It looks like this is the correct switching relay here: https://www.amazon.com/GENERAL-ELECTRIC-GE-RR7-21-30V-AC/dp/B006MHT0EW/ref=cm_cr_arp_d_product_top?ie=UTF8

But I'd like some confirmation. I have a wallplate that controls all the low voltage switches in the house, but I'm unsure how it comes off and if the prior owner may have just disconnected the ones that were just not in use (such as this set of wires I found in my ceiling). Looks like this (I'd also like to replace this as it looks ugly): https://imgur.com/Su1Z140