ABB S223-K16A-690 Molded Case Circuit Breaker

ABB S223-K16A-690 is a three-pole molded-case circuit breaker rated 16 A for up to 690 V AC, designed to protect electrical distribution circuits from overloads and short circuits with a thermal-magnetic trip, a type-K characteristic, and a short-circuit breaking capacity of 10 kA at 690 V. This ABB device serves as reliable protection for branch circuits in three-phase installations, helping prevent equipment damage by interrupting faults quickly. Its molded-case construction makes it suitable for inclusion in distribution panels and switchgear that manage motor feeders and general power circuits, while maintaining a compact footprint for standard 3-pole configurations. The S223-K family, including the S223-K16A-690 variant, is recognized for predictable trip performance and straightforward protection coordination with upstream devices. Typical use cases include protecting feeders in industrial control panels, machine circuits, and general power distribution networks that employ 690 V systems, where a 16 A protection device provides balanced protection for 3-phase loads. This specification aligns with ABB's legacy molded-case breakers, delivering dependable overload and short-circuit protection in a compact form factor.