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ABB S801U-K15 — 1-Pole MCB (DIN Rail)

S801U-K15 15A 1-Pole K-Curve DIN Rail Breaker

MPNS801U-K15

ABB S801U-K15 miniature circuit breaker, DIN rail mount, 1 pole, Trip Curve K, 15 amps, 240 VAC, 25 kA interrupting capacity.

ABB S801U-K15 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

S801U-K15 — Specifications
ParameterValue
Amps15
TypeTrip Curve K
Poles1
MountingDIN Rail
Volts AC240

Product details

Peer comparison — S201MUC-K2

The closest functional peer is the S201MUC-K2. Both are 1-pole DIN-rail K-curve breakers. Key difference: the S201MUC-K2 is rated 2 A and carries a higher voltage ceiling (277 VAC / 250 VDC) with a lower interrupting capacity (6 kA AC / 10 kA DC). The S801U-K15 delivers 15 A at 240 VAC with a stronger 25 kAIC — so it fits higher-fault panels and heavier branch loads. Footprint (1 module width) and rail mount are identical; no rewiring needed if the panel was specced around the S201MUC-K2, as long as the ampacity and voltage ratings match the application.

Frequently asked questions

How do I get current pricing and availability for S801U-K15?

Submit an RFQ. This part is quoted to order; availability and current pricing are confirmed at quote time through independent distribution channels.

What is S801U-K15's listed amps and type?

Rated 15 A, Trip Curve K, 1 pole, 240 VAC. Curve K holds through motor and transformer inrush without nuisance tripping.

Will S801U-K15 drop into a panel that was specified around S201MUC-K2 without rewiring?

Yes — same 1-pole DIN-rail footprint. Check ampacity: the S801U-K15 is 15 A vs the S201MUC-K2's 2 A, so it's a drop-in only if the branch load and upstream protection are sized for 15 A.

MPN
S801U-K15