60 A, K-curve, 3-pole MCB for motor and inductive loads
The ABB S203-K60 is a 3-pole miniature circuit breaker rated 60 A with a K-curve trip characteristic, designed for DIN-rail mounting in control panels. The K-curve means it tolerates the inrush of motor and transformer loads without nuisance tripping — the magnetic trip operates between 8 and 12 times rated current, so a 60 A motor start pulling 480–720 A momentarily won't drop the circuit. Interrupting capacity is 10 kA at 277 VAC, which covers most industrial panel fault levels.
DIN-rail integration
Snaps onto standard 35 mm DIN rail. The 3-pole footprint occupies three modular units (17.5 mm per pole). Terminal torque and wire size follow the ABB S200-series standard — no special tooling needed.