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ABB S201MT-Z50H01 MCB – S200M – 1P – Z – 50A
ABB S201MT-Z50H01 1 pole 50 A miniature circuit breaker with Z characteristic and 10 kA breaking capacity for railway, traction and industrial circuit protection.
Why Choose the ABB S201MT-Z50H01 Miniature Circuit Breaker?
The ABB S201MT-Z50H01 is a high performance 1 pole miniature circuit breaker (MCB) from the ABB S200MT railway series, designed for dependable overload and short circuit protection in railway, traction and demanding industrial electrical systems. Featuring a Z characteristic trip curve, it is suited to sensitive electrical and electronic circuits that require rapid magnetic tripping and fast fault clearance.
The S200MT range is engineered for environments where safety, durability and reliable circuit protection are essential. Its current limiting construction, compact modular design and DIN rail mounting format make it suitable for railway panels, industrial distribution boards, automation systems and OEM electrical assemblies.
With a 50 A rated current, 10 kA breaking capacity and 1 pole configuration, the ABB S201MT-Z50H01 provides robust protection for higher current sensitive circuits where reliable fault interruption and compact installation are required.
Key Advantages
- Compact 1 pole miniature circuit breaker for railway and industrial applications.
- 50 A rated current for higher current circuit protection.
- Z characteristic trip curve for sensitive electrical and electronic equipment.
- 10 kA short circuit breaking capacity.
- DIN rail mounting for quick installation.
- Suitable for traction, signalling, automation and industrial control systems.
Key Features
- ABB S200MT miniature circuit breaker series.
- 50 A rated current.
- Z tripping characteristic.
- 1 pole configuration.
- 10 kA rated breaking capacity.
- Thermal overload and electromagnetic short circuit protection.
- Current limiting design for improved fault performance.
- Compact 17.5 mm modular width.
Reliable Circuit Protection for Sensitive Electrical Systems
Miniature circuit breakers such as the ABB S201MT-Z50H01 protect electrical installations by automatically disconnecting the circuit during overload or short circuit conditions. The thermal tripping mechanism responds to sustained overloads, while the electromagnetic mechanism provides rapid disconnection during fault currents.
Its Z characteristic makes it suitable for sensitive electronic equipment, signalling systems and precision control circuits with low inrush currents. The compact modular format allows straightforward integration into railway electrical panels, industrial control cabinets and OEM equipment.
Typical Applications
- Railway rolling stock electrical systems.
- Rail infrastructure and signalling equipment.
- Industrial control panels.
- Automation and machine control systems.
- Sensitive electronic circuit protection.
- OEM electrical assemblies and panel building.
Technical Specifications
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| Current | 50 A | |
|---|---|---|
| Phase | Single Phase | |
| Poles | 1-pole | |
| Device Type | MCB | |
| Trip Curve | Z curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | S200MT | |
| Model | S201MT-Z50H01 | |
| MPN | 2CDS271006R0578 | |
| Product type | Miniature circuit breaker (MCB) | |
| Rated current | 50 A | |
| Tripping characteristic | Z | |
| Number of poles | 1 | |
| Rated operational voltage | 230 V AC / 220 V DC | |
| Input voltage type | AC/DC | |
| Rated insulation voltage | 440 V | |
| Rated impulse withstand voltage | 4 kV | |
| Rated frequency | 50 / 60 Hz | |
| Short circuit breaking capacity | 10 kA | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Dimensions (H × W × D) | approx. 88 × 17.5 × 69 mm | |
| Weight | approx. 0.135 kg |
Frequently Asked Questions
What is the ABB S201MT-Z50H01 used for?
It provides overload and short circuit protection for railway, industrial and automation electrical circuits, particularly those containing sensitive electronic equipment.
What is the rated current of this circuit breaker?
The ABB S201MT-Z50H01 has a 50 A rated current.
What does the Z characteristic mean?
The Z trip curve provides fast magnetic tripping, making it suitable for protecting sensitive electronic equipment and control circuits with low inrush currents.
What is the breaking capacity of this MCB?
The S201MT-Z50H01 provides a 10 kA short circuit breaking capacity.
How is the S201MT-Z50H01 installed?
The circuit breaker is designed for DIN rail mounting inside electrical distribution boards, industrial control panels and machine cabinets.
Trusted by Engineers Worldwide
ABB S200MT miniature circuit breakers are trusted by railway engineers, panel builders and industrial maintenance teams for reliable circuit protection, compact installation and dependable performance in demanding electrical systems.
