What This Filler Plate Kit Does
The AFP3SFD is a panel board filler plate kit from the AF family, designed to cover unused breaker openings in SFHA, SFLA, and SFPA panel boards. It handles the 250 A breaker cutout size and spans panel widths from 31 to 44 inches, with a 3x height configuration. The dual mount design lets you install it in either the main or sub-feed position without extra hardware.
Rated for 250 A breakers, this filler plate matches the physical cutout left when a breaker position is removed or left empty. The 44-inch maximum width covers the full range of standard SF-series panel enclosures. Dual mount means you can secure it from either side — useful when the panel is already wired and you need to avoid disturbing adjacent terminations. Three units stack vertically for the full 3x height slot.