Square D FAL14030 Molded Case Circuit Breaker

Square D FAL14030 is a 1-pole, 30-amp molded‑case circuit breaker from the FAL family, designed to protect feeders and branch circuits in commercial and industrial enclosures. It supports 120/480 VAC service with a 277 VAC rating for typical lighting and distribution applications, and it carries a 125 VDC rating for DC circuits in mixed‑voltage systems. The device uses a thermal‑magnetic trip mechanism and is a unit‑mount, F‑frame breaker compatible with Square D panels and other FAL‑series gear. Interrupting ratings vary by voltage: 25 kA at 120 VAC, 18 kA at 277 VAC, and 10 kA at 125 VDC, aligning with its 30 A rating. This combination of voltage compatibility, SV/ICC ratings, and a compact unit‑mount form makes the FAL14030 suitable for protecting single‑pole circuits in medium‑load commercial installations where 277/480 VAC systems are present, while still accommodating DC feeder protection up to 125 VDC.