File No. E164102
*at 50% RH 

Art. No.Setting range
01220.0-0035 to 95% RH




4.Example of connection:






MFR 012 Mechanical Hygrostat

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