electric shower

[cornflake]

i want to fit a mira electric shower ,probably the thermostatic sport model,i have 6mm cable in to the bathroom and have a 40 amp breaker, what is the maximum shower rating i can fit ?

[Ethel]

According to this information from Mira,

9.0 kw

http://www.mirashowers.com/onlinecatalog/pdf/p 3278_4a.pdf

See para2.4

[woodchopper]

There is no way on God's earth I would be using 6mm cable for a 9kw electric shower - An electrician friend of mine recommends 10mm otehrwise you will end up heating up more than the water.
The current load on 9kw -39.1 amps so your breaker size will need increased ( an RCBO ) would be ideal.

Please consult a qualified electrician and not some pratt who thinks they know what they're doing.

A useful guide is pasted below -

http://www.tlc-direct.co.uk/Technical/Charts/V oltageDrop.html

All the best.

[gasman]

i agree with woodchopper as the length of the cable also needs to be considered as to how big it is aswell get a qualified person in PLEASE !!!