The ABB S203-D10 is a three-pole miniature circuit breaker (MCB) with a D-tripping characteristic, rated at 10 A. It mounts on a standard DIN rail in a distribution panel or sub-board. The D-curve means it tolerates the high inrush currents typical of motor and transformer loads — the magnetic trip threshold sits at 10–20× rated current, so it won't nuisance-trip on startup but clears a hard fault fast.
ABB S203-D10 3-Phase MCB, D-Curve 10A, DIN Rail
MPNS203-D10
ABB S203-D10, 3-phase miniature circuit breaker, D-curve, 10 A rated current, DIN rail mount, 0.47 kg.
$16.51Ref. price · indicative, final on quote
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 |
|---|---|
| Weight | 0.47 kgs |
Product details
Frequently asked questions
Where can I buy S203-D10 and how is it quoted?
The S203-D10 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
Will S203-D10 drop into a panel specified around S273-K40A?
Both are three-pole DIN-rail MCBs from the same ABB S200 family, so the mechanical footprint and busbar pitch are identical. The difference is the trip curve: S203-D10 is a D-curve (10–20× In magnetic trip) while the S273-K40A is a K-curve (8–12× In). If the panel was coordinated for K-curve, dropping in a D-curve may change selectivity with downstream devices — verify coordination before swapping.
MPN
S203-D10