Schneider Electric 24434DA Multi9 Circuit Breaker

Schneider Electric’s Multi9 C60 UL1077 MCB, 1P 16 A, C Curve, 277 V, 5 kA, part number 24434, is a single‑pole miniature circuit breaker from the Multi9 family designed for supplementary protection in low‑voltage distribution panels. It carries UL 1077 listing and delivers a 5 kA short‑circuit breaking capacity at 277 V, making it suitable for general branch circuit protection in commercial or light industrial settings. The C60 designation denotes a C‑curve trip characteristic, providing a balanced response to typical inrush currents on lighting and outlet circuits without excessive nuisance tripping. Schneider Electric notes that the 24434 reference has been discontinued, with commercialization ending on March 20, 2019 and end of service on May 31, 2021; the recommended replacement is the Multi9 C60SP MCB (1P, 16 A, C Curve, 277 V, 10 kA UL 1077) under model number M9F22116, offering a higher 10 kA breaking capacity for newer installations. For retrofit or new panel work, verify compatibility with the Multi9 C60SP family and ensure the 277 V distribution environment aligns with the device ratings.