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ABB S203M-B32NA MCB – S200M – 3P+N – B – 32A
ABB S203M-B32NA miniature circuit breaker from the System pro M compact S200M range featuring a 32 A rating, B curve tripping characteristic, 3+NP configuration and up to 10 kA breaking capacity for reliable circuit protection.
£91.47
Why Choose the ABB S203M-B32NA Miniature Circuit Breaker?
The ABB S203M-B32NA is a high quality miniature circuit breaker (MCB) designed to provide reliable overload and short-circuit protection in residential, commercial and industrial electrical installations. As part of the professional ABB System pro M compact S200M series, it delivers dependable circuit protection for distribution boards, switchboards and electrical control panels.
This miniature circuit breaker features a B curve tripping characteristic, making it suitable for circuits with low inrush currents, including lighting, socket outlet circuits and general-purpose electrical distribution. Its current-limiting design helps reduce fault energy and protect cables, equipment and connected loads.
With a rated current of 32 A, a 3+NP pole configuration and a breaking capacity of up to 10 kA at 230 / 400 V AC, the S203M-B32NA is ideal for three-phase installations requiring neutral switching. Its compact DIN rail format enables quick installation in modern modular electrical enclosures.
Key Advantages
- Reliable ABB miniature circuit breaker for professional circuit protection.
- 32 A rated current for three-phase electrical circuits.
- B curve tripping characteristic for low inrush current applications.
- 3+NP configuration for three-phase systems with neutral switching.
- Current-limiting performance helps protect cables and connected equipment.
- DIN rail mounting for fast installation in distribution boards and control panels.
Key Features
- ABB System pro M compact S200M series.
- 32 A rated current.
- B curve tripping characteristic.
- 3+NP pole configuration.
- Up to 10 kA breaking capacity at 230 / 400 V AC.
- Thermal tripping mechanism for overload protection.
- Electromechanical tripping mechanism for short-circuit protection.
- Compact modular design for DIN rail mounting.
Reliable Protection for Three-Phase Electrical Systems
Miniature circuit breakers such as the ABB S203M-B32NA automatically disconnect electrical circuits during overload or short-circuit conditions. This helps protect cables, connected equipment and electrical infrastructure while supporting safe and compliant installation design.
The ABB S200M range is engineered for professional applications requiring compact dimensions, dependable operation and high breaking capacity. The B curve characteristic makes this model suitable for standard circuits where fast disconnection is required for low inrush current loads.
Typical Applications
- Commercial distribution boards and switchboards.
- Three-phase power distribution circuits.
- Lighting and socket outlet circuits.
- Building services electrical installations.
- Industrial control panels.
- OEM electrical panels and modular enclosures.
Technical Specifications
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| Phase | Three Phase | |
|---|---|---|
| Current | 32 A | |
| Poles | 3-pole + N | |
| Device Type | MCB | |
| Trip Curve | B curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | System pro M compact S200M | |
| Model | S203M-B32NA | |
| Product type | Miniature circuit breaker | |
| Product ID | 2CDS273103R0325 | |
| EAN | 4016779549813 | |
| Rated current | 32 A | |
| Tripping characteristic | B curve | |
| Pole configuration | 3+NP | |
| Rated operational voltage | 230 / 400 V AC | |
| Rated insulation voltage | 440 V | |
| Frequency | 50 / 60 Hz | |
| Rated breaking capacity | up to 10 kA | |
| Protection rating | IP20 | |
| Current limiting class | 3 | |
| Mounting type | DIN rail mounting | |
| Dimensions (H × W × D) | approx. 88 × 70 × 69 mm | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2 | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S203M-B32NA used for?
The ABB S203M-B32NA is used to protect three-phase electrical circuits against overloads and short circuits in distribution boards, switchboards and control panels.
What current rating does this MCB have?
This miniature circuit breaker has a rated current of 32 A.
What does the B curve characteristic mean?
A B curve MCB is designed for circuits with low inrush currents, such as lighting, socket outlet and general distribution circuits.
What does the 3+NP configuration mean?
The S203M-B32NA provides three protected phase poles together with a neutral pole, making it suitable for three-phase systems requiring neutral switching.
Where is this miniature circuit breaker installed?
It is designed for DIN rail installation inside distribution boards, switchboards and electrical control panels.
Trusted by Electrical Professionals Worldwide
ABB System pro M compact miniature circuit breakers are trusted by electricians, panel builders and industrial engineers for reliable protection, compact installation and long-term performance in modern electrical systems.
