This version switches on and stays on for the timed period when the switch feed is turned off.
This could be to delay the switching off of headlights and interior light - useful for when you arrive home in the dark. You could also use it for a timer relay on a momentary switch.
Adjust the delay time by removing the little rubber plug in the relay and turning the trimming resistor.
The semi-transparent relay case also has a red LED inside which illuminates when the timed output is on.
Maximum load 25 Amp.
NOTE. A short Red and Black cable with a diode is supplied to prevent voltage backfeed in certain installations.
Terminal 15 - Switched +
Terminal 30 - + 12v
Terminal 31 - Earth
Terminal 87a - Permanent N/C output
Terminal 87 - When live supplied to 15 switches over for timed period then back to 87a until switched live remove + reapplied.