Solutions for Power Utilities

Disconnectors Switch Unipolar

Model "DS I" / 15-38 kV / 400 3150 A

Disconnect the medium voltage unipolar switch, external use in substations and distribution systems, manufactured according to ANSI and NBR IEC 62271-102.

Each pole consists of 2 columns isolators type support. The main blade is of the double knife type, and the fixed contacts are arranged to support the efforts resulting electrodynamic requests. Driven by hot stick.

Key Features:

The disconnectors unipolar BRAZIL'S SEI are manufactured following modern process technologies and materials.

  • Electrolytic copper alloy terminals of high electrical conductivity, with normalized holes (NEMA);
  • Main blades of electrolytic copper alloy of high electric conductivity and mechanical strength;
  • Contact tinned or silver-plated electrolytic copper, high conductivity;
  • The base is made of folded sheet of galvanized carbon steel with fire;
  • Porcelain insulators or epoxy resin cycloaliphatic use EXTERNAL (own production), with high mechanical strength and distance flow to 36mm / kV;
  • Safety lock against accidental opening;
  • Hook for use opening tool load;
  • Horizontal, vertical or inverted mounting;
  • Ground connector (25 to 70mm²).


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