Once you handle this relay, the model 7.4.1.7-2 helps you avoid mix-ups with similar looking units.
Minilec S2 CMR4 Earth Leakage Relay
You will find that the override switch is snug on the unit, so it does not snag on cables.
Having a timer on this relay means you can automate turning things off after a set time.
This protection relay fits most enclosures, and it helps keep your setup protected without taking up much space.