The electromechanical hygrostat MRF012 is designed to control enclosure heaters to raise the dew point when relative humidity exceeds 65%, thereby preventing condensation. Switching differential: 4% RH (±3% tolerance) Maximum air velocity: 15 m/s Contact type: Change-over Mechanical life: 100,000 cycles Minimum switching capacity: 20 V AC / 100 mA DC Maximum switching capacity: 250 V AC, 5 A (resistive load), 1 A (inductive load); 20 W DC EMC compliance: EN 55014-1, EN 55014-2, EN 61000-3-2, EN 61000-3-3 Terminal connection: 3-pole screw terminal for solid wire up to 2.5 mm² or stranded wire with ferrule up to 1.5 mm²; max. clamping torque 0.5 Nm Mounting: DIN rail clip (35 mm, EN 50022) Housing material: UL94 V-0 rated plastic, light grey Mounting orientation: Any position Operating temperature range: 0 °C to +60 °C (32 °F to 140 °F) Storage temperature range: -20 °C to +80 °C (-4 °F to 176 °F) Protection rating: IP20 Dimensions: 67 x 50 x 38 mm Package contents: 1 x Humidity Controller Note: Slight color variations may occur due to manufacturing batches or display settings; such differences do not affect functionality or performance. Measurement tolerance: ±1–3 cm.