The ABB S202-K60 is a 2-pole miniature circuit breaker rated for 60 A continuous current at 277 VAC, with a K trip curve and a 6 kA interrupting capacity. It snaps onto a standard DIN rail — common in distribution panels and sub-panels for motor branch circuits or transformer protection where high inrush without nuisance tripping is needed.
What the ratings mean for fit
The 60 A rating governs the continuous load the breaker can carry without tripping — sized for a 60 A feeder or a large motor branch. The K trip curve means the magnetic trip is set to tolerate higher inrush (typically 8–12x rated current) compared to a B or C curve, making it the right choice for inductive loads like motors, transformers, or solenoid banks where a standard curve would nuisance-trip on startup. The 6 kA interrupting capacity at 277 VAC is the maximum fault current the breaker can safely clear — adequate for most commercial and light industrial panels where available fault current stays under that threshold.