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ABB S201M-B8NA MCB – S200M – 1P+N – B – 8A
ABB S201M-B8NA 1P+N 8 A B curve miniature circuit breaker from the System pro M compact S200M range with switched neutral and 10 kA breaking capacity.
Why Choose the ABB S201M-B8NA Miniature Circuit Breaker?
The ABB S201M-B8NA is a compact and dependable miniature circuit breaker with switched neutral from the professional ABB System pro M compact S200M series. Designed to provide reliable overload and short circuit protection, this 8 A Type B MCB is suitable for low current electrical circuits where both phase protection and neutral switching are required.
The S201M-B8NA combines ABB’s current limiting technology with delayed thermal overload protection and electromechanical short circuit protection. This helps reduce fault energy during short circuit events while providing safe, consistent disconnection for connected cables, equipment and control circuits.
With an 8 A rated current, B tripping characteristic, 1 protected pole plus switched neutral and a 10 kA breaking capacity, the ABB S201M-B8NA is ideal for lighting circuits, auxiliary circuits, control equipment, distribution boards and low current electrical installations. Its DIN rail mounting format allows straightforward installation inside consumer units, switchboards and industrial control panels.
Key Advantages
- Compact miniature circuit breaker with switched neutral.
- 8 A rated current for low current circuit protection.
- B curve tripping characteristic for standard electrical loads.
- 1 protected pole plus switched neutral configuration.
- 10 kA breaking capacity for dependable short circuit protection.
- Current limiting design helps reduce fault energy.
- Thermal overload and electromechanical short circuit protection.
- DIN rail mounting for quick installation in panels and distribution boards.
Key Features
- ABB System pro M compact S200M series.
- 1P+N configuration with one protected pole and switched neutral.
- 8 A rated current.
- B curve tripping characteristic.
- 10 kA rated short circuit breaking capacity.
- Current limiting miniature circuit breaker design.
- Delayed thermal tripping mechanism for overload protection.
- Electromechanical tripping mechanism for short circuit protection.
- Compact two-module format for DIN rail installations.
Reliable Protection with Switched Neutral Isolation
Miniature circuit breakers such as the ABB S201M-B8NA automatically disconnect electrical circuits during overload or short circuit conditions. The thermal trip element responds to sustained overloads, while the magnetic trip element provides rapid disconnection during short circuit faults.
The B curve characteristic is suited to circuits with relatively low inrush current, including lighting, auxiliary and general distribution applications. The switched neutral configuration provides additional isolation by switching the neutral conductor alongside the protected phase conductor.
Typical Applications
- Lighting and auxiliary circuits.
- Commercial distribution boards.
- Residential consumer units.
- Industrial control panels.
- Low current control equipment.
- Installations requiring phase protection with switched neutral isolation.
Technical Specifications
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| Phase | Single Phase | |
|---|---|---|
| Poles | 1-pole + N | |
| Current | 8 A | |
| Device Type | MCB | |
| Trip Curve | B curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | System pro M compact S200M | |
| Model | S201M-B8NA | |
| MPN | 2CDS271103R0085 | |
| EAN | 4016779602150 | |
| Product type | Miniature circuit breaker (MCB) | |
| Rated current | 8 A | |
| Configuration | 1P+N | |
| Protected poles | 1 | |
| Neutral | Switched neutral | |
| Tripping characteristic | B | |
| Rated operational voltage | 230 V AC | |
| Rated insulation voltage | 440 V | |
| Rated impulse withstand voltage | 4 kV | |
| Frequency | 50 / 60 Hz | |
| Breaking capacity | 10 kA | |
| Current limiting class | 3 | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Dimensions (H × W × D) | approx. 88 × 35 × 69 mm | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2 |
Frequently Asked Questions
What is the ABB S201M-B8NA used for?
The S201M-B8NA is used to protect low current electrical circuits against overloads and short circuits while also switching the neutral conductor.
What is the rated current of the ABB S201M-B8NA?
The ABB S201M-B8NA has a rated current of 8 A.
What does the B curve characteristic mean?
A B curve MCB is designed for circuits with relatively low inrush current, making it suitable for standard lighting, auxiliary and general distribution applications.
Does this circuit breaker include a switched neutral?
Yes. The ABB S201M-B8NA has 1 protected pole plus a switched neutral, commonly described as a 1P+N configuration.
Where is this circuit breaker typically installed?
It is designed for DIN rail installation inside consumer units, distribution boards, switchboards and industrial 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 circuit protection, compact installation and consistent performance in modern electrical systems.
