Fangrui Product Details The Electromechanical Hygrostat Mrf012 Is Designed To Control Enclosure Heaters, So That The Dew Point Is Raised When A Critical Relative Humidity Of Is Exceeded. In This Way Condensation And Is Effectively Prevented. Switch Difference: Rh ( Tolerance) Permissible Velocity:15m/sec Contact Type:change-over Contact Contact Resistance:100 000 Cycles Min.switching Capacity:20v Ac/for Dc 100 Ma Max.switching Capacity:250 Vac, 5 (1) A For Dc 20w Emc:acc.to En 55014-1-2, En 61000-3-2, En 61000-3-3 Connection:3-pole Terminal For 2.5mm;, Clamping Torque 0.5nm Max.: Rigid Wire 2.5mm;,stranded Wire (with Wire End Ferrule) 1.5mm; Mounting:clip For 35mm Din Rail, En50022 Casing:plastic According To Ul94 V-0, Light Grey Fitting Position:variable Operarting/storage Temperature:0to +6+32to +140/-20to +80-4to +176 For Protection Type:ip20 Note:due To Different Production Batches, There May Be Slight Color Difference Or Difference In The Actual Product, Which Not Affect The Use.