54221Hi, stop your steps Description:The MRF012 electromechanical humidistat is designed to control enclosure heaters so that the dew point is raised when the critical relative humidity of 65% is exceeded. In this way, condensation and corrosion are effectively prevented. Specifications:Switching difference: 4% RH ( 3% tolerance) Permissible air velocity: 15 m/s Type u: switching Contact resistance:lt; 10mhz Lifespan:gt; 100,000 Cycles Min. Switching Power: 20V AC/DC 100 mA Max. Switching Power: 250 VAC, 5 (1) A DC 20W EMC: acc. For EN 55014-1-2, EN 61000-3-2, EN 61000-3-3 Connection: 3-pole terminal for 2.5mm 2;, 0.5Nm torque mounts max: 2.5mm rigid wire and sup; 2;, twisted wire (with wire end) 1.5mm and sup; 2; Mounting: 35mm DIN rail clip, EN50022 Housing: Plastic according to UL94 V-0, light gray Dimensions: 67x50x38mm Mounting position: variable Operating/storage temperature: 0 to +60c (+32 to +140f) / -20 to +80c (-4 to +176f) Protection type: IP20Note:Item color displayed in photos may be showing slightly different on your computer monitor, because monitors are not calibrated the same. Please allow 1-3mm slight deviation due to manual measurement. Thank you!Package Included:1pc Humidity Controller