Electrical Products

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  • sis isolation unit
  • traffic signal solutions
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  • electrical isolation unit
  • Passively Safe Structure
  • Electrical Isolation of Passively Safe Structure
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SIS Quad

Electrical Disconnection Systems

SIS Quad is an electrical isolation system specifically for traffic signal installations. It provides four channels of monitoring allowing isolation to four separate structures. Each signal pole is fitted with a small sensor that, in the event of impact, communicates with the monitor board triggering complete LV and ELV isolation within 0.2 seconds. Mounted on a standard 3U rack within a traffic signal control cabinet, the monitor board is fully compliant with EN12767:2007 (Electrical Isolation of Passively Safe Structures) and can be used with any type of passively safe column.

Product Benefits

  • Fully compliant with EN12767:2007
  • Suitable for use with NE, LE and HE Passively safe columns
  • Guaranteed electrical isolation of all volts within 0.2 seconds of impact
  • Guaranteed isolation even if the structure has not detached from its base
  • Provides isolation of individual traffic signal columns
  • Simple to test at commissioning stage
  • Enables safe isolation of individual columns for maintenance works
  • Provides fault outputs for impact, voltage drop and maintenance issues
  • Provides fault outputs to RMS systems
  • Successfully tested at MIRA

Product Description

Electrical Disconnection Systems

SIS Quad is an electrical isolation system specifically for traffic signal installations. It provides four channels of monitoring allowing isolation to four separate structures. Each signal pole is fitted with a small sensor that, in the event of impact, communicates with the monitor board triggering complete LV and ELV isolation within 0.2 seconds. Mounted on a standard 3U rack within a traffic signal control cabinet, the monitor board is fully compliant with EN12767:2007 (Electrical Isolation of Passively Safe Structures) and can be used with any type of passively safe column.

  • Fully compliant with EN12767:2007
  • Suitable for use with NE, LE and HE Passively safe columns
  • Guaranteed electrical isolation of all volts within 0.2 seconds of impact
  • Guaranteed isolation even if the structure has not detached from its base
  • Provides isolation of individual traffic signal columns
  • Simple to test at commissioning stage
  • Enables safe isolation of individual columns for maintenance works
  • Provides fault outputs for impact, voltage drop and maintenance issues
  • Provides fault outputs to RMS systems
  • Successfully tested at MIRA