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Releasing Module

Releasing Module

Overview

The GSA-REL is an analog addressable module that communicates directly with the fire alarm panel Signature loop controller. The GSA-REL controls sprinkler, pre-action and deluge systems, and may also be used to release extinguishing agents such as CO2 , Halon, or foam. The module is easily configured in the field and offers a wide range of options that ensure dependable service, while preventing the unnecessary release of extinguishing agent. 

In addition to being an intelligent network component, the GSA-REL interfaces with a number of conventional devices. These provide manual actuation of abort, release, and service disconnect functions. Together with the GSA-REL, they comprise a complete fire suppression package. There is no need for a separate releasing panel because the GSA-REL takes full advantage of the existing control panel communications infrastructure. This ensures low-cost installations with all the benefits of Signature Series analog initiation and control. 

  • Seven on-board circuits provide added flexibility. Each GSA-REL hosts:
  • Two supervised Class B release circuits 
  • Two supervised Class B pre-release NACs 
  • One supervised Class B manual release input circuit (latching) 
  • One supervised Class B abort circuit for normally-open abort switch (non-latching) 
  • One first alarm output relay (Form C contact) 

The GSA-REL also includes a series of built-in timers that determine the duration of abort routines and release sequences. These timers are easily configured in the field and provide a highly flexible range of options.

STANDARD FEATURES

Ideal for sprinkler, pre-action and deluge systems
Suitable for a wide range of sprinkler applications and extinguishing agents such as CO2 and Halon.

Built-in timers
Selectable durations for abort, manual, and automatic delays.

Four abort modes
Field-configurable abort routines determine how the timers operate when the abort function is initiated.

Supervised circuitry you can rely on
Two Class B release circuits and two pre-release circuits provided.

Manual operation keeps ultimate control in plain view
The GSA-REL features a manual release input circuit as well as a manual abort input circuit.

Fully automated response leaves nothing to chance
This module’s Form C relay is ideal for room preparation routines.

Automatic device mapping simplifies installation
Signature modules transmit directly to the loop controller their circuit locations with respect to other Signature devices on the wire loop.

Specification
  • Power riserInput voltage24 Vdc (power limited)
    Power riserSupervisory current25 mA, max.
    Power riserRiser input current4 amps maximum
    Power riserAlarm170 mA min., 4 A max.
    Release circuitsOutput rating2 A @ 24 Vdc (for each circuit)
    Release circuitsValves per circuit4 valves, max.
    Release circuitsMax. supervisory current0.4 mA (short circuit)
    Release circuitsNominal supervisory current0.18 mA
    Release circuitsSupervisory voltage26 Vdc, max. (open circuit)
    Release circuitsEnd of line device47k Ohm EOL
    Pre-release alarm circuitsOutput rating2 A @ 24 Vdc (for each circuit)
    Pre-release alarm circuitsMax. supervisory current0.4 mA (short circuit)
    Pre-release alarm circuitsNominal supervisory current0.18 mA
    Pre-release alarm circuitsSupervisory voltage26 Vdc, max. (open circuit)
    Pre-release alarm circuitsEnd of line device47k Ohm resistor
    Manual release input circuitMax. supervisory current0.4 mA (short circuit)
    Manual release input circuitNominal supervisory current0.18 mA
    Manual release input circuitSupervisory voltage26 Vdc, max. (open circuit)
    Manual release input circuitEnd of line device47k Ohm resistor
    Manual release input circuitCircuit typeClass B N.O. latching
    Manual release input circuitCircuit capacitance0.1 µF, max
    Abort circuitMax. supervisory current0.4 mA (short circuit)
    Abort circuitNominal supervisory current0.18 mA
    Abort circuitSupervisory voltage26 Vdc, max. (open circuit)
    Abort circuitEnd of line device47k Ohm resistor
    Abort circuitCircuit typeClass B N.O. non-latching
    Abort circuitCircuit capacitance0.1 µF, max
    First alarm output relayContact rating3 A @ 24 Vdc
    (0.6 power factor) Form C
    Signature Data lineOperating voltage5.2 to 19.95 Vdc
    Signature Data lineSupervisory current1000 µA
    Signature Data lineAlarm current1000 µA
    Environmental conditionsOperating temperature32° F to 120° F
    (0° C to 49° C)
    Environmental conditionsStorage temperature-4° F to 140° F
    (-20° C to 60° C)
    Environmental conditionsHumidity0 to 93% Non-condensing
    Wiring TerminalsSuitable for #18 to #12 AWG (2.5 mm² to .75 mm²)
    Type CodeFactory Set
    Addressing RequirementsUses six module addresses
    Agency ListingsUL, ULC, and FM
    Compatible SolenoidsMust be both UL/ULC-listed and FM-approved
Technical specification
  • Unique ref.releasing-module
  • Product familyFire Detection Systems
  • Product groupSmoke Detection Devices
  • TypeObject (single object)
  • Date of publishing2026-06-17
  • Edition number1
Related
  • Designed inUnited States
  • Manufactured inUnited States
Classification
  • BIMobject CategoryFire Products - Protection
  • ETIM CodeEC002455
  • ETIM NameGas detector
  • Uniclass 2015 CodePr_75_75_30
  • Uniclass 2015 DescriptionFire alarm detection devices and control equipment
  • CSI MasterFormat 2014 Code28 33 00
  • CSI MasterFormat 2014 TitleGas Detection and Alarm
  • OmniClass Number23-29 29 13 13
  • OmniClass TitleHeat Detectors

Region availability

North America
Anguilla
Antigua and Barbuda
Aruba
Barbados
Belize
Bermuda
British Virgin Islands
Canada
Caribbean Netherlands
Cayman Islands
Collectivity of Saint Martin
Costa Rica
Cuba
Curaçao
Dominica
Dominican Republic
El Salvador
Greenland
Grenada
Guadeloupe
Guatemala
Haiti
Honduras
Jamaica
Martinique
Mexico
Montserrat
Nicaragua
Panama
Puerto Rico
Saint Kitts and Nevis
Saint Lucia
Saint Pierre and Miquelon
Saint Vincent and the Grenadines
Saint-Barthélemy
Sint Maarten
The Bahamas
Trinidad and Tobago
Turks and Caicos Islands
U.S. Virgin Islands
United States
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