SCIB-Short-Circuit-Isolator-BaseThe SCI/B is a Loop Isolator, which is fully compatible with Hochiki’s ESP analogue addressable protocol.

The SCI Base is compatible with any of the ASX Sensors, and can be used instead of the standard electronics free Base, this reduces the cost of the Short Circuit Isolators and improves the functionality. The Base incorporates an amber LED to show when it is isolating a section of the loop, and when used under each analogue Sensor if a single short circuit was to occur on the loop then no Sensors would be lost.

The SCI does not use an address, and has the same wiring configuration as the Sensor Base making it very simple to install. The SCI can also be used without a Sensor, in this case a cover should be fitted to conceal the wiring connections.



  • Features integral SCI
  • Detects Short circuits on the loop
  • Connection of up to 127 per loop
  • Standard wiring as detector base
  • May be wall mounted with a cover plate
  • Approved to EN54 Part 5

<4mA[/av_cell][/av_row] [av_row row_style=''][av_cell col_style='']Quiescent Current[/av_cell][av_cell col_style='']60μA[/av_cell][/av_row] [av_row row_style=''][av_cell col_style='']Transmission Method[/av_cell][av_cell col_style='']Digital Communications Using ESP[/av_cell][/av_row] [av_row row_style=''][av_cell col_style='']Operating Temp. Range[/av_cell][av_cell col_style='']-10°C to + 50°C[/av_cell][/av_row] [av_row row_style=''][av_cell col_style='']Maximum Humidity[/av_cell][av_cell col_style='']95%RH – Non Condensing (at 40°C)[/av_cell][/av_row] [av_row row_style=''][av_cell col_style='']Case Material[/av_cell][av_cell col_style='']ABS[/av_cell][/av_row] [av_row row_style=''][av_cell col_style='']Diameter[/av_cell][av_cell col_style='']100mm[/av_cell][/av_row] [av_row row_style=''][av_cell col_style='']Height with Base[/av_cell][av_cell col_style=''] 13mm[/av_cell][/av_row] [av_row row_style=''][av_cell col_style='']Base Fixing Centers[/av_cell][av_cell col_style='']48mm through to 74mm[/av_cell][/av_row] [/av_table] [/av_three_fifth]