Description
FAAC L Beam Extension – 4.3m – 428051
The FAAC L Beam Extension 4.3m is a genuine modular barrier beam section designed for the FAAC B680H Hybrid Barrier system.
The 428051 forms the final extension section of the modular L beam assembly and connects to the 4m Initial L Beam using the dedicated L Beam Joint.
FAAC officially identifies part number 428051 as the Final Beam L – Length 4.3m and uses this component in its example long-boom B680H installation.
FAAC Part Number: 428051
🚧 Modular L Beam System
The 428051 forms part of FAAC’s modular L beam system designed for longer B680H barrier configurations.
The modular L beam range consists of:
- 428048 – L Beam Initial 4m
- 428049 – L Beam Extension 2.3m
- 428050 – L Beam Extension 3.3m
- 428051 – L Beam Extension 4.3m
- 428616 – L Beam Joint
The appropriate extension is selected according to the required passage width and overall boom configuration.
📏 4.3m Extension Section
The 428051 provides the longest final extension section available within the B680H modular L beam system.
It is designed to connect to:
- 428048 – L Beam Initial 4m
Using:
- 428616 – L Beam Joint
This combination is used to create the longest B680H boom configurations, allowing the barrier to accommodate effective passage widths through to 8 metres.
🔗 L Beam Joint
The Initial L Beam and 4.3m L Beam Extension are connected using the dedicated 428616 L Beam Joint.
The joint connects the two modular boom sections to form the complete L beam assembly required for longer B680H installations.
The L Beam Joint is supplied separately and is not included with the 428051 extension.
⚙️ B680H L Beam System
The FAAC B680H supports barrier boom configurations from 2m through to 8m, with the larger L beam system used for passage widths from 5m up to 8m.
When using the L beam system, the corresponding mounting and balancing assembly is:
- 428437 – L Beam Pocket & Spring – B680H
This provides the appropriate beam mounting pocket and balancing spring for the larger L beam configuration.
🚧 Used in FAAC’s 8m Configuration
FAAC specifically shows the 428051 in its typical long-boom B680H installation.
The beam assembly consists of:
- 428048 – L Beam Initial 4m
- 428051 – L Beam Extension 4.3m
- 428616 – L Beam Joint
- 428437 – L Beam Pocket & Spring
This modular combination allows the B680H to achieve its maximum 8m effective passage width.
💡 Compatible Accessories
FAAC allows selected boom accessories on longer L beam configurations, but the permitted accessories depend on the effective passage width.
For L beam configurations:
- 5m to 7m – lights, skirt and end foot supported
- 7m to 7.5m – lights supported, with restrictions on combining skirt and end foot
- 7.5m to 8m – lights and end foot supported; skirt not permitted
These limitations are important on longer barrier booms because additional accessories affect the overall weight and balancing requirements of the system.
Key Features
- Genuine FAAC barrier beam component
- FAAC Part Number: 428051
- 4.3m L Beam Extension
- Official FAAC designation: Final Beam L – 4.3m
- Part of the modular B680H L beam system
- Designed for long B680H barrier configurations
- Connects to the 428048 L Beam Initial 4m
- Requires 428616 L Beam Joint
- Compatible with B680H L Beam Pocket & Spring – 428437
- Suitable for B680H configurations through to 8m passage width
Specifications
- Manufacturer: FAAC
- Part Number: 428051
- Product Type: Barrier Beam Extension
- Beam System: L
- Beam Type: Modular
- Section: Final / Extension Beam
- Length: 4.3m
- Barrier Compatibility: FAAC B680H
- Required Initial Beam: 428048
- Required Beam Joint: 428616
- Corresponding Pocket & Spring: 428437
- B680H L Beam Passage Range: 5m to 8m
FAAC lists the 428051 as the 4.3m Final Beam L within its current B680H modular L beam range.
Compatibility
Designed for:
- FAAC B680H Hybrid Barrier Operator – 104680
- FAAC B680H Hybrid Barrier Kit
- 428048 – L Beam Initial 4m
- 428616 – L Beam Joint
- 428437 – L Beam Pocket & Spring
Other available L Beam Extensions include:
- 428049 – L Beam Extension 2.3m
- 428050 – L Beam Extension 3.3m
⚠️ Please Note
This listing is for one FAAC L Beam Extension 4.3m – 428051.
This is the final extension section of a modular B680H L beam assembly and is not intended to be used as a complete standalone barrier boom.
The 428048 L Beam Initial 4m and 428616 L Beam Joint are required to form the corresponding modular L beam assembly.
The B680H operator, cabinet, L Beam Pocket & Spring, initial beam, beam joint and other accessories are not included unless specifically stated.
