Is it possible to connect the hob and oven to one 40A UZO?

Is it possible to connect an oven (3 kW; 3 * 2.5 copper; aut. 16A) and a hob (7.4 kW; 3 * 6 copper; aut. 32A) for one UZO (40A, 0.03). Is such a scheme efficient? Thank.

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Posted: Updated: 01.04.2018 1 comment
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  • Admin
    04/01/2018 at 23:02

    The RCD must be selected for the rated current based on the total load of these wiring lines. 32 A + 16 A = 48 A. That is, a 40 A RCD will be overloaded simply at the rated current of the machines. In the case of a small overload, the thermal releases of the machines do not work immediately, depending on the size of the overload, they can operate for up to an hour without working, so the RCD can be subjected to even more overload, that is, the RCD must be selected at a rating higher than the rating of the machine. That is, for these lines you need to set the RCD to 63 A. Or, on each line, a separate ouzo - at 25 A (where the machine is 16 A) and 40 A (where the machine is 32 A).

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