Schneider Electric’s Square D SL250 is a 3-pole, 250 A I-Line sub-feed lug kit designed to provide three‑phase sub-feed connections for compatible PowerPact panelboards. Rated for 600 V, it accepts aluminum or copper conductors from 4 AWG up to 300 kcmil and fits standard 4.5-inch panelboard spaces. Use with PowerPact HCM, HCP, HCP-SU, and HCR-U panelboards in I-Line configurations to feed downstream panels. This sub-feed lug kit preserves the I-Line lug geometry and is intended for industrial and commercial power distribution where a sub-feed is required.
