Product Name : Time Relay w Base;Type : AH3-3;Coil Voltage : 12V DCContact Type : DPDT;Contact : 5A 250VAC Resistive Load;Time Range : 0-30 SecondsNumber of Terminals : 8;Mount Rail Type : DIN Rail;Mount Hole Diameter : 4mm/ 0.157"Mount Hole Distance : 33mm/ 1.3"(Center to Center);Total Size (Approx.) : 55 x 40 x 87mm/ 2.2" x 1.6" x 3.4"(L*W*H);Color : As Picture ShownNet Weight : 118gPower on delay, plus timing. With large transparent time setting knob for setting time easily, 8 pin solder terminal for installation. Time Delay Relay used in industrial automation system and mechanical equipment to delay component. Relay is a kind of automatil electric switch, when supply with an input value, like electric, magnetic, light or thermal signal, it wall transfer the controlled circuit automatically and make an abrupt change, when the input value decreased to certain degtee, it will resume to former state and make the controlled circuit back to the former stare. Features LED indicator show power and output status.Package Content : 1 x Time Relay1 x BaseNote:Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.