Square D 9421LF-1LS-12 Circuit Breaker Accessory

Square D 9421LF-1LS-12 is a long‑shaft operating accessory for Square D Class 9421 circuit‑breaker systems, designed to pair with the 9421LF1 operating mechanism (and LK1‑compatible configurations) to provide extended manual actuation through a door‑mounted or recessed access point. The LS12 shaft kit is specified for use with 9421LF1 or LK1 mechanisms and offers a mounting‑depth range of 5 1/2 to 21 3/4 inches, with distribution catalogs listing a packaging length around 19.5 inches. The shaft assembly is rated for 600 VAC operation and is intended to align with Square D/Schneider Electric components for standardized operation in industrial panels.