Home > Companies > Coopers Fire Ltd > FireMaster® Concertina™ - Open

Active fire curtain barrier assembly comprising technologically advanced fire-resistant fabric barriers encased in a compact steel housing, available in open shapes to be used in conjunction with side channels. Barriers remain invisibly retracted until activated by an alarm or detector signal, at which time they descend safely to their fire operational position.

To be compliant, fire barriers must be protected from a short circuit and or total power failure, this is achieved with the patented Total Gravity Fail-Safe (TGFS) system. Fire barriers will control the spread of fire in a building.

Applications include atria, escalators and stairs, and will remain hidden within the ceiling until deployed.


The barrier assemblies commence movement upon initiation or any initiation, power or system failure and move to the fire operational position with site specific adjustable and synchronized velocities within the range of 0.06–0.15 m/s using the unique VarioSpeed™ function.

In the event of mains power failure, they remain retracted using their own dedicated battery back-up power supply for a pre-determined period (nominally 30 minutes). If signalled to descend during this period, they fail-safe by gravity in a controlled manner to their fire operational position. At the end of the pre-determined time delay they fail-safe by gravity in a controlled manner. This safety feature is essential to avoid dangerous guillotine/ free-fall deployment.


Fabric type is EFP™ 4/1000, a glass fibre, stainless steel wire reinforced, fabric coated with a micronized aluminium filled fire retardant polyurethane, nominal 690 g/m². It is in compliance with the requirements of Class 0 to meet the statutory guidance in Building Regulations (E&W) Approved Document B (Volumes 1 and 2).


Compliant to PAS 121:2007 (where applicable).


One year.

Related literature

The following content references this product:

Standard product features

Fire resistance:

240 minutes (four hours) integrity.

Radiation resistance:

120 minutes <15 kW/m².

Power supply:

230 V AC 50 Hz dedicated supply via 12 A un-switched fused spur. Backup battery: Two 12 V 12A/h lead acid batteries.

Alarm signal:

Normally closed volt-free contacts, open on activation.


Power on, alarm active and alarm off.

Power supply size (w x h x d):

400 x 500 x 210 mm.

Motor control unit size (w x h x d):

300 x 200 x 80 mm.


Size (maximum):

Available in unlimited widths and drops up to 8.0 m.

Side channels:

Side channels seal the curtain fabric and the building. Fire can cause extreme positive or negative pressures (up to 20 Pa). Side guide channels are constructed from galvanized steel (available in standard RAL colours) that can be either surface mounted or recessed into the wall structure to give a flush finish.


A range of ceiling interfaces are available and can even invisibly conceal the barriers in the ceiling whilst still allowing access for service and maintenance. All systems remain totally concealed when non-operational.


Fixing options to suit all types of ceiling configuration are available (can be integrated with both solid and suspended ceilings and will remain hidden within the ceiling until deployed).

NBS Specification

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This product is associated with the following NBS Create clause:
45-25-28/414 Roller shutter sets

NBS Specification

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This product is associated with the following NBS clauses:

Product specification

An important note about specifying



Coopers Fire Ltd


+44 (0)23 9245 4405

Product reference

FireMaster® Concertina™ - Open


[ ______ ]


[Flush fit]
[Suspended ceiling with recessed shallow gap]
[Suspended ceiling with patented SLAT™]
Self levelling access trim.

Side channels

 - Type:
[Not required]
[Face fixed]
[Recessed fixed]
 - Orientation:
[Not applicable]
 - Finish:
[Not applicable]
[Galvanized steel]
[Powder coated]
Available upon request, insert colour requirements.


[I beam]
[Suspended with unistrut fit]
 - Accessories:
[Split drop delay]
To partially deploy to pre-determined level to permit escape, and initial smoke containment. After delay fully deploys to its fire operational position when mains, or emergency power is available.
[Visual alert system]
Light warning system when mains or emergency power is available.
[Voice warning]
Audio or spoken multi message facility when mains or emergency power is available.

Manufacturer details

Ignis House,
Houghton Avenue,
Hampshire, PO7 3DU
Tel +44 (0)23 9245 4405
Fax +44 (0)23 9249 2732
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