A main technical parameters Rated working voltage: AC380V Rated Frequency: 50HZ life: 1 million times the rated operating current: 10mA DC control voltage: DC: 3-18V DC control current: 2-10mA Ambient temperature: -40 ℃ - + 70 ℃ Relative humidity: ≤90% at 40 ℃ Altitude: ≤2500m Use: non-corrosive gases, no conductive dust, no explosive media presence, the installation site without severe vibration, no wind and rain erosion. Features a built-in microprocessor and intelligent software, intelligent control capacitor switching; products to achieve zero switching, no arc, no inrush current, fast response; on-resistance is zero, no harmonics; no closing inrush current, do not choose limiting reactors, reducing the cost of complete sets of equipment; no heat, can be installed in enclosed cabinets; 1% of micro-power, power consumption to less than the contactor power; simple structure, easy installation, comprehensive cost less than thyristor switch; failure rate, much longer than the life of the thyristor and contactor; wide operating temperature range.