The electromechanical hygrostat MRF012 is designed to control enclosure heaters to raise the dew point when a critical relative humidity of 65% is exceeded, thereby preventing condensation and corrosion. Specifications: Switch difference: 4% RH (±3% tolerance) Permissible air velocity: 15 m/s Contact type: change-over contact Electrical endurance: 100,000 cycles Minimum switching capacity: 20 V AC / 100 mA DC Maximum switching capacity: 250 V AC, 5 (1) A / 20 W DC EMC compliance: EN 55014-1, EN 55014-2, EN 61000-3-2, EN 61000-3-3 Connection: 3-pole terminal for 2.5 mm² solid wire (clamping torque max. 0.5 Nm); for stranded wire with ferrule: 1.5 mm² Mounting: DIN rail clip (35 mm, EN 50022) Housing material: UL94 V-0 rated plastic, light grey Dimensions: 67 × 50 × 38 mm Mounting orientation: variable Operating temperature range: 0 °C to +60 °C Storage temperature range: −20 °C to +80 °C Protection rating: IP20 Package includes: 1 × Humidity Controller