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ABB S201MT-Z20NAH01 MCB – S200M – 1P+N – Z – 20A
ABB S201MT-Z20NAH01 single pole 20 A miniature circuit breaker with Z characteristic, 10 kA breaking capacity and integrated H01 auxiliary contact for traction, railway and industrial electrical applications.
Why Choose the ABB S201MT-Z20NAH01 Miniature Circuit Breaker?
The ABB S201MT-Z20NAH01 is a compact and reliable miniature circuit breaker (MCB) designed for dependable overload and short circuit protection in demanding electrical installations. As part of the specialist ABB S200MT series, it is developed for traction, rolling stock and railway applications where robust circuit protection and long service life are essential.
This breaker uses a Z characteristic tripping curve, making it suitable for circuits requiring fast magnetic response to short circuit conditions. It is particularly useful for protecting sensitive control circuits, electronics and equipment where rapid disconnection is required under fault conditions.
With a rated current of 20 A, single pole configuration and an integrated H01 auxiliary contact, the S201MT-Z20NAH01 provides both circuit protection and remote status indication for monitoring, signalling and automation systems.
Key Advantages
- Compact miniature circuit breaker for traction and railway applications.
- 20 A rated current for protected electrical circuits.
- Z characteristic tripping curve for rapid short circuit response.
- Single pole MCB for efficient circuit protection.
- Integrated H01 auxiliary contact for remote signalling.
- DIN rail mounting for quick installation in control panels and distribution boards.
Key Features
- ABB S200MT miniature circuit breaker series.
- 20 A rated current.
- Z characteristic thermal magnetic trip curve.
- Single pole configuration.
- 10 kA short circuit breaking capacity.
- Integrated H01 auxiliary contact.
- Designed for traction and railway electrical systems.
- DIN rail mounting for panel installation.
Reliable Protection for Traction and Control Circuits
The ABB S200MT range is designed especially for transport and railway environments, where circuit protection devices must perform reliably under demanding electrical and mechanical conditions. The Z curve characteristic provides rapid magnetic tripping, helping protect sensitive circuits and equipment from damaging fault currents.
The integrated auxiliary contact supports remote indication of breaker status, making the S201MT-Z20NAH01 well suited to control panels, railway vehicles, signalling equipment and monitored electrical systems.
Typical Applications
- Railway rolling stock electrical systems.
- Traction and transport control panels.
- Signalling and monitoring circuits.
- Industrial automation equipment.
- Control and auxiliary circuits.
- OEM electrical distribution assemblies.
Technical Specifications
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| Phase | Single Phase | |
|---|---|---|
| Poles | 1-pole + N | |
| Current | 20 A | |
| Device Type | MCB | |
| Trip Curve | Z curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | S200MT | |
| Model | S201MT-Z20NAH01 | |
| Product ID | 2CDO271106R0488 | |
| Product type | Miniature circuit breaker | |
| Rated current | 20 A | |
| Tripping characteristic | Z | |
| Number of poles | 1 | |
| Breaking capacity | 10 kA | |
| Auxiliary contact | H01 integrated | |
| Mounting type | DIN rail | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2 | |
| Application | Railway, traction and industrial electrical installations |
Frequently Asked Questions
What is the ABB S201MT-Z20NAH01 used for?
It is used to provide overload and short circuit protection in railway, traction, industrial control and electrical distribution circuits.
What is the rated current of this circuit breaker?
The ABB S201MT-Z20NAH01 has a rated current of 20 A.
What does the Z tripping characteristic mean?
The Z curve provides fast magnetic tripping, making it suitable for sensitive circuits where rapid short circuit protection is required.
Does the S201MT-Z20NAH01 include an auxiliary contact?
Yes. This model includes an integrated H01 auxiliary contact for remote status indication and monitoring.
Where is this MCB typically installed?
It is typically installed on a DIN rail inside railway electrical cabinets, control panels and industrial distribution boards.
Trusted by Railway and Industrial Engineers Worldwide
ABB S200MT miniature circuit breakers are trusted by railway engineers, OEM machine builders and industrial panel manufacturers for reliable circuit protection, compact installation and dependable performance in demanding applications.
