Has any one ever seen this before? Unknown Plug and Socket - 500V, 63/75A rated

[hoiler3]

Has anyone got any info on this plug/socket make and brand?

I;m just curious as i have not seen them before...

one give away marking is that M type symbol that is on both plug and socket.

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thanks for any help

Charles.

 

[Dean Williams]

it looks like an old Reyrolle commando plug

 

[snowhead]

Martin Lunell

 

[MDJ]

seen lots of them, what's the problem?

 

[Marvo]

Martin Lunell

I was just about to say that.

 

[hoiler3]

Martin Lunell

Thanks!

 

[hoiler3]

it's just that for a while now i have been trying to track down who made them, so i could tell a friend who works in a theater, and they still use these plugs on their lighting power distribution, even though i suspect they should be replaced

 

[Brightspark2]

Was just about to say looks like for TV/Theatre/Film lighting...

 

[Engineer54]

That takes me back a good few years, ....Installed hundreds of those M Lunell socket outlets as an apprentice, ours were mainly of the 3 phase variety. Where you push the plug in and turn them (clockwise i think) as they were switch sockets. Ours had an orange button to switch off and/or to remove the plug-top... Damned good sockets they were too!!

I think but i'm not sure, that they are still made, pretty sure Legrand took them over...

 

[Rockingit]

it's just that for a while now i have been trying to track down who made them, so i could tell a friend who works in a theater, and they still use these plugs on their lighting power distribution, even though i suspect they should be replaced

Having worked in literally hundreds of theatres etc - have never seen these employed anywhere. Standard Ceeform / Commando plugs and sockets are used to the standard sizes of 16/32/63 & 125 in 1ph and 3ph (5 pin). Occasionally you might find some yellow 4pin which is used for motor winch control, likewise red 4pin which is 32A motor 3ph power - but they are more touring standards and the controller unit would just have a standard 32 5pin on it.

I would check very carefully before you launch out - from memory lots of modern standard Lewden plug/sockets have a sort of M styled logo on them that might be confusing you. If you really do have Lunell turn and click installed then I can only think that it was a mistake by the original installation contractors/someone trying to design a theatre and not having a clue - it's never been a standad that I'm aware of even from times past.

Now, if you'd have asked why you were in a theatre looking at thousands of 15a round pin, that would be a different matter........

 

[GLENNSPARK]

Lewden used to make em....
rough service plugs/trailing sockets...

 

[hoiler3]

Having worked in literally hundreds of theatres etc - have never seen these employed anywhere. Standard Ceeform / Commando plugs and sockets are used to the standard sizes of 16/32/63 & 125 in 1ph and 3ph (5 pin). Occasionally you might find some yellow 4pin which is used for motor winch control, likewise red 4pin which is 32A motor 3ph power - but they are more touring standards and the controller unit would just have a standard 32 5pin on it.

Well from what i could gather is that the installation might have been before Standard Ceeform / Commando plugs were around.

I'm thinking now that i will recommend to him get the whole thing overhauled and modernized anyway, as some of the rubber around the plugs is beginning to degrade somewhat.

 

[Engineer54]

Having worked in literally hundreds of theatres etc - have never seen these employed anywhere. Standard Ceeform / Commando plugs and sockets are used to the standard sizes of 16/32/63 & 125 in 1ph and 3ph (5 pin). Occasionally you might find some yellow 4pin which is used for motor winch control, likewise red 4pin which is 32A motor 3ph power - but they are more touring standards and the controller unit would just have a standard 32 5pin on it.

I would check very carefully before you launch out - from memory lots of modern standard Lewden plug/sockets have a sort of M styled logo on them that might be confusing you. If you really do have Lunell turn and click installed then I can only think that it was a mistake by the original installation contractors/someone trying to design a theatre and not having a clue - it's never been a standad that I'm aware of even from times past.

Now, if you'd have asked why you were in a theatre looking at thousands of 15a round pin, that would be a different matter........

Mainly used on the industrial and commercial side of things. If i remember rightly, we used these socket outlets for all of our company kitchens sockets (and there were a good few kitchens on our industrial site too).

Unlike the photo's shown above, all our plug tops were metal, complete with stuffing gland...

 

[Rockingit]

Well from what i could gather is that the installation might have been before Standard Ceeform / Commando plugs were around.

I'm thinking now that i will recommend to him get the whole thing overhauled and modernized anyway, as some of the rubber around the plugs is beginning to degrade somewhat.

Two words of caution: Pandora's Box!! This is my specialist area, feel free to ask.

 

[Rockingit]

Mainly used on the industrial and commercial side of things. If i remember rightly, we used these socket outlets for all of our company kitchens sockets (and there were a good few kitchens on our industrial site too).

Unlike the photo's shown above, all our plug tops were metal, complete with stuffing gland...

My guess is that some municipal contractor got the job of wiring it back when, and not knowing better just used the same approach. I see it all the time, big boy contractors who do work in council owned venues and have no idea of the needs of a specialist area of work. I seem to remember a thread on here ages ago where someone couldn't work out why they shouldn't IR test a 3kw dimmer rack as it was 'part of the distribution network'. Probably doesn't work now, so at least they made it safe.