ABB S503-C10 is a 3-pole molded case circuit breaker (MCCB) in ABB's S500/S503 protection family, rated at 10 A with a C‑curve trip characteristic. The S503-C10 designation denotes three poles for three-phase circuits and a nominal current of 10 amperes, making it suitable for protecting 3‑phase distribution in commercial or industrial electrical installations. This model is designed to interrupt current according to its C‑curve characteristics, providing overcurrent protection in 3‑phase systems.
