Horizontal auto transfer switch 20 A, 208V, 8 IEC C-13 and 2 IEC C-19 receptacles, two LEDs power-on indicators with and dual 10' power cord with NEMA 6-20P plug. UL and c-UL Listed. Power Feeds A and B must be Phase Synchronized. Dimensions: 1.72"H x 17.0"W x 9.0"D (44mm x 431mm x 229mm) .. see full description