Where to buy replacement MCB (circuit breaker) - Motorhome Forums, Motorhome Discussion, Motorhome Chat

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post #1 of 5 (permalink) Old 16-01-2009, 21:39 Thread Starter
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Where to buy replacement MCB (circuit breaker)

On my last trip, one of my circuit breakers failed.
The writing on it is: F&S, C45N, C6, 415V, IEC898, 6KA
Basically, it appears to be a double-pole 6A RCD earth breaker.

Clearly being away from the web has taken its toll as I can't find where to get a replacement from! I actually want the same but a 10A version (I know they exist as I have one next to the failed 6A )

Any ideas on suppliers? eBay and screwfix don't have it. Maybe http://www.tlc-direct.co.uk/Products/CM9810C.html?

Also - are the numbers/letters *that* relevent? Or will any 240v (or above) 10A RCD breaker the same size do? What is the difference between types B, C and D? (Believe my failed one is "C" e.g. C6, so C10 would be the replacement?)

Ho hum - a new area to learn!

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post #2 of 5 (permalink) Old 16-01-2009, 21:57
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Try Maplins or RS Components, they do everything,
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post #3 of 5 (permalink) Old 16-01-2009, 22:04
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Any electrical retailer (not the Curry/Comet type), some DIY stores will have RCB's -- or the more specialist stores such as RS Components and Farnells.

The type C and type D are what is called "motor rated" so they don't trip when a high inrush current is demanded, (leccy motors need a high current to start turning but only for a short duration). Did you get random tripping of the failed RCB when switching on an appliance?.

If you plan to use a vacuum cleaner/drill/lathe/fridge/hairdryer on the sockets protected by the failed RCB go for C or D type. D are more tolerant than C.

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post #4 of 5 (permalink) Old 16-01-2009, 22:31 Thread Starter
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Thanks for explanation
Maplin don't
No RS or Farnell shop near me.
Found some on fleabay though I'll try first.
I'll get C. For the record - "I DO NOT USE A HAIR DRYER OR VACUUM CLEANER". (Mel does )
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post #5 of 5 (permalink) Old 16-01-2009, 22:40
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RCD earth breaker

Only if it has a TEST button.

Otherwise it is just a fancy fuse.
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