Lifecycle and sourcing
The S203M-C4: No official successor or cross-reference is listed. For a functional equivalent from another brand, compare the 3-pole count, 4 A rating, and C-curve — the DIN-rail footprint is standard across manufacturers.
ABB S203M-C4 Miniature Circuit Breaker, 3-pole 4A C-curve
MPNS203M-C4
ABB, System pro M compact, Molded Case Circuit Breaker, S203M-C4, 3-pole, 4 A, C-curve, 0.45 kg.
$33.02Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Weight | 0.45 kgs |
Product details
Frequently asked questions
Where can I buy ABB S203M-C4?
Submit a quote request for current availability and pricing.
What is the breaking capacity of S203M-C4?
The breaking capacity is not listed in the available specification data. For this rating, typical System pro M compact breakers carry 6 kA or 10 kA at 230/400 VAC per IEC 60898-1 — confirm the exact value from the product label or a full datasheet before specifying.
Is S203M-C4 suitable for residential use?
Yes — the 4 A C-curve characteristic is standard for residential final circuits protecting lighting and small appliance loads. The DIN-rail format fits domestic consumer units.
MPN
S203M-C4