Load classes
The EN 1433:2008 standard defines the appropriate load class based on the location where the channel is to be installed.
Installation groups
- Minimum class A 15, breaking load > 15kN
- Minimum class B 125, breaking load > 125kN
- Minimum class C 250, breaking load > 250kN
- Minimum class D 400, breaking load > 400kN
- Minimum class E 600, breaking load > 600kN
- Class F 900, breaking load > 900kN
The responsibility for selecting the appropriate load class lies with the designer. In case of any doubt, a higher load class should be selected.
Load class D400 is not recommended for high-speed road crossings or heavy vehicle maneuvering areas.

Load class A15
Areas that can be used exclusively by pedestrians and cyclists.
Load class B125
Footpaths, pedestrian areas and comparable areas, private car parks or multi-storey car parks.
Traffic speed: < 20 km/h
Load class C250
Kerb sides and non-trafficked areas of hard shoulders and similar.
Load class D400
Carriageways, hard shoulders and parking areas for all types of road vehicles.
Dynamic heavy traffic, road crossings.
Traffic speed: < 50 km/h
Load class E600
Areas subject to high wheel loads, such as docks and port roads.
Dynamic heavy traffic, road crossings.
Traffic speed: > 50 km/h
Load class F900
Areas subject to particularly high wheel loads, such as aircraft pavements.
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