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ABB S201MT-Z20H01 MCB – S200M – 1P – Z – 20A
ABB S201MT-Z20H01 1 pole 20 A miniature circuit breaker with Z characteristic and 10 kA breaking capacity for railway, traction and industrial circuit protection.
Why Choose the ABB S201MT-Z20H01 Miniature Circuit Breaker?
The ABB S201MT-Z20H01 is a premium 1 pole miniature circuit breaker (MCB) from the ABB S200MT railway series, designed to provide reliable overload and short circuit protection for railway, traction and demanding industrial electrical installations. Featuring a Z characteristic trip curve, it is specifically engineered for sensitive electrical and electronic circuits that require rapid magnetic tripping and dependable fault protection.
The S200MT range is developed for rolling stock and railway infrastructure, combining current limiting technology with excellent mechanical durability and a compact DIN rail mounted design. Fully compliant with IEC/EN 60898-1 and IEC/EN 60947-2, it delivers dependable protection while remaining compatible with ABB System pro M Compact accessories.
With a 20 A rated current, 10 kA breaking capacity and 1 pole configuration, the ABB S201MT-Z20H01 is ideal for protecting signalling equipment, sensitive control circuits, automation systems and industrial electrical installations requiring reliable circuit protection.
Key Advantages
- Compact 1 pole miniature circuit breaker for railway and industrial applications.
- 20 A rated current for dependable circuit protection.
- Z characteristic trip curve for sensitive electronic equipment.
- 10 kA short circuit breaking capacity.
- DIN rail mounting for quick installation.
- Compatible with ABB System pro M Compact accessories.
Key Features
- ABB S200MT railway miniature circuit breaker series.
- 20 A rated current.
- Z tripping characteristic.
- 1 pole configuration.
- 10 kA rated breaking capacity.
- Thermal overload and electromagnetic short circuit protection.
- Current limiting Class 3 construction.
- Compact 17.5 mm modular width.
Reliable Circuit Protection for Sensitive Electrical Systems
The ABB S201MT-Z20H01 protects electrical installations by automatically disconnecting the circuit during overload and short circuit conditions. The thermal tripping mechanism responds to sustained overloads, while the electromagnetic mechanism provides rapid disconnection during fault currents to minimise equipment damage and system downtime.
Its Z characteristic makes it particularly suitable for sensitive electronic equipment, signalling systems and precision control circuits with low inrush currents. The compact modular design enables straightforward installation 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.
Technical Specifications
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| Current | 20 A | |
|---|---|---|
| Phase | Single Phase | |
| Poles | 1-pole | |
| Device Type | MCB | |
| Trip Curve | Z curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | S200MT | |
| Model | S201MT-Z20H01 | |
| MPN | 2CDS271006R0488 | |
| Product type | Miniature circuit breaker (MCB) | |
| Rated current | 20 A | |
| Tripping characteristic | Z | |
| Number of poles | 1 | |
| Rated operational voltage | 230 V AC | |
| Rated insulation voltage | 440 V | |
| Rated impulse withstand voltage | 4 kV | |
| Rated frequency | 50 / 60 Hz | |
| Rated short circuit breaking capacity | 10 kA | |
| Rated ultimate breaking capacity (Icu) | 15 kA at 230 V AC | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Dimensions (H × W × D) | approx. 88 × 17.5 × 69 mm | |
| Weight | approx. 0.125 kg |
Frequently Asked Questions
What is the ABB S201MT-Z20H01 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-Z20H01 has a 20 A rated current.
What does the Z characteristic mean?
The Z trip curve provides very fast magnetic tripping, making it ideal for protecting sensitive electronic equipment and control circuits with low inrush currents.
What is the breaking capacity of this MCB?
The S201MT-Z20H01 provides a 10 kA short circuit breaking capacity.
How is the S201MT-Z20H01 installed?
The circuit breaker is designed for installation onto a standard DIN rail within electrical distribution boards and industrial control panels.
Trusted by Engineers Worldwide
ABB S200MT miniature circuit breakers are trusted by railway operators, machine builders and industrial engineers for dependable circuit protection, compact installation and long-term reliability in demanding electrical applications.
