ABB S203P-B32NA System pro M compact S200P miniature circuit breaker with 3P+N configuration, 32 A rated current, B tripping characteristic and high breaking capacity for commercial and industrial electrical protection.
The ABB S203P-B32NA is a premium 3P+N miniature circuit breaker (MCB) from the ABB System pro M compact S200P series. Designed to provide dependable overload and short circuit protection, it is ideal for commercial buildings, industrial machinery, OEM equipment and electrical distribution systems where reliable circuit protection is essential.
Featuring a B tripping characteristic and a 32 A rated current, the S203P-B32NA is designed for circuits with low inrush currents, making it particularly suitable for lighting installations, power distribution and general electrical circuits. Its advanced current-limiting design helps minimise fault energy, protecting cables, switchgear and connected equipment.
With a 3P+N configuration and a 15 kA breaking capacity at 230 V AC and 12.5 kA at 400 V AC, this compact DIN rail mounted miniature circuit breaker delivers dependable protection for demanding three-phase installations. Compatibility with ABB's extensive range of accessories provides additional flexibility for modern electrical panels and distribution systems.
The ABB S203P-B32NA combines delayed thermal overload protection with rapid electromagnetic short circuit protection to safeguard electrical installations and connected equipment. Its current-limiting design reduces thermal and mechanical stress during fault conditions, improving system reliability and extending equipment life.
The B curve characteristic is intended for circuits with relatively low inrush currents, making this miniature circuit breaker ideal for lighting circuits, resistive loads, commercial distribution systems and general-purpose electrical installations.
| Current | 32 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200P |
| Model | S203P-B32NA |
| Product ID | 2CDS283103R0325 |
| EAN | 4016779590136 |
| Product type | Miniature Circuit Breaker (MCB) |
| Rated current | 32 A |
| Tripping characteristic | B |
| Number of poles | 3P+N |
| Total poles | 4 |
| Rated operational voltage | 400 V AC |
| Rated insulation voltage | 440 V |
| Rated impulse withstand voltage | 4 kV |
| Frequency | 50 / 60 Hz |
| Rated short circuit breaking capacity | 15 kA at 230 V AC, 12.5 kA at 400 V AC |
| Rated service breaking capacity | 11.3 kA at 400 V AC |
| Current limiting class | 3 |
| Protection rating | IP20 |
| Mounting type | DIN rail |
| Width | 4 modular spacings |
| Dimensions (H × W × D) | approx. 88 × 70 × 69 mm |
| Weight | approx. 0.56 kg |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077, CSA 22.2 No. 235 |
The S203P-B32NA protects three-phase electrical circuits against overloads and short circuits in commercial, industrial and OEM applications.
This miniature circuit breaker has a 32 A rated current.
A B curve MCB is designed to trip quickly on relatively low overcurrents, making it suitable for lighting circuits, resistive loads and general electrical distribution.
The S203P-B32NA is a 3P+N device with three protected poles and a switched neutral.
Yes. The S200P range supports ABB auxiliary contacts, shunt trips, undervoltage releases and other modular accessories.
ABB System pro M compact miniature circuit breakers are trusted by electrical contractors, panel builders and industrial engineers for dependable protection, excellent reliability and long service life in demanding electrical installations.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...