Socket with timer, ideal for soldering irons

Socket with timer, ideal for soldering irons.
Every now and then I forget to turn off my soldering iron.
I used a staircase timer relay.

Parts:
A time relay (taken apart for DIN rail e.g.:)
One button (ca. 24 x 19 x 19 mm)
cord
solder
supply cable
BUSCH-JAEGER 2300-01 EAP-09-500 SCHUKO