1.simple installation2.easy maintenance3.fase response4.switch without inrush current5.phase lack protection6.noise free7.stable Working conditions:Ambient air temperature: -25-+50 degree, the average temperature should not exceed +30 degree in 24h.The relative humidity can reach 100% in short time at +25 degree.Altitude should not exceed 2000m.The installation site should be with clean air, ...
