Time relay is constructed with LM555 timer with start button (ON) and the stop button (OFF) and have accuracy from 1 to 79 seconds.
- length/width - 40 mm- height 17 mm
Wired with 20 cm wires:
Power: + RED, - WHITE. Have protection against reverse supply voltage.
Normally open contact - A and B - soldered wires
Normally closed contact - A and C - need to be solder wires
Power supply - 12V DC
Relay: 15А/125V DC 15A/24V DC or AC 10A/250V AC
Time is adjusted by trimmer PR
Principe of work:
When power is on, the relay is activated and keep this state until end of set time or filing the pulse with button "OFF". By push button ''ON'' - cycle repeat.
Device don't have plastic box, only plate, as see on the picture.
1. Time Relay
2. Instruction for use and wiring diagram.