The electromechanical hygrostat MRF012 is designed to control enclosure heaters to raise the dew point when a critical relative humidity of 65% is exceeded, effectively preventing condensation and corrosion. Specifications: - Switch difference: 4% RH (±3% tolerance) - Permissible air velocity: 15 m/s - Contact type: change-over contact - Contact durability: 100,000 cycles - Minimum switching capacity: 20 V AC / 100 mA DC - Maximum switching capacity: 250 V AC, 5 A (1 A resistive load for DC 20 W) - EMC compliance: EN 55014-1, EN 55014-2, EN 61000-3-2, EN 61000-3-3 - Connection: 3-pole terminal for 2.5 mm² wire; clamping torque 0.5 Nm max.; accepts solid wire up to 2.5 mm² or stranded wire with ferrule up to 1.5 mm² - Mounting: clip for 35 mm DIN rail (EN 50022) - Housing material: UL94 V-0 rated plastic, light grey - Dimensions: 67 x 50 x 38 mm - Installation position: variable - 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 Note: The color of the item in photos may appear slightly different on your monitor due to variations in screen calibration. Slight dimensional variations of 1–3 mm may occur due to manual measurement. Package includes: 1 x Humidity Controller