Hagar AFDD problem

[newfutile]

we have had installed some Hagar ARM932U Arc Fault Detection Device in one of our care homes.
they had reported tripping issues , so i tried to do an (RCD) Residual Current Device test.
it wont trip at any current.
looking it up it seems they are not also an rcbo . if so whats the point of them.
also if so they should not have been installed i think
has anyone else come across similar issues?
i have contacted Hagar for confirmation.

 

[westward10]

Seems like a new device from Hager which doesn't incorporate the RCD.

 

[Yellowhammer]

The part # would suggest it's an MCB/AFDD. No RCD function.

 

[PS Electrics]

has anyone else come across similar issues?

Watch the David Savery video's on YT he has done a few on AFDD's and also a rift with Hager.

ARM932U is the MCB model

ARR932U is the RCBO model

Possibility the wrong one was ordered? Though the MCB model is a double module so would have thought that would have flagged it.

 

[newfutile]

thanks for the confirmation this is what i thought.
i cant think of what use this device is .
i have seen David Saverys Arc Fault Detection Device testing videos most interesting