The ABB S261-B10 is a 1-pole miniature circuit breaker rated at 10 A with a Trip Curve B characteristic, mounted on DIN rail. Trip Curve B means the magnetic trip operates at 3 to 5 times rated current (30–50 A), so it's suited for resistive or lightly inductive loads where inrush is modest — think lighting circuits, control transformers, or general-purpose outlets in a panel. The 1-pole form factor occupies a single DIN-rail module, so it fits standard distribution boards or enclosure sub-panels without crowding adjacent breakers.
ABB S261-B10 Circuit Breaker, 10A Trip Curve B, 1-Pole DIN R
MPNS261-B10
ABB S261-B10, 1-pole miniature circuit breaker, 10 A, Trip Curve B, DIN rail mount.
$45.68Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Amps | 10 |
| Type | Trip Curve B |
| Poles | 1 |
| Mounting | DIN Rail |
Product details
Frequently asked questions
Where can I buy S261-B10 and how do I get a price?
The S261-B10 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
When sourcing S261-B10, what's the closest functional second-source — S201M-C10?
The S201M-C10 is a 1-pole, 10 A miniature circuit breaker but with Trip Curve C (magnetic trip at 5–10× rated current) versus the S261-B10's Curve B (3–5×). Both mount on DIN rail. The Curve C is better suited for moderate inrush loads like small motors or transformers; Curve B is the choice for resistive loads. Panel fit is the same 1-pole module width, so no rewiring is needed for the swap, but the trip characteristic difference matters for coordination.
What is S261-B10's listed amps (10) on this component line?
The S261-B10 is rated at 10 A continuous current.
What is S261-B10's listed type (Trip Curve B) on this component line?
The S261-B10 is a Trip Curve B miniature circuit breaker, meaning its magnetic trip operates at 3 to 5 times rated current.
Will S261-B10 drop into a panel that was specified around S201M-C10 without rewiring?
Yes, both are 1-pole DIN-rail breakers with the same module width, so the S261-B10 fits the same panel footprint and busbar arrangement as the S201M-C10 without rewiring. The difference is the trip curve — Curve B vs Curve C — so verify the load's inrush characteristic before substituting.
MPN
S261-B10