Electrical Device Identification, Electrical installation work?

[divobtech]

Please can someone tell me what is the useful of this device, and its name also
thanks in advance,

 

[telectrix]

looks like it might be an overload

 

[Pete999]

Yep think your'e right

 

[divobtech]

perhaps a timer clock also ??? :/

 

[Lucien Nunes]

I'm not convinced, although I can't see very much on this little screen and I can't read what's written on it. It has one input and one output, but the power circuit doesn't go through it. Are you thinking it has an external CT with a single output? To the left is what seems to be a phase loss / sequence detection relay. I wish I could read the symbols.

 

[jimmymac]

Looks like a ferbilator to me

 

[divobtech]

Lucien Nunes Please click on link to get enlarge the picture, but unfortunately the image is little blur try it despite all, thanks

https://m1xwja.dm2301.livefilestore...OhikoFgidbLtmfHbyF4MZtV5UpIjw/pico.jpg?psid=1

 

[Lucien Nunes]

Just come back to this again and noticed the control circuit doesn't seem to leave the box, only two 4-core cables that look like a TP+N power circuit. I'm going to guess it is a voltage sensing relay, which in tandem with the phase sensing relay energises the contactor to energise a load when the supply is within limits. The aux contacts on the contactor perhaps bypass one or other condition according to whether the load is already energised.

I wonder whether the furry bits visible underneath indicate the system is intended to be supplied by a generator? OP: what is the application of this unit? Can you post a picture that shows the schematic symbols and terminal numbers on the front of the device? Do you think it is faulty?

 

[ian.settle1]

Why don't you go to the Legrand web site and input the number on the front next to the Legrand logo

 

[divobtech]

Lucien Nunes It it use on a 3-phase supply air conditioning unit, 24000BTU

 

[Lucien Nunes]

Because I can't read it. Is it 374 85? Doesn't find anything for me. 874? 95?...

 

[divobtech]

I think that, this is an old device, on legrand web site the identification code of the device is not available.

 

[ipf]

Can only guess from the info
Don't know the required cable colours in Mauritius, but it looks like blue is one of the outgoing phases.

 

[divobtech]

there, is a mistake in this installation, in Mauritius colour code for 3 phase supply is brown,black, grey and blue for neutral.

 

[telectrix]

do trhe furry legs dance when you push in the contactor?