relay VP TMD22 -P panel key switch

[blue-max]

I need to replace these relays - anyone know of a generic version I can use. The original was fitted with a G. Cartier 22 204 130 rated 40 amps. VP have offered part no.841177 which is rated at 30 amps - is this an issue?
Non brand supplier details appreciated.    Like wise the panel key switch