Kp Other models
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Kp 3500B: a light O2-class EU trailer with a 3,500 kg gross weight, 795 kg kerb weight and a length of 7.62 m, fitted with overrun rather than air brakes.
At a gross weight of 3,500 kg, the Kp 3500B sits right at the upper limit of the EU O2 trailer class, which spans 750 to 3,500 kg. Trailers in this class are towed behind cars or light commercial vehicles and carry no drivetrain of their own, relying instead on an overrun brake triggered through the drawbar whenever the towing vehicle brakes. The 3500B therefore sits at the edge of what an ordinary category BE car licence still allows a driver to tow.
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With a kerb weight of 795 kg and a length of 7.62 m, the trailer leaves a payload of 2,705 kg, roughly three quarters of its gross weight. That combination of a light chassis and considerable length points to a lightweight frame, typical of platform or transport trailers built to carry bulky rather than extremely heavy loads. Its width of 2.22 m stays below the threshold at which an oversize transport permit would be required.
Trailers of this type serve commercial and private users hauling machinery, vehicles or long unit loads. The O2-class overrun brake needs regular checks of its cables and pressure plate, since it works mechanically rather than through an air line. Registration also depends on drawbar nose weight, which determines which towing vehicle can safely be paired with the trailer.
Buying used, it is worth checking the overrun coupling: play in the tow eye, corrosion around its mounting and the condition of the brake cables reveal the maintenance history. The chassis should be checked for rust at welds and spring mounts, along with the sideboards and floor on platform versions. Tyre age, the lighting system and a matching connector for the towing vehicle round out the pre-purchase inspection.
Sources: SpecCodex-Register: Kennwerte des Modells 3500B
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