On January 14, 2016 at 20:01, goldenzrule said...
Existing, meaning the non Ra2 switch that was in place beforehand? BTW, I removed the ra2 switch for now and put the old one back that thankfully the electrician left. I couldn't reach him before leaving and did not feel comfortable leaving it in that state.
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?