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Single-area conventional extinguishant control panel

Sigma XT – practical, proven control for dedicated extinguishing zones.

Overview

The Sigma XT extinguishant releasing panel, installed extensively in thousands of premises globally, offers outstanding value and performance for all small to medium fixed firefighting installations.

With three detection zones as standard, extinguishant release can be configured to activate from any combination of detection zone inputs.

Sigma XT panels are both robust and easy to install having all the electronics mounted on a single, easily removable, steel plate.

Countdown Timer

A built-in countdown timer provides a clear indication of the time remaining until extinguishant release.

Multiple Status Indicators

Supports up to seven four-wire status indicators, providing clear visual indication of system status throughout the protected area.

Multiple Ancillary Output Cards

Provides multiple ancillary output cards to increase the number of relay outputs available.

Flexible Releasing Logic

Any single zone or combination of zones can be configured to activate extinguishant release, providing flexibility for a wide range of applications.

Main Features

  • Any single zone or any combinations of zones can be configured to release
  • Configurable first stage sounder delays
  • Configurable detection delays
  • Zero time delay upon manual release option
  • Compatible with I.S. barriers
  • Non-latching zone input option to receive signals from other systems such as aspirating equipment
  • Countdown timer shows time remaining until release
  • Supports up to seven, four-wire status indicators
  • Approved and certified to EN12094-1, EN54-2 and EN54-4
  • UL and FM Approved version also available

Technical Documentation

Click to download the documentation

Datasheets

Manuals

System Diagram

Certificates

Accessories

Sigma SI Sigma XT Ancillary Board Relay Boards Plant Isolate/Audio Visual Remote Indicator Unit Docbox Tamper Resistant Vision Window Sigma XT Main/Reserve Duty Extinguishant Keyswitch Unit Sigma XT Extinguishant Extract Key Switch Sigma XT Extinguishant Hold Off Units Sigma XT Extinguishant Abort Button Battery Enclosure
  • Sigma SI
  • Sigma XT Ancillary Board
  • Relay Boards
  • Plant Isolate/Audio Visual
  • Remote Indicator Unit
  • Docbox
  • Tamper Resistant Vision Window
  • Sigma XT Main/Reserve Duty Extinguishant Keyswitch Unit
  • Sigma XT Extinguishant Extract Key Switch
  • Sigma XT Extinguishant Hold Off Units
  • Sigma XT Extinguishant Abort Button
  • Battery Enclosure

Sigma Si is a range of system status indicator units for use with Kentec Sigma XT, Sigma XT+ and Syncro XT+ extinguishant releasing control panels. The Sigma Si range of status indicators provides detailed status information for Sigma XT and Sigma XT+ extinguishant release control equipment.

Sigma SI

The Sigma XT Ancillary Board is compatible with all Sigma XT control panels which have operating software version SIGXT_11A.HEX or above.

Sigma XT Ancillary Board

Easy to fit and wire for additional control functions or to expand the capability of existing relay outputs, these simple boards contains either one or four 24V DC relays, which can be used for any extra-low voltage switching applications.

Relay Boards

A range of indicator units with either red or yellow indicators to provide an audible and visual status of alarms, isolation’s or other functions.
These units are available with a keyswitch to silence the internal buzzer or a keyswitch to illuminate the indicator and buzzer. A volt-free contact is provided when the keyswitch is operated for ancillary control functions.

Plant Isolate/Audio Visual

Remote Indicator Units provide an extension for LED indicators on hidden detection devices to allow their status to be observed without having to expose the detection device itself.
All units have dual, bright LED indicators with a wide viewing angle that flash alternately to attract attention, and are available mounted to square or round metal plates for fitting to standard electrical back boxes.

Remote Indicator Unit

Designed to provide a convenient method of storing system test records, manuals, configuration files, keys and other documents or access arrangements for fire alarm and protection systems, the Sigma DocBox is finished and constructed in a similar manner to Sigma and Syncro AS fire alarm control equipment.

Docbox

The Tamper Resistant Vision Window is perfect for public areas where restricted access is necessary to prevent damage and unauthorised operation of the control panel. The cover features a fully welded steel construction and key lockable inner door making it robust and secure.

Tamper Resistant Vision Window

The K13480M10 Main/ Reserve switch provides a convenient and secure means to operate a switch to reserve extinguishing system agent where such provision is made as a back up to the main agent. The “901” key is common to many fire detection and protection control panels and is removable in either position. The robust enclosure allows for either surface mounting or mounting to a single gang flush box.

Sigma XT Main/Reserve Duty Extinguishant Keyswitch Unit

The K13520M10 Extract unit provides a convenient and secure means to operate extract fan plant assosciated with the fire protection extinguishing system. The “901” key is common to many fire detection and protection control panels and is retained in the operated position. The robust enclosure allows for either surface mounting or flush with optional collar.

Sigma XT Extinguishant Extract Key Switch

Sigma Si Hold off units are available with red or green actuators (BS 7273-1 recommends white with red button) and are mounted in a single gang, surface mounting enclosure. For flush mounting, the enclosure may be discarded, and the unit mounted to a standard UK single gang electrical back box.

Sigma XT Extinguishant Hold Off Units

The K13470M10 Abort unit provides a highly visible point to enable an immediate abort of a fire protection extinguishant release. The large red, domed pushbutton latches when pressed and requires a twist action to release. The robust enclosure allows for either surface mounting or mounting to a single gang flush box.

Sigma XT Extinguishant Abort Button

K16000 series battery enclosures provide a convenient means of fitting extra batteries for increased standby capacity in fire protection and detection systems. Ranges are available to match Syncro‑styled or Sigma‑styled control equipment. All units are constructed with the same high‑quality steel and finish as the control equipment. A range of enclosure sizes is available, allowing a broad range of battery sizes to be fitted.

Battery Enclosure

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