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Supply options for hot food counter installation

hertzal123

I have been asked to wire a set of 4 hot counters ,each comprising a heated cupboard,,heated well and heat lamps on a gantry over each unit.

The units are all joined together and are fed from a built in 3 phase board.All elements and stats to be fitted in the workshop.

I can see 2 possible ways to wire this.

A:Fit 3 mcbs in each unit and run 1 cable back to mcb board,4 cables in total.Disadvantage,mcb in board in series with mcbs in each unit.

B:Run 3 cables to each unit supplied from mcb board(with suitable warning labels)No mcbs inside units,but 12 cables/circuits required.

Thought that option B was the correct procedure but would welcome any advice.

                                                                                              Regards,

                                                                                                     Hz

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    I'm not sure I've got a mental picture of the size/ratings of all this, but how about HBC fuses feeding the in-built DB? Depending on manufacturer and ratings you can often get a 63A BS 88 to discriminate with MCBs, maybe lower if the MCBs are small.

      - Andy.

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  • 0

    I'm not sure I've got a mental picture of the size/ratings of all this, but how about HBC fuses feeding the in-built DB? Depending on manufacturer and ratings you can often get a 63A BS 88 to discriminate with MCBs, maybe lower if the MCBs are small.

      - Andy.

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