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.
