The switch is the same; the connector is the same; but I think you'll find that your switch has a longer wire so the 1100 version probably won't reach your connector block. To check, I suggest you measure the length of yours and ask Moto Rapido to do the same on theirs.
If it won't fit, the one you want is 53940031B, (now 53940034B), and Mdina Italia have them in stock for about £24.
https://www.mdinaitalia.co.uk/53940031B.html