Our fire alarm components collection brings together the relays, isolation switches, emergency controls and associated equipment used when integrating fire alarm systems with access-controlled and automatic doors.

The range includes fire alarm interface relays, fused output boards, fireman’s switches, keyed controls, emergency push buttons and document boxes. These products help installers create the required connection between compatible fire alarm equipment and external door, locking or access control circuits.

This collection is intended for professional system installation, repair and maintenance. The correct component must always be selected according to the fire strategy, system cause-and-effect requirements, equipment specifications and relevant installation standards.

Fire Alarm Interface Relays

A fire alarm relay provides an electrical interface between a fire alarm system and another compatible device or control circuit. Depending on the design of the system, a relay may be used to signal an access control panel, change the state of a door release circuit or control equipment connected to an alarm output.

The FRM-100 12/24V Fire Relay is designed for low-voltage switching applications within fire alarm, access control, door entry, CCTV and security systems. It provides a practical interface for compatible magnetic locks, power supplies, door release circuits and building management equipment.

For installations requiring several separately protected outputs, the FFOB-4 Fire Fused Output Board provides four individually fused outputs. It is intended for compatible systems where multiple connected devices need controlled power distribution and circuit protection.

The required voltage, contact arrangement, switching capacity and fire alarm output type should all be confirmed before choosing a relay or output board.

Fire Alarm Isolation Switches

Fire alarm isolation switches allow authorised personnel to isolate or control a designated circuit during installation, testing or maintenance.

The FIREIS01 Fire Isolation Switch with LED features key-controlled operation and visual LED indication. It can be surface mounted as standard or installed with a suitable flush box, subject to the installation requirements.

An isolation switch should be positioned and labelled according to the system design. Installers should also confirm what equipment is being isolated and ensure the circuit cannot be left disabled unintentionally after maintenance work has been completed.

Fireman’s Switches and Emergency Isolation

Fireman’s switches provide an identifiable means of emergency isolation or control for compatible electrical equipment. They are commonly associated with equipment such as automatic doors, shutters, gates and other powered systems where the approved fire strategy requires emergency control.

The collection includes:

• FMS-FLUSH Flush-Mounted Fireman’s Switch – a stainless steel unit for flush-mounted installations.

• FMS-SURF Surface-Mounted Fireman’s Switch – supplied with a surface housing where recessing the unit is not practical.

• FMS-KEY Fireman’s Drop Key – intended for use with the compatible FMS flush and surface switch units.

The fireman’s switches do not include a drop key, so the compatible key should be ordered separately where one is required.

Fire Key Switches

Key-operated switches help restrict system override or control functions to authorised personnel. They can be useful where a door, access control circuit or associated system needs a controlled switching point.

The KS-CP-S Single-Pole Fire Key Switch provides single-pole key-operated switching, while the KS-CP-D Double-Pole Fire Key Switch offers double-pole voltage-free contacts for suitable applications.

Before choosing between a single-pole and double-pole switch, check the number of circuits or contacts that need to be changed. Contact ratings, operating voltage and the required switching sequence must also match the connected equipment.

Emergency Push Buttons and Manual Controls

Clearly identified manual controls can form part of a door release, assistance or emergency control arrangement. The required wording, button operation and contact configuration should be chosen according to the intended function.

Products available include:

• F-EBRB/EPTE Emergency Push to Exit Button – a momentary red push button mounted on a stainless steel plate.

• K-RB/FAS Fire Alarm Silence Button – a momentary button intended for a designated fire alarm silence control application.

• EBRBWC02 Blank Red Dome Button – a blank momentary red button that can be used where application-specific identification is provided separately.

• K-RB/PFA Press for Assistance Button – a manual assistance button for compatible call or signalling systems.

The colour of a button alone does not confirm its function. The wording, electrical contacts and connected system must all be appropriate for the intended application.

For emergency door-release products designed specifically to interrupt access control locking circuits, browse our Break Glass Call Points.

Fire Document Storage

Keeping important system information accessible can help building managers, service engineers and authorised personnel locate relevant records when needed.

The FIRE-DOCBOX-LN Lockable Fire Document Box provides a lockable steel enclosure for storing fire-related documents. It has a hinged lid and is supplied with two keys.

The information stored inside should be determined by the building operator, responsible person or relevant maintenance provider.

Connecting Fire Alarms to Access-Controlled Doors

When a fire alarm interfaces with an access-controlled door, the required response must be established before the system is wired. Depending on the approved design, this could involve releasing a compatible electromagnetic lock, changing the state of a control input or removing power from a designated circuit.

Fire alarm activation does not mean that every automatic or access-controlled door should respond in the same way. The correct operation depends on the door type, locking arrangement, escape strategy, fire compartmentation and documented cause-and-effect requirements.

Related locking and door-control equipment can be found in our full Access Control Parts range, including maglocks, electric strikes and other controlled locking products.

Fire Alarm Interfaces for Automatic Doors

Automatic door systems may require a fire alarm input, emergency isolation control or another defined response during an alarm condition. The required operation should be confirmed with the automatic door manufacturer and the building’s fire-system designer.

Some systems may need an interface signal, while others may require a controlled power change or separate input into the automatic door controller. Never assume that directly removing power will produce the required or safest door response.

Browse our Automatic Door Parts for additional activation, repair and maintenance components.

Power Supplies and Battery Backup

Where fire alarm interfaces, locking equipment or control devices require a separate electrical supply, the power supply must be correctly rated for the total connected load.

Our Power Supply Units include options for compatible access control, door entry and fire-related applications. Suitable 12V Sealed Lead Acid Batteries are also available for power supplies and control equipment designed to accept standby batteries.

Battery capacity, charging capability, enclosure space and required standby period should all be checked as part of the system design.

Selecting the Correct Fire Alarm Component

Before ordering, confirm:

• The required operating and switching voltage

• The contact arrangement and electrical rating

• Whether voltage-free contacts are required

• The number of circuits or outputs being controlled

• Whether the product will be surface or flush mounted

• The required button wording and operating action

• The environmental and ingress-protection requirements

• Compatibility with the fire alarm, access control or automatic door equipment

• The documented cause-and-effect operation

• Any inspection, testing and maintenance requirements

Fire alarm interfaces and emergency control circuits should be designed, installed and commissioned by competent personnel. Every completed function should be tested to confirm that the connected equipment responds correctly during both normal operation and an alarm condition.

Order Fire Alarm Interface and Isolation Components Online

Door Access Supplies provides fire alarm relays, isolation switches, fireman’s switches, emergency buttons and associated components for professional access control and automatic door installations.

Browse the collection above to compare available products, or explore our related ranges of Relays, Magnetic Hold-Open Devices, Testing Equipment and Access Control Parts.