The Curve K trip profile means it holds through moderate inrush — typical for motor starters and solenoid loads — while still tripping fast on hard shorts. Mounts on standard DIN rail, so it drops into any existing distribution board without adapter plates.
ABB S201MR-K10 MCB, 1P, 10A, Curve K, 10kA
MPNS201MR-K10
ABB S200MR series, MCB, 1-pole, 10 A, Trip Curve K, 277 VAC, 10 kA interrupting rating, DIN rail mount.
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Amps | 10 |
| Type | Trip Curve K |
| Poles | 1 |
| Mounting | DIN Rail |
| Volts AC | 277 |
| Breaking capacity | 10 kA |
Product details
Frequently asked questions
What does Trip Curve K mean on the S201MR-K10?
Trip Curve K means the breaker's magnetic trip threshold is set to 8–12× the rated current (80–120 A for this 10 A unit). That's higher than a Curve C (5–10×) but lower than Curve Z (2–4×). It's designed to ride through the inrush of inductive loads like small motors, transformers, and solenoid valves while still clearing a hard short fast enough to protect the cable.
What is the interrupting rating of the S201MR-K10?
It carries a 10 kA interrupting rating at 277 VAC. That's the maximum fault current the breaker can safely interrupt without welding its contacts or rupturing the arc chamber. For most commercial panelboards fed by a 50–100 kVA transformer, 10 kA is adequate at the branch level — but verify the available fault current at the point of installation against the panel SCCR.
Where can I buy the S201MR-K10?
Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or lead-time number is published here.
MPN
S201MR-K10