That curve is the key decision point: K-curve trips magnetically between 10 and 14 times rated current (In), so it's sized for inductive loads like motor starters, solenoid valves, and transformer primaries where the inrush would nuisance-trip a B- or C-curve breaker. On a 10 A frame, that means the magnetic trip kicks in between 100 A and 140 A — high enough to pass motor start, fast enough to clear a hard short. The interrupting rating is 15 kA at 230 VAC and 10 kA at 125 VDC.
ABB S801C-K10 MCB S800C 1P K 10A, 15 kA
MPNS801C-K10
ABB S800C series, S801C-K10, 1-pole miniature circuit breaker, Trip Curve K, 10 A, 230 VAC / 125 VDC, 15 kA interrupting capacity, DIN rail mount.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Amps | 10 |
| Type | Trip Curve K |
| Poles | 1 |
| Mounting | DIN Rail |
| Volts AC | 230 |
| Volts DC | 125 |
| Breaking capacity | 15 kA |
| Interrupt rating DC | 10 kA |
Product details
Frequently asked questions
Where can I buy the S801C-K10 and get a price?
The S801C-K10 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or price figure is published here.
What is the interrupting rating of the S801C-K10?
15 kA at 230 VAC and 10 kA at 125 VDC. That's the maximum fault current the breaker can safely interrupt at those voltages.
Will the S801C-K10 drop into a panel specified around the S201MUC-K2?
Mechanically yes — both are 1-pole DIN-rail breakers. The S801C-K10 is rated 10 A versus 2 A for the S201MUC-K2, and its interrupting capacity is higher (15 kA vs 6 kA AC). The S201MUC-K2 is a 277 VAC-rated device; the S801C-K10 is rated 230 VAC. Check the voltage and ampacity requirements before swapping.
MPN
S801C-K10