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Disconnectors for fixed installation

Sécheron SW-type off-load disconnectors come in a wide range of configurations and with optional features to meet the needs of all railway applications. Our disconnectors ensure the safe isolation of the equipment powering the overhead lines and third rails of DC mass transit and DC railway lines.

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Brochures
SW disconnector
SWx18 disconnector
SWI(N) disconnector
Supply program for rail transportation
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Product environment

Sécheron brings decades of experience designing and manufacturing electrical safety components and solutions for DC traction power substations for the railway industry. Our SW-type off-load disconnector comes in a wide range of configurations and with optional features to meet the needs of all railway applications. Our switches ensure the safe isolation of the equipment powering the overhead lines and third rails of DC mass transit (metro, Light Rail Vehicles, tramways, EMU trains) and DC railway lines.

Our disconnectors for fixed installations can be integrated into your disconnector panels to be used as the rectifier incoming or negative disconnector, feeder cable disconnector, by-pass disconnector, or as disconnector with earthing.

All of our components and solutions are backed by Sécheron expert service during all phases of your project. Let us recommend the best solution to meet your needs. Whatever your choice, you can count on efficient support worldwide for the entire lifetime of your product.

Technical Description
  • Executions: disconnector, disconnector & earthing, change-over.
  • Rated insulation voltage 3000 or 4800 VAC/DC.
  • Current range from 2000 A to 8000 A.
  • High insulation level – OV4.
  • Peak short-time withstand current 170 kA.
  • 1 or 2 pole versions.
  • No breaking nor making capacity.
  • Electric operation.
  • Control voltage from 24 to 220 VDC or 230 VAC.
  • Optional electro-magnet or key interlockings.
  • Auxiliary contacts for main contact position indication.
  • High mechanical durability.
  • Indoor installation.
  • Suitable for ambient temperature – 25 °C to +40 °C.
  • Reference standards: EN 50123-3; IEC 61992-3.
Documentation
SW disconnector
SWx18 disconnector
SWI(N) disconnector
Supply program for rail transportation

Main Benefits

Comprehensive product line
Wide range of configurations and options
Reliable isolation for high electrical safety
Protects people with key interlocking functions
High short-time withstand current
Extensive factory reliability testing
Low maintenance
Proven design accepted worldwide
Long service record
Worldwide after-sales service

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