Extinguishant Status & Ancillary Units UL/FM Approved

 

Overview

The Sigma A-Si range of status indicators provides detailed status information for Sigma A-XT releasing control equipment.

All models provide high brightness, LED indication of Manual Only, Automatic and Manual, Abort Operated, Disabled, Imminent and Released conditions. Models are also available with zonal fire indicators and a common trouble indicator.

For systems where local control of the Automatic/ Manual mode and or a Manual extinguishant release control are required, units are available with these controls fitted. All models have
supervised inputs for the remote connection of Automatic/Manual mode and abort switches.

All units contain a large, LED display that shows a countdown of the time remaining until release in seconds.

Up to seven Sigma A-SI status units can be connected to the Sigma A-XT serial bus and require just two cores for data and two cores for power. Once connected, status units are supervised, and the Sigma A-XT control panel will indicate a trouble condition should any unit become disconnected.

Main features

  • High brightness LEDs
  • Detailed indication of the status of the control panel
  • Supervised data connection
  • Countdown timer shows time remaining until release
  • Manual only and Automatic & Manual mode select
  • Four-wire connection (data and power)
  • Protected dual action manual release switch option
  • Option for zonal fire and trouble indication with buzzer
  • Robust, high quality enclosure
  • Easy access to terminals
  • Remote Auto/Manual door interlock input (supervised)
  • Remote Abort input (supervised)
  • Internal trouble diagnosis indicators
  • UL864 and FM listed

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