AC power equipment

Auxiliary power supply switchboards for energy

Auxiliary power supply switchboards are used for  distribution of electrical energy of three-phase alternating current with a frequency of 50 Hz and a voltage of 0.4 kV in the auxiliary power supply networks of power stations and substations.

Auxiliary switchboards produced by “ELCOR” Corporation are equipped with components of electricity measurement and energy commercial accounting systems, as well as monitoring systems based on programmable logic controllers with the ability to transfer data to the upper level and remote control.


Applied equipment

Metal structure:

  • Schneider Electric (Prisma, Spacial);
  • Rittal;
  • DKC;
  • ELDON;
  • domestic production with powder coating.

Switching devices:

  • Schneider Electric;
  • LS Electric;
  • Siemens;
  • ABB.


  • Schneider Electric;
  • nVent Eriflex.

Logic controllers and components of monitoring systems:

  • Schneider Electric;
  • Phoenix Contact;
  • ICP DAS.

Specifications and standards

Technical characteristics of auxiliary shields

Name of parameter/technical specificationParameter value/execution options
Rated voltage, V400
Rated frequency, Hz50, 60
Rated current, Aup to 6300
Type of internal separation according to IEC 60439-1up to 4b
Busbar materialcopper, aluminum
Steel structure materialpowder-coated sheet steel, powder-coated stainless steel
Degree of protection according to IEC 60529up to IP54
Climatic implementationУ, УХЛ, Т, ТВ
Seismic resistance, points on the MSK-64 scaleup to 9


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