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ABB S201MT-K8NAH10 MCB – S200M – 1P+N – K – 8A
ABB S201MT-K8NAH10 miniature circuit breaker, an 8 A K curve MCB with switched neutral for railway, traction and industrial circuit protection applications.
Why Choose the ABB S201MT-K8NAH10 Miniature Circuit Breaker?
The ABB S201MT-K8NAH10 is a robust miniature circuit breaker with switched neutral, designed to provide reliable overload and short-circuit protection for railway, traction and demanding industrial electrical systems. As part of the ABB S200MT series, it combines compact installation, dependable protection and long-term performance for specialist electrical applications.
Featuring a K tripping characteristic, this MCB is suitable for circuits with higher inrush currents, including transformers, inductive loads, control equipment and auxiliary circuits. The switched neutral configuration disconnects the neutral conductor together with the protected pole, supporting improved isolation in control panels and distribution assemblies.
With an 8 A rated current, 10 kA short-circuit breaking capacity and DIN rail mounting format, the ABB S201MT-K8NAH10 is ideal for railway systems, industrial automation panels, OEM machinery and auxiliary power circuits where compact design and dependable operation are essential.
Key Advantages
- 8 A miniature circuit breaker for railway and industrial protection applications.
- K characteristic suitable for circuits with higher inrush currents.
- Switched neutral configuration for improved circuit isolation.
- 10 kA breaking capacity for dependable short-circuit protection.
- Designed for railway, traction and industrial applications.
- Compact DIN rail format for efficient panel installation.
Key Features
- ABB S200MT series.
- 8 A rated current.
- 1 protected pole plus switched neutral.
- K tripping characteristic.
- 10 kA rated short-circuit breaking capacity.
- Current limiting miniature circuit breaker design.
- Suitable for 50 / 60 Hz AC systems.
- DIN rail mounting for modular electrical assemblies.
Reliable Protection for Railway and Industrial Systems
The ABB S200MT range is designed for traction, railway and industrial environments where dependable circuit protection is required in compact electrical assemblies. The S201MT-K8NAH10 provides effective overload and short-circuit protection while supporting reliable operation in demanding installations.
Its K characteristic helps manage circuits where temporary inrush currents may occur, reducing unwanted tripping while maintaining effective fault protection. Combined with a switched neutral pole and compact modular design, it is a practical choice for railway engineers, panel builders and OEM machine manufacturers.
Typical Applications
- Railway and rolling stock electrical systems.
- Traction auxiliary circuits.
- Industrial control panels.
- Motor, transformer and inductive load circuits.
- Automation and control equipment.
- OEM machinery and specialist electrical systems.
Technical Specifications
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| Phase | Single Phase | |
|---|---|---|
| Current | 8 A | |
| Poles | 1-pole + N | |
| Device Type | MCB | |
| Trip Curve | K curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | S200MT | |
| Model | S201MT-K8NAH10 | |
| Manufacturer Part Number | 2CDV271106R0407 | |
| Product type | Miniature Circuit Breaker (MCB) | |
| Rated current | 8 A | |
| Number of poles | 1 protected pole + switched neutral | |
| Tripping characteristic | K | |
| Rated operational voltage | 230 V AC | |
| Maximum operational voltage | 253 V AC | |
| Rated insulation voltage | 440 V | |
| Rated impulse withstand voltage | 4 kV | |
| Frequency | 50 / 60 Hz | |
| Breaking capacity | 10 kA | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2 | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Dimensions (H × W × D) | approx. 88 × 35 × 69 mm | |
| Weight | approx. 0.25 kg |
Frequently Asked Questions
What is the ABB S201MT-K8NAH10 used for?
It is used for overload and short-circuit protection in railway, traction, industrial and auxiliary electrical circuits.
What does the 8 A rating mean?
The 8 A rated current means the breaker is designed to protect circuits with a nominal current requirement of up to 8 amps.
What does switched neutral mean?
Switched neutral means the neutral conductor is switched together with the protected pole, providing improved isolation when the breaker is operated.
What is the K tripping characteristic suitable for?
The K curve is suitable for circuits with higher inrush currents, including transformers, inductive loads, control circuits and specialist equipment.
Can the ABB S201MT-K8NAH10 be DIN rail mounted?
Yes. It is designed for DIN rail mounting inside electrical control panels, distribution boards and modular enclosures.
Trusted by Railway and Industrial Engineers Worldwide
ABB S200MT miniature circuit breakers are trusted by panel builders, railway engineers and industrial automation specialists for reliable protection, compact installation and long-term operational performance.
