Security screens and counters
Bullet-resistant pay window (BRPW)
The BRPW is the pay window for counters where a risk assessment identifies a firearms threat. The glazing steps up to 26mm BR4, and the tray beneath it is the ballistic audio tray with an under-counter shot box.
- Glazing
- 26mm BR4/SG1/NS to EN 1063
- Resistance
- BS EN 1522 FB4
- Aperture
- W 610mm × H 1120mm

Tech sheets
All 2 tech sheets
Read them here, or take the PDF. Each one carries the drawing, the dimensions and the options.
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Bullet resistant pay window BRPW
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Bullet resistant glass
Specification
What you are getting
- Designed to resist BS EN 1522 FB4, glazed BR4/SG1/NS to EN 1063
- Cash packet audio tray, documents and cash to 100mm deep
- Electronic speech enhancement with an integral hearing induction loop
- Marmoleum worktop, graphite bonded to MDF with solid ash lippings; stainless steel tray
- Welded mild steel frame, polyester powder coated goosewing grey to BS 00 A 05, pre-drilled for fixing
- Requires a 13amp socket
Options
- Spall or no-spall glazing
- Joined with FB4 doors and ballistic trays into one protected line
Applications
Where it gets used
- Cash offices
- Ticket offices
- Enquiry windows
- Dispensary windows
- Surgeries
- Police front counters
What does BR4/SG1/NS mean?
BR4 is the EN 1063 class tested against a .44 Magnum handgun round. SG1 adds a shotgun slug test. NS means no spall: nothing breaks away from the protected side when the glass is hit.
What is BS EN 1522 FB4?
BS EN 1522 rates a complete window, door or shutter against firearms, frame and fixings included, not only the glass. FB4 is the class tested against a .44 Magnum handgun. The BRPW is designed to resist FB4 as a whole unit.
What is the shot box?
The ballistic audio tray sits over an under-counter shot box, so the opening that documents and cash pass through is not a weak point in the counter.
Does the BRPW need power?
Yes, a 13amp socket. It runs the electronic speech enhancement and the integral hearing induction loop.
Why MerFen
One firm makes it, fits it and keeps it working
Most installers fit what a manufacturer sells them. We make the physical side ourselves, so the specification starts with the site.
Request a free quote- In-house
Made in our own workshop
Screens, counters, doors, gates and hatches are fabricated in Edenbridge, to the sizes the building actually has.
- One team
Nobody passes the job on
The same people survey the site, draw the specification, make the steel, fit it and come back to service it.
- Approved
Accredited and partnered
SafeContractor accredited, with Hikvision VASP, Axis, Hanwha Vision and Paxton partner status behind the electronic side.
- After handover
Covered once it is in
Twelve months on our installation, three years on Hikvision hardware, and annual service contracts for the systems we install.