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Mechanical Only Breakdown Systems (MOBS)

MOBS is a physical termination for NE Passively Safe Columns. It is a minimum option for isolating the electricity supply to a single structure under impact. The system’s activation relies on the physical disconnection on impact of a tethered in-line IP68 Plug and Socket. It can also be used as a local isolation point.

The MOBS unit is housed within an IP67 enclosure and mounted in an underground STAKKAbox™ Access Chamber.

Features & Benefits

  • Fully compliant with EN12767:2007
  • Successfully tested at MIRA
  • Disconnection time proved with timing device
  • Suitable for use with NE, LE and HE Passively safe columns
  • Appropriate for use in non-passive columns
  • IP68 inline plug and socket system
  • Suitable for use with 6 – 25mm SWA cable
  • IP67 Enclosure with clear front casing
  • Wide range of above and below ground systems available to suit all site conditions
  • Designed and built to your specification
  • Simple installation onto din rail or 3U rack
  • Design layout drawings and specifications provided
  • Provides isolation of individual structures or circuits
  • Installation simple to test and prove prior to commissioning
  • Located on removable shelf within 40 tonne STAKKAbox™ Access Chamber
  • Steel Eyebolt provides tethering and tension point
  • Guaranteed electrical isolation of all volts within 0.2 seconds of impact
  • System can operate with impact sensor located 3km from SIS monitor board
  • Guaranteed isolation of all VOLTS even if the the structure has not detached from its base
  • Isolates all volts even if Impact Sensor is destroyed
  • Automatic restart and recheck after power failure
  • Provides fault outputs for impact, voltage drop and other potential maintenance issues
  • Impact sensors easily replaced after impact
  • Simple means of re-energising circuit while the impacted structure remains isolated
  • Fault outputs can be connected to CMS or RMS systems
  • Enables simple isolation of individual column for maintenance works
  • Simple to test periodically

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