All the Nexus Smart Switches from Generac come housed in aluminum NEMA / UL Type 3R enclosures, with baked-powder paint that is electrostatically applied. Generac's Heavy-Duty Contactor is UL recognized and designed for many years of trouble free service. The generator's control handles the transfer commands, sensing, timing & exercising functions.
By utilizing Digital Power Management (DPM) technology, the switch gains the capability for managing 2 air conditioning electrical loads without additional hardware. If used in conjunction with the (PMM) Power Management Module starter kit, a maximum of 4 extra additional loads may be managed individually.