Time Delay RCD's are typically used when two RCD's are installed in series. The time delayed RCD allows for discrimination. For example, in the event of a fault, only the upstream RCD should trip.
A suitably rated RCBO/RCD device may also be required in the final circuit to provide the correct level of protection whilst avoiding unnecessary tripping. Always consult wiring regulations or an electrical contractor to be sure.
Users of this product assume responsibility for the correct design and installation of their EVSE. Consult manuals or an electrical contractor if needed.Ecoharmony will not be held liable for injury to living creatures nor damage to property arising from incorrect use of this product.