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7,300 Watts supplied on a 2.5mm2 T&E.

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Yes a 2.5mm2 T&E cable can supply a 7,300 Watt instantaneous water heater at 240 Volts. I came across this today. The supply was from a B32 M.C.B. So why do we use bigger cable than 2.5mm2 if it will do the job?

The run was about 5m maximum. 

Z.

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    Some years ago I found 9.5 kW shower on a 2.5 mm T&E hanging loose in an airing cupboard, I let the shower run for several minutes then told the customer to feel the cable, she said “If I’d know I could have dried my knickers on it”.

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    Some years ago I found 9.5 kW shower on a 2.5 mm T&E hanging loose in an airing cupboard, I let the shower run for several minutes then told the customer to feel the cable, she said “If I’d know I could have dried my knickers on it”.

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