GVW 2100kg
GTW 3300kg
Braked 1200kg
MIRO 1095KG
MTPLM 1295KG
Nose weight 100kg
Thank you
I am a little surprised that the "Cars maximum static vertical hitch load (nose weight, nose load)" is 100kg. Did you quote the value for the car or the caravan? With a towed load limit of 1200kg, I would expect the cars (not the caravans) limit to be nearer 60 or possible 75kG
In your case the car manufacturer has used the difference between the vehicles GTW - GVW as the maximum permitted towed load.(1200kg) That is most common and sensible way of doing it.
The legal definition of towed load is the weight carried by the trailers axle. As your cars towed weight limit is 1200kg, that is the maximum load that should be on the trailers axle, but that is not the total weight of the trailer, because you also have the nose load that bears down on the cars tow ball to consider.
Legally the load on the tow ball is not part of the towed load becasue its is supported by the cars tow ball, and that becomes part of the cars load. Consequently whilst your car has a towed weight limit of 1200kg, the total trailer weight can be 1200kg + whatever nose load is applied to the ball hitch
Even though the UK is no longer part of the EU the bulk of the construction and use regulations for cars and trailers are still the same, The regulations anticipate that the nose load for any trailer will be a minimum 25kg or 4% of the trailers towed mass (Whichever is greater) so in your case with a towed load of 1200kg, a nose load of a minimum of 48kg would be expected on the ball hitch.
That means you could in fact load your caravan to a total weight of 1248kg , provided you ensured your nose load was at least 48kg.
Just to be clear the 1248kg represents the total weight of the caravan not just the weight on the axle.
This detail is often overlooked becasue it is difficult to manage unless you have access to a weighbridge for checking axle loads and a means of accurately checking the applied nose load on the hitch. But ultimately it could legally give you an additional 48kg of payload in the caravan.