The EVD400 driver controls the electronic expansion valve in a refrigerant circuit.Its control function is achieved by optimising the opening of the valve using a PID algorithm.Power supply: 20 to 28 Vac or 23 Vdc 50/60 HzProtocol: tLANCompatible Valves: Carel ExV, Sporlan SEI 0.5-20, Sporlan SEI 30, Sporlan SEH 50-250, Alco EX5-EX6, Alco EX7, Alco EX8 330 step/s, Alco EX8 500 step/s, Danfoss ETS-25/50, Danfoss ETS-100, CAREL E2V*P, Danfoss ETS-250/400Assembly: DIN railDimensions: 70 x 110 x 60Total of 9 Inputs/OutputsIndex of protection: IP20Resistance to heat and fire: category DImmunity against voltage surges: category 1