Feature: 1. 2‑3 pole terminal 2.5mm² wire, 1 is the fire line input line, 2 is the neutral line output line, supports 12‑250V wide voltage input. 2. Back rail slot for easy attachment to 35mm rails. 3. PC material case has high‑quality heat resistance, high impact resistance and other physical and mechanical properties. 4. Excellent electrical insulation, elongation, dimensional stability and chemical resistance. High strength. 5. The purpose of the mechanical humidity controller MFR012 is to control the electric heating so that the dew point raises the relative humidity by more than 65% at a crucial time. In this way, condensation and corrosion are effectively prevented. Specification: Item Type:Humidity Controller Technical Data: 4% Relative Humidity (± 3% Tolerance) Allowable Air Flow Rate: 15m/Sec Contact Type: Conversion Contact Contact Resistance: < 10mOhm Service Life : >100 000 Cycles Exchange Capacity: 20VAC/DC100mA Voltage And Current: 250 VAC, 5 (1) A250V 5(1)A DC 20WDDC 20W Electro Magnetic Compatibility : EN 61000-3-2, EN 61000-3-3 55014-1-2 Connection: 1.5mm 2 - 3-pole terminal 2.5mm², clamping torsion 0.5Nm highest: rigid wire 2.5mm², steel strand (end ferrule with wire) 1.5mm² Installation: 35mm DIN rail, EN50022 Housing: Plastic according to UL94 V - 0, light gray Size:67 x 50 x 38mm / 2.64 x 1.97 x 1.5in Weight: 60 g / 2.12 oz(approx.) Operating/Storage Temperature: 0 To +60°C (+32 To +140°F) / -20 To +80°C (-4 To +176°F) Protection Type : IP20 Approval: CE * At 50% Relative Humidity Package List: 1 x Humidity Controller Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.