This is my panel at home. I live in the Philippines. We only use 240V. We never get inspection. I need to add a special state of the art Siemens Gfci 2-pole breaker with automatic self-test feature that I couldn't find in 240v outlet version. Not even the RCDs in any European country has the UL advanced auto self-test feature.
I will just put the following Siemens QF260A GFCI 2-pole breaker at the bottom of the above panel board.
Can anyone share how I can connect the plug in portion.. like maybe is there a standalone connector (without needing panel) that I can use so I can connect it to the wire that will be tapped to one of the existing breakers output in the panel (imagine 2 breakers in series). Or what is the smallest single breaker panel I can use that is compatible with the breaker. Is the plug in portion of the Siemens standard?
For European users. You can adapt this too to your country 230v system and take advantage of the very advanced self-test feature available only in US GFCI where you no longer have to worry the sensing part of the circuit would suddenly cease to function. When it does after say 16 years, the breaker will just cease to function and lock itself out.