• AT-F326 Abort Switch for Automatic Fire Extinguishing System
  • AT-F326 Abort Switch for Automatic Fire Extinguishing System

AT-F326 Abort Switch for Automatic Fire Extinguishing System

No.AT-F326

ANWETECH AT-F326 is a 24VDC illuminated abort switch designed for fire alarm and releasing systems. It features a green illuminated push button, normally open (N/O) contact output, M22 mounting thread and compact panel-mount design, making it suitable for extinguishing control panels and releasing system abort circuits.

  • AT-F326 Abort Switch for Automatic Fire Extinguishing System

Description

Product Description

The ANWETECH AT-F326 Abort Switch is a manual abort input device designed for fire alarm and releasing systems that require an operator-initiated abort function. When connected to a compatible control panel, the switch sends an abort signal through its dry contact terminals. The actual system response, such as hold, delay or inhibit, depends on the connected panel logic and the site programming.

The supplied version is designed for 24VDC service and uses a green illuminated push button for clear local identification during operation and testing. Its standard M22 mounting format makes it suitable for installation on stainless steel faceplates, panel doors and fire releasing control stations.

AT-F326 is ideal for extinguishing systems, gas releasing panels and other fire protection control applications where a reliable manual abort input is required. It combines simple operation, clear visibility and easy panel integration for professional fire safety projects.


Key Features

  • Manual abort switch for fire alarm and releasing systems
  • 24VDC illuminated push button version
  • Green illuminated operator for clear local visibility
  • Normally open (N/O) contact output
  • Standard M22 mounting format
  • Suitable for panel or stainless faceplate installation
  • Dry contact abort signal for releasing panel input
  • Compact structure for easy installation and maintenance
  • Designed for extinguishing and releasing control logic applications

Technical Specifications

Item Specification
Model AT-F326
Product Name Abort Switch
Operating Voltage 24VDC
Contact Type Normally Open (N/O)
Indicator Color Green illuminated push button
Indicator Terminals X1 / X2
Switch Terminals 3 / 4
Mounting Thread M22
Panel Cutout Approx. φ29 mm
Overall Dimensions Approx. 51.3 mm depth
Body Width 48 mm
Max. Front Projection 8 mm
Head Height 10 mm

Terminal Identification

  • X1 / X2: pilot lamp supply terminals for the 24VDC illuminated section
  • 3 / 4: normally open switch contact terminals for the abort signal circuit

Installation Procedure

  1. Prepare the panel or faceplate opening according to the M22 / φ29 mm mounting requirement.
  2. Install the switch from the front side and secure it firmly to avoid rotation or loosening.
  3. Connect the 24VDC indicator supply to terminals X1 and X2 according to the device marking.
  4. Connect terminals 3 and 4 to the abort input circuit of the releasing or fire alarm control panel.
  5. Carry out a functional test in service mode and confirm that the panel receives the expected abort signal.

Testing and Maintenance Notes

  • Confirm the terminal numbers on the actual device before energizing the circuit.
  • Verify that the abort input at the panel performs the intended site function during testing.
  • Inspect cable tightness, mechanical fixing and indicator operation during routine maintenance.
  • After any maintenance activity, return the connected system to normal operating status and record the test result.

Applications

  • Fire alarm releasing systems
  • Gas extinguishing control panels
  • Releasing abort stations
  • Fire suppression control panels
  • Industrial fire safety systems
  • Building extinguishing and releasing control systems

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