13A Latching RCD Switched Spur - IP66
There are 2 types of RCD - Latching and Non-Latching;
also termed active and passive. Both types are accepted by
British Standards and it is up to the user to choose the type of RCD most suitable for their application.
NON-LATCHING (active) RCDs switch off when the power to them is turned off. Every time supply to the RCD is interrupted it will trip and will need to be reset.
LATCHING (passive) RCDs remember the state they were in prior to the power being switched off.