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https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl DIY Forum >> Electrical Questions >> Red 440v sockets working while 240v sockets not? https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1401964853 Message started by banjoman on Jun 5^th, 2014, 11:40am

Title: Red 440v sockets working while 240v sockets not?
Post by banjoman on Jun 5^th, 2014, 11:40am

Hi all,
I have a shed wired for 3 phase. All the red 440v sockets are working, however in recent days the standard 3 prong & blue 240V sockets have stopped working. I have a decent knowledge of electrics that I have learned myself. The 240V comes out of the breaker board from a single wire to all plugs, there is one single blue breaker that seems to not have the same spring in it when pushing it. It reads MCG SP632C. I'm not going to repair myself but can anyone indicate what could be wrong? The plugs and wire going to the board seem fine.

Title: Re: Red 440v sockets working while 240v sockets not?
Post by Lectrician on Jun 6^th, 2014, 9:08pm

Could do with a photo of the breaker...

The only thing google finds on that part number search is your post in another forum!

The red sockets are likely 400v(415), and the blues 230v(240).

Can you test for voltage on the output of the breaker?