ELECTRONIC TIMER, OFF-DELAY,3~30 Secs

After power-up and closing of the control contact C, the output R closes. When control contact C re-opens, timing T starts. At the end of the timing period, the output(s) R revert(s) to its/their initial state. The second output can be either timed or instantaneous.

User Manual:

Schneider Electric_Harmony-Time_RE8RA31BTQ