Description
- Product Model: S203‑C10 (Order code:2CDS253001R0104)ABB Group
- Brand: ABB
- Warranty: One Year
- Input Voltage: 230/400 V AC; 110 V DC max; 50/60 Hz
- Operating Temperature: ‑25 °C ~ +55 °CABB Group
- Storage Temperature: ‑40 °C ~ +70 °CABB Group
- Response Time: Thermal overload inverse‑time tripping; magnetic short‑circuit instant trip (C‑curve: 5‑10×In)ABB Group
- Protection Class: IP20 (DIN‑rail modular device; IP40 with enclosure cover)ABB Group
- Accuracy Class: N/A (Thermal‑magnetic miniature circuit breaker MCB)
- Output Frequency: 50‑60 Hz AC
- Rated Current Range: 3‑pole, rated current In = 10 A; C‑curve; rated short‑circuit breaking capacity Icn = 6 kA@400V AC
- Communication Interface: No communication port; red/green real contact position indication window
- Supported Protocols: Complies with IEC/EN 60898‑1 standardABB Group
- Overload Capacity: Thermal protection for overload; magnetic instantaneous trip for short‑circuit; current‑limiting design; screw‑type double‑cage terminals, max conductor 35 mm²
- Dimensions: W 52.5 mm × H 88 mm × D 69 mm; weight approx 0.34 kg; occupies 3‑modular DIN‑rail width
Product Overview
The ABB S203‑C10 is a 3‑pole C‑curve miniature circuit‑breaker of System pro M compact S200 series. It provides both overload thermal protection and short‑circuit magnetic protection for three‑phase circuits. C‑characteristic suits loads with moderate inrush current such as motors, transformers and inductive equipment. Red‑green window shows real contact status for maintenance safety. It solves typical distribution‑system pain‑points: over‑heating risk caused by long‑time circuit overload, destructive short‑circuit fault damage to downstream devices. Panel builders and maintenance technicians benefit from compact DIN‑rail form‑factor, current‑limiting performance and drop‑in spare‑part replacement for existing S200‑series installationsABB Group.
Application Scenarios
- Industrial MCC & control cabinet branch protection: Three‑phase branch protection for small motors, pumps, fans and control power supplies with moderate starting inrush current.
- Commercial building three‑phase distribution cabinet: Overload and short‑circuit protection for lighting, HVAC and power socket three‑phase branches.
- Machine‑tool control cabinet power input branch: Protect three‑phase auxiliary circuit of mechanical equipment.
- Legacy low‑voltage cabinet retrofit & spare replacement: Direct DIN‑rail drop‑in replacement for old S200‑series MCB.
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