The ABB S201P-C6 is a 1-pole miniature circuit breaker rated at 6 A with a Trip Curve C characteristic, meaning it trips at 5 to 10 times rated current — the standard choice for protecting general-purpose loads like lighting, control transformers, and small motor circuits where moderate inrush is expected.
S201P-C6 vs S201MUC-K2 — what changes
The S201MUC-K2 is the same 1-pole DIN-rail footprint, same 277 VAC voltage ceiling, but a different trip curve and interrupting capacity. The S201MUC-K2 uses a K-curve (trips at 8 to 12 times rated current, suited for inductive loads) and carries a 6 kA interrupting rating at 277 VAC versus the S201P-C6's 10 kA.
