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Official UK RepresentativeLighting Busbar System
GNL is a 25 A and 40 A lighting busbar trunking system for energising lighting circuits and raised-floor supply points, built from 3 m aluminium-housing elements with copper conductors and silver-plated contacts.
Compact lighting busbar system for flexible lighting distribution and fixture connections.
| Parameter | GNL 25A | GNL 40A |
|---|---|---|
| Rated current (In) | 25 A | 40 A |
| Insulation voltage (Ui) | 690 V | 690 V |
| Rated operational voltage (Ue) | 690 V | 690 V |
| Frequency (fn) | 50/60 Hz | 50/60 Hz |
| Short-circuit withstand current, 1s (Icw) | 2.5 kA rms | 2.5 kA rms |
| Peak withstand current (Ipk) | 3.75 kA | 3.75 kA |
| Phase resistance (R20) | 7.2 mΩ/m | 4.5 mΩ/m |
| Phase resistance (Rl) | 9.6 mΩ/m | 6.03 mΩ/m |
| Phase reactance (Xl) | 12 mΩ/m | 7.5 mΩ/m |
| Phase impedance (Zl) | 15.3 mΩ/m | 9.6 mΩ/m |
| Phase conductor cross-section | 2.5 mm² | 4 mm² |
| Neutral conductor cross-section | 2.5 mm² | 4 mm² |
| Aluminium housing cross-section (SPE) | 153.60 mm² | 153.60 mm² |
| Conductor material | Copper | Copper |
| Protection degree | IP55 | IP55 |
| Standard element length | 3000 mm | 3000 mm |
| Lighting fixture jack current | 10 A | 10 A |
GNL 2533 / 2535 / 25355 / 4033 / 4035 / 40355
3 m aluminium busbar element available in P+N+PEc, 3P+N+E (aluminium housing) and DALI configurations.
GNL EF41
Left-hand feed unit for supplying the busbar run.
GNL EF42
Right-hand feed unit for supplying the busbar run.
GNL EF43
3P+N+1/2 PE centre-feed unit for supplying the busbar run from a mid-span point.
GNL 40FX
Flexible joint used to change direction where a rigid elbow is not practical.
GNL 10L1–10L4
10 A plug-in tap-off jack for connecting lighting fixtures along the busbar run.
GNL 10F1–10F4
10 A plug-in tap-off jack with integrated glass-fuse protection.
GNL EC40 / EC41
Closes the open end of a feed unit at the end of a run.
GNL ALC
Covers each element joint to restore IP55 and mechanical protection.
GNL SSU1 / SSU2
Hanger for fixing lighting fixtures to the busbar system.
GNL SSU3
Support hanger for the busbar run; recommended spacing is 1500–2000 mm.
Full product catalogue covering all Gersan busbar trunking systems, including GNL technical data, order codes and dimensional drawings.
PDF · 25.1 MBQuick reference for joining two GNL busbar elements: alignment, M4 fixing and joint set, and closing the IP55 joint cover.
PDF · 375 KBNeed technical information?
Request datasheets, drawings and documentation for your selected busbar system.
SMART AUTOMATION
G-BUS is Gersan's automation and monitoring layer for compatible busbar systems—bringing visibility, control and intelligence to your power distribution network.
Compatible with selected GNL, GL, GGD and GS systems
Uses the busbar itself for data communication—fast installation with lower complexity.
Secure access from anywhere to monitor status, receive alerts and operate with confidence.
Track key electrical parameters, automate switching and schedule operations with ease.
Applications
GNL provides flexible, continuous lighting distribution where luminaires need to be positioned, moved or extended along the busbar run.
Continuous fixture-connection lighting for supermarkets, showrooms and retail units.
Continuous lighting distribution above storage aisles, picking areas and logistics operations.
Adaptable lighting distribution for offices, retail units and mixed-use commercial interiors.
Continuous, low-maintenance lighting distribution for institutional and civic buildings.
Reliable overhead lighting distribution for wards, corridors and clinical environments.
Continuous fixture-connection lighting for supermarkets, showrooms and retail units.
Engineering support
Share your current requirement, installation environment and project stage with our technical team.
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