The 6 kA interrupting rating at 277 VAC and 10 kA at 250 VDC give it headroom for most industrial control panels and DC bus feeds. Curve K is less common than C or D in general distribution, but out here in the grease it's the right call for inductive loads that draw a hard start.
ABB S201MUC-K5 MCB 1P K 5A, 277 VAC / 250 VDC
MPNS201MUC-K5
ABB S200MUC series, S201MUC-K5 miniature circuit breaker, 1 pole, 5 A, trip curve K, 277 VAC / 250 VDC, 6 kA / 10 kA interrupting rating.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Amps | 5 |
| Type | Trip Curve K |
| Poles | 1 |
| Mounting | DIN Rail |
| Volts AC | 277 |
| Volts DC | 250 |
| Breaking capacity | 6 kA |
| Interrupt rating DC | 10 kA |
Product details
Frequently asked questions
Where can I buy S201MUC-K5 and how do I get a price?
Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
What is S201MUC-K5's listed amps and type?
Rated 5 A with a trip curve K characteristic, 1 pole, 277 VAC / 250 VDC.
Will S201MUC-K5 drop into a panel that was specified around S201MUC-K2 without rewiring?
Yes — both share the same 1-pole DIN-rail footprint, same voltage ratings, and same interrupting capacity. The only difference is the current rating: 5 A vs 2 A. No rewiring needed if the load stays within 5 A.
MPN
S201MUC-K5