530a available headroom 4.4m sign face for highways and permanent site use
The 530a sign tells drivers the clearance available under a bridge, gantry or other overhead structure, shown as 4.4m and 14'6" so both metric and imperial vehicles can check whether they will fit. It is often used as an advance warning alongside the 530.1 overhanging structure sign, and is typically post mounted when used this way. This permanent sign face is manufactured to BS EN 12899-1:2007 and UK highway regulations, CE marked, with a Class 2 RA2 high-intensity reflective face for clear visibility at night and in poor weather. It is supplied as the sign face only, in wall mounted or post mounted options across three sizes.
Key features
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4.4m / 14'6" clearance - diagram 530a, shown in both metric and imperial for all vehicle types.
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Class 2 RA2 reflectivity - a high-intensity reflective face that returns light to drivers in low light.
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CE marked to BS EN 12899-1:2007 - meets the standard for permanent signs on public highways and private roads.
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3mm aluminium composite - a weatherproof face with a grey rear, made for permanent outdoor use.
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Two mounting options - post mounted with rear channels, or wall mounted for screw or adhesive fixing.
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Three sizes - 450mm, 600mm and 750mm, made in the UK.
Where it is used
- Approaches to low bridges, gantries and overhead structures
- Car parks and multi-storey entrances with restricted headroom
- Advance warning ahead of a 530.1 overhanging structure sign
- Construction and utility sites with overhead restrictions
Mounting options
Post mounted faces arrive with rear channels already fitted, clamping straight onto a post and locking in place with anti-rotational clips so the face cannot twist out of position. Posts and clips are sold separately, with two clips needed per sign. Wall mounted faces are supplied without the rear channel and with no holes, so the aluminium composite can be drilled for screw fixing or bonded in place with a no-nails adhesive.
Specification
| Specification |
Detail |
| Diagram reference |
530a |
| Clearance shown |
4.4m / 14'6" |
| Sign sizes |
450mm, 600mm or 750mm |
| Face thickness |
3mm |
| Material |
Aluminium composite |
| Face colour |
Red and white |
| Rear colour |
Grey |
| Reflectivity |
Class 2 RA2 (R2) |
| Compliance |
BS EN 12899-1:2007, CE marked |
| Mounting |
Wall mounted or post mounted with rear channels |
| Origin |
Made in the UK |