Using double pole RCD

[Jako13!]

Is there anything preventing us from using these type of RCDs for a 55-0-55 circuit?

the picture shows the original set up.

 

[Jako13!]

Is there anything preventing us from using these type of RCDs for a 55-0-55 circuit?

the picture shows the original set up.

Thanks guys in advance

 

[snowhead]

Have you looked closely at what the original setup actually is, that you are suggesting replacing with just an RCD?

 

[Jako13!]

Have you looked closely at what the original setup actually is, that you are suggesting replacing with just an RCD?

Yeah it’s trace heating on pipe work

 

[pc1966]

You would have the check the new RCD specification works on 110V as well, the trip electronics might not function if seriously under-volt.

 

[hasel5]

Thats a double pole MCB and a shunt RCD so no the above is not compatible

 

[westward10]

Thats a double pole MCB and a shunt RCD so no the above is not compatible

Does the same thing though.

 

[hasel5]

A rcbo would not that RCD

 

[westward10]

A rcbo would not that RCD

Sorry my error wasn't paying attention ?

 

[Lucien Nunes]

OP perhaps you can clarify. Are you proposing to use the RCD to replace the Vigi residual tripping actuator but leave the original DP MCB in service, or what?

 

[Jako13!]

I suppose my question wasn’t clearly explained sorry for my mistake. The question I really wanted to ask is really other than the fact the RCD in the photo is mechanical interlocked with the D1 breaker would the RCD function for a 55-0-55 supply. I know normally we’d L-230v
N-0v Also am I being silly here but if you could get a RCBO that size could that be fitted? Also what is the reason for this kind of set up overload protection and additional protection?

 

[i=p/u]

I remmber testing them in 110v boards for controlling 110v sockets in pumping stations and the likes..