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ABB · DCS / remote I/O module
S203-C10 is an ABB circuit breaker with Rated current Ie 10 A; Tripping characteristic B / C / D (IEC 60898); Number of poles 1 / 2 / 3 / 4 (IEC 60898). It is used in distribution boards, motor protection circuits, panel feeders where the installed unit is matched to the original catalog number and a compact, documented part is required.
| Electrical | |
| Rated current Ie | 10 A |
|---|---|
| Rated operational voltage | <= 440 V AC |
| Rated insulation voltage Ui | 440 V (IEC 60947-2) |
| Rated impulse withstand Uimp | 4 kV (IEC 60947-2) |
| Breaking capacity Icu/Ics | 6 kA / 10 kA (IEC 60898) |
| Tripping characteristic | B / C / D (IEC 60898) |
| Number of poles | 1 / 2 / 3 / 4 (IEC 60898) |
| I/O and communication | |
| Communication ports | Modbus, PROFINET, Ethernet |
| Mechanical | |
| Mounting | 35 mm DIN rail (IEC 60715) |
| Enclosure rating | IP20 (IEC 60529) |
| Environment and compliance | |
| Operating temperature | -25...+60 °C |
| Certifications | CE, UL, CSA, CCC |
Values follow the ABB DCS / remote I/O module specification for this catalog number; parameters not confirmed for this variant are omitted rather than estimated.
| ABB DCS / remote I/O module variants | |||
| Catalog number | Rated operational voltage | Tripping characteristic | Breaking capacity Icu/Ics |
|---|---|---|---|
| S203-C10 (this page) | <= 440 V AC | B / C / D (IEC 60898) | 6 kA / 10 kA (IEC 60898) |
| S203-C1 | 400 V AC (IEC 60898-1) | B / C / D (IEC 60898) | 6 kA / 10 kA (IEC 60898) |
| S203-C2 | 400 V AC (IEC 60898-1) | B / C / D (IEC 60898) | 6 kA / 10 kA (IEC 60898) |
| S203-C25 | <= 440 V AC | B / C / D (IEC 60898) | 6 kA / 10 kA (IEC 60898) |
All variants share the same DCS / remote I/O module footprint and terminal layout; the columns above show where they differ. Selecting a different catalog number changes the electrical interface, not the mounting.
The S203-C10 is the device-level element in an ABB circuit breaker installation. It receives the field signals and control supply listed above — <= 440 V AC — and switches or conditions the load within the 10 A ratings shown in the Specifications table. Wiring and protective devices are sized to those same numbers, not to a generic assumption.
Typical installations place it in distribution boards, motor protection circuits, panel feeders, where the unit is matched to the original catalog number and the enclosure provides 35 mm DIN rail (IEC 60715) support. Record the catalog number and revision from the nameplate of the installed unit before specifying a like-for-like spare.
Q.What supply does this device require?
It requires <= 440 V AC. Size the supply source to the same rating shown in the Specifications table.
Q.What are the key electrical ratings?
The confirmed ratings include 10 A and CE, UL, CSA, CCC marking. Cross-check them against the installed unit's nameplate.
Q.How is this device mounted?
It mounts by 35 mm DIN rail (IEC 60715). Confirm the cutout or rail before ordering a like-for-like spare.
Q.What is the operating temperature range?
The confirmed operating range is -25...+60 °C. Panels running beyond it need derated sizing.
Q.What replaces a unit that is no longer in production?
For a like-for-like spare, record the catalog number and revision from the nameplate; a current-production equivalent is identified by matching function and ratings.
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Every product is covered by a 12-month seller warranty provided by SHLY-PLC, effective from the date of delivery, against defects in materials and workmanship under normal use.
This warranty does not cover damage from misuse, improper installation, power surges, neglect, unauthorized repair, or normal wear and tear. See our Return Policy for warranty-claim instructions.
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