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ABB S203-B32NA MCB – S200 – 3P+N – B – 32A
ABB S203-B32NA miniature circuit breaker, a 3-pole plus neutral 32 A B curve MCB from the System pro M compact S200 range with 6 kA breaking capacity for residential, commercial and industrial circuit protection.
£116.20
Why Choose the ABB S203-B32NA Miniature Circuit Breaker?
The ABB S203-B32NA is a dependable 3-pole plus neutral miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short circuits. Part of the ABB System pro M compact S200 range, it provides reliable modular circuit protection for residential, commercial and industrial electrical installations.
With a B tripping characteristic, the S203-B32NA is designed for circuits with low inrush currents, making it suitable for general distribution, lighting, resistive loads and building services applications. Its current-limiting design helps reduce fault energy and supports safe, reliable operation.
Rated at 32 A with a 3P+N configuration and 6 kA short-circuit breaking capacity, the ABB S203-B32NA provides effective protection for three-phase circuits with neutral switching. Its DIN rail mounting format enables straightforward installation in distribution boards, switchboards and control panels.
Key Advantages
- 3-pole plus neutral miniature circuit breaker for three-phase and neutral circuits.
- 32 A rated current suitable for distribution and power circuits.
- B curve tripping characteristic for circuits with low inrush currents.
- 6 kA breaking capacity for dependable short-circuit protection.
- Part of the ABB System pro M compact S200 range.
- DIN rail mounting for efficient installation in panels and distribution boards.
Key Features
- ABB S203-B32NA miniature circuit breaker.
- S200 series modular protection device.
- 3 protected poles plus neutral.
- 32 A rated current.
- B characteristic trip curve.
- 6 kA rated short-circuit capacity.
- Thermal-magnetic tripping for overload and short-circuit protection.
- Compatible with ABB System pro M compact accessories.
Reliable Protection for Three-Phase and Neutral Circuits
Miniature circuit breakers such as the ABB S203-B32NA automatically disconnect electrical circuits when excessive current is detected. The delayed thermal tripping mechanism provides overload protection, while the electromechanical tripping mechanism responds quickly to short-circuit faults.
The B curve characteristic is intended for circuits where low inrush currents are expected during normal operation. This makes the S203-B32NA suitable for general power distribution, lighting circuits, resistive loads and installations requiring three-phase protection with neutral switching.
Typical Applications
- Three-phase distribution boards with neutral switching.
- Commercial and industrial electrical installations.
- Lighting and resistive load circuits.
- Control panels and switchboards.
- Building services and electrical distribution systems.
- Panel building and OEM electrical assemblies.
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 | 6 kA | |
| Manufacturer | ABB | |
| Series | S200 | |
| Model | S203-B32NA | |
| Product ID | 2CDS253103R0325 | |
| EAN | 4016779532341 | |
| Product type | Miniature circuit breaker | |
| Number of poles | 3P+N | |
| Protected poles | 3 | |
| Rated current | 32 A | |
| Tripping characteristic | B curve | |
| Rated short-circuit capacity | 6 kA | |
| Rated operational voltage | 400 V AC | |
| Maximum operational voltage | 440 V AC | |
| Minimum operational voltage | 12 V AC / 12 V DC | |
| Rated insulation voltage | 440 V | |
| Rated impulse withstand voltage | 4 kV | |
| Dielectric test voltage | 2 kV | |
| Input voltage type | AC | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 | |
| Mounting type | DIN rail | |
| Terminal type | Screw terminals | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S203-B32NA used for?
The ABB S203-B32NA is used to protect three-phase and neutral electrical circuits against overloads and short circuits in residential, commercial and industrial installations.
What is the rated current of the ABB S203-B32NA?
The S203-B32NA has a rated current of 32 A.
How many poles does the S203-B32NA have?
This miniature circuit breaker has a 3P+N configuration, providing three protected poles plus neutral.
What does the B curve mean on this breaker?
The B curve tripping characteristic is designed for circuits with low inrush currents, making it suitable for lighting, resistive loads and general distribution circuits.
Where is the ABB S203-B32NA typically installed?
It is typically installed on a DIN rail inside distribution boards, control panels, switchboards or electrical enclosures.
Trusted by Electrical Engineers Worldwide
ABB System pro M compact S200 miniature circuit breakers are trusted by electrical contractors, panel builders and engineers for reliable modular circuit protection across residential, commercial and industrial installations.
