• Meets UL 508A Type 3R, 4, and 12. Fully • Tested and ready to use • CSA certified • Includes breakers and alarms for each EC fan • IP66 Enclosure with finger guards • Several sizes, connect 2, 4, 6, 9 or12 EC fans per cabinet • Front panel mounted Power and Enable Switches • High visibility lamps show the EC fan's operating states • Rated for both 460VAC/3/60 and 230VAC/3/60 • Powder-coated inside and out with RAL7035 textured light gray paint • Includes HK differential pressure controller to maintain constant flow or constant pressure in the ECFanGrid • Includes PVC tubing and accessories to connect the pressure sensors to the HK controller