On January 14, 2016 at 21:16, Trunk-Slammer -Supreme said...
Existing meaning the Ra2.
You put it back to a standard switch it should cause no problems since that basic switch will handle the load.
As others have mentioned, a contactor is a good choice, but is there any possibility of access to the wiring?
I think after he throws a clamp meter on it a DV will handle the load. I would think the 8ANS would be shutting completely down to overheat if the load was higher then the DV could do.