PowPak Load Controller, Relay module with Softswitch, 20A general purpose switch, 120/277V Softswitch: Lutron's patented technology prevents arcing of relay contacts, extending product lifetime Optional low-voltage dry contact closure output provides integration to HVAC, VAV, etc. Receives wireless inputs from up to 10 Pico remote controls, and 10 Radio Powr Savr occupancy / vacancy sensors Able to control 20 A receptacles Capable of switching general-purpose loads