An electrical system for managing the electrical loads of a household appliance, characterised in that it includes a power module including: - at least two control modules (11A, 11B), each control module (11A, 11B) being configured to control the operation of at least one electrical load and to be powered by a phase (1, 2) of an electrical distribution network, - an electric power supply module configured to generate a low-voltage internal power supply from the power supply received from a phase (1, 2) of the electrical distribution network to supply said at least two control modules (11A, 11B) with electrical energy, - control means configured to cut off the power supply originating from a phase (1, 2) of the electrical distribution network, to said at least two control modules (11A, 11B) when the household appliance is in the standby state, and - switching means (15A, 15B) arranged respectively between the phases (1, 2) and the control modules (11A, 11B) and configured to be controlled by the control means, the control means being configured to cut off the power supply of the control modules (11A, 11B) by means of said switching means (15A, 15B), the electrical management system further including at least one additional power module including: - at least one control module configured to control the operation of at least one electrical load and to be powered by a phase of the electrical distribution network, - an electric power supply module configured to generate a low-voltage internal power supply from the power supply received from a phase of the electrical distribution network to supply said at least one control modules of said additional power module with electrical energy, - control means powered by a power supply signal originating from said electric power supply module of said power module, said control means being configured to cut off the electric power supply of said electric power supply module and of said control module of said additional power supply module when the household appliance is in a standby state; and - switching means arranged between the phase and the electric power supply module and the control module of said additional power supply module and being controlled by said control means, the control means being configured to cut off the power supply of the electric power supply module and of the control module of said additional power supply means by means of said switching means. - at least two control modules (11A, 11B), each control module (11A, 11B) being configured to control the operation of at least one electrical load and to be powered by a phase (1, 2) of an electrical distribution network, - an electric power supply module configured to generate a low-voltage internal power supply from the power supply received from a phase (1, 2) of the electrical distribution network to supply said at least two control modules (11A, 11B) with electrical energy, - control means configured to cut off the power supply originating from a phase (1, 2) of the electrical distribution network, to said at least two control modules (11A, 11B) when the household appliance is in the standby state, and - switching means (15A, 15B) arranged respectively between the phases (1, 2) and the control modules (11A, 11B) and configured to be controlled by the control means, the control means being configured to cut off the power supply of the control modules (11A, 11B) by means of said switching means (15A, 15B), - at least one control module configured to control the operation of at least one electrical load and to be powered by a phase of the electrical distribution network, - an electric power supply module configured to generate a low-voltage internal power supply from the power supply received from a phase of the electrical distribution network to supply said at least one control modules of said additional power module with electrical energy, - control means powered by a power supply signal originating from said electric power supply module of said power module, said control means being configured to cut off the electric power supply of said electric power supply module and of said control module of said additional power supply module when the household appliance is in a standby state; and - switching means arranged between the phase and the electric power supply module and the control module of said additional power supply module and being controlled by said control means, the control means being configured to cut off the power supply of the electric power supply module and of the control module of said additional power supply means by means of said switching means.