The Fotek SSR-40 DA Solid State Relay uses inflaming retarding engineering plastic shell, epoxy resin encapsulation, and screw terminal connection. This series solid state relay has high structural strength, impact resistance, and strong resistance to viability. The low input drives current makes it convenient to connect with the computer terminal and various digital programmable interface circuits. Specifications of Fotek SSR-40 DA Solid State Relay: Model: SSR-40 DA Control Mode : DC-AC Load Voltage: 24-380VAC Load Current: 40A Control Voltage : 3-32VDC Control Current : DC3-25mA Working voltage: 250V On voltage : ?1V One-off Time: ?10ms Off leakage Current : ?2mA Installation Method: Bolt Fixed Working Indication : LED > Package Includes: 1 x  Fotek  SSR-40 DA Relay