wylex 45A mcb?

billy-w · Feb 7, 2010

Hi,does any one know if wylex do a 45A mcb, i have a 10.5kw shower to fit next week, the cu is 17th edition wylex so quite new, i can't for the life of me find one. Failing that is there another make that i could use?

Cheers.

saveloy · Feb 7, 2010

Don't think they make one. Can't you use a 50A. 10.5kw will be just over 45A anyway. 10500/230= 45.65.

Guest123 · Feb 7, 2010

50 Amp Wylex MCBNSB50

NSB mcb's designs are subject to change
MCB's may differ slightly on new purchases and from existing mcb's
but are all interchangeable

MCB terminal capacity, </B>25 mm on all mcb's

Wylex-NSB MCB ( Type B )
Rated 50 Amps

General Domestic Consumer Unit use

Wylex NSB MCB's detect overcurrents due to both overload and fault currents.
The MCB will operate and interrupt the supply to prevent damage to the installation.

Wylex NSB Domestic MCBs have a short circuit breaking capacity of 6000A (M6).
The current carrying capacity of the cable should always exceed the current rating of the MCB to prevent damage.

The operating dolly may be locked in either the ON or OFF position without affecting the ability of the trip mechanism to operate.
When in the off position, a contact gap of 4 mm is achieved. Wylex NSB MCBs may therefore be used as single pole isolating switches where appropriate.

billy-w · Feb 7, 2010

Cheers lads, i was starting to lean towards 50a mcb but thought it might be me going blind.

dufjax · Feb 7, 2010

Is there an RCD protecting the shower.... You NEED one just in case, don't want to go frying customers

Jim

billy-w · Feb 7, 2010

There is thanks Jim, the consumer unit is up to date with RCD's.....the rest could do with updating though.

SirKit Breaker · Feb 7, 2010

I would fit a 40a one. a B type MCB will run at 5 times rated current for a lot longer than it takes to have a shower. I Have fit loads with no problems. Nothing wrong with 50, its just my opinion.

Cheers..........Howard