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ABB S202MT-Z20H10 MCB – S200M – 2P – Z – 20A
ABB S202MT-Z20H10 miniature circuit breaker from the S200MT railway series featuring 2-pole protection, Z curve tripping characteristic, 20 A rating and 10 kA breaking capacity.
Why Choose the ABB S202MT-Z20H10 Miniature Circuit Breaker?
The ABB S202MT-Z20H10 is a specialist miniature circuit breaker (MCB) from the ABB S200MT railway and traction series, engineered to provide dependable overload and short-circuit protection for railway, transport and demanding industrial applications. Featuring a 2-pole configuration, a Z curve tripping characteristic and a 20 A rated current, it is ideal for protecting sensitive circuits that require rapid magnetic tripping and reliable fault isolation.
The ABB S200MT range has been specifically developed for railway rolling stock and traction systems, delivering excellent vibration resistance, current-limiting performance and dependable operation in harsh environments. It combines thermal overload protection with fast electromagnetic short-circuit protection to safeguard wiring, signalling equipment and electrical control systems.
Its compact DIN rail mounting design enables straightforward installation within railway vehicles, industrial control panels and switchgear assemblies. Manufactured to ABB's high engineering standards, the S202MT-Z20H10 delivers long service life and reliable protection where safety and operational continuity are essential.
Key Advantages
- Reliable miniature circuit breaker for overload and short-circuit protection.
- 2-pole configuration for simultaneous protection of two conductors.
- 20 A rated current for sensitive control and power circuits.
- Z curve characteristic provides rapid magnetic tripping.
- Designed specifically for railway and traction applications.
- DIN rail mounting for straightforward installation and maintenance.
Key Features
- ABB S200MT miniature circuit breaker series.
- 2-pole MCB configuration.
- Z curve tripping characteristic.
- 20 A rated current.
- Current-limiting design for enhanced protection.
- Thermal overload and electromagnetic short-circuit protection.
- Designed for demanding railway and industrial environments.
- Compatible with ABB System pro M compact accessories.
Reliable Circuit Protection for Sensitive Railway Systems
The ABB S202MT-Z20H10 automatically disconnects electrical circuits during overload or short-circuit conditions, helping protect sensitive equipment, wiring and control systems from excessive current while improving operational safety.
Its Z curve characteristic provides rapid magnetic tripping at comparatively low fault currents, making it particularly suitable for electronic equipment, signalling systems, instrumentation and railway control circuits where rapid fault clearance is essential.
Typical Applications
- Railway rolling stock electrical systems.
- Traction power and signalling systems.
- Sensitive electronic control circuits.
- Industrial automation panels.
- Electrical switchgear assemblies.
- Transport infrastructure installations.
Technical Specifications
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| Current | 20 A | |
|---|---|---|
| Poles | 2-pole | |
| Device Type | MCB | |
| Trip Curve | Z curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | S200MT | |
| Model | S202MT-Z20H10 | |
| Manufacturer Part Number | 2CDV272006R0488 | |
| Product type | Miniature circuit breaker | |
| Number of poles | 2P | |
| Tripping characteristic | Z curve | |
| Rated current | 20 A | |
| Rated operational voltage | 400 V AC | |
| Rated insulation voltage | 440 V | |
| Rated frequency | 50 / 60 Hz | |
| Breaking capacity | 10 kA | |
| Protection rating | IP20 | |
| Mounting type | DIN rail mounting |
Frequently Asked Questions
What is the ABB S202MT-Z20H10 used for?
The ABB S202MT-Z20H10 protects sensitive electrical circuits against overloads and short circuits in railway, transport and industrial applications.
What current rating does the S202MT-Z20H10 have?
The breaker has a rated current of 20 A.
What does the Z curve characteristic mean?
Z curve breakers provide rapid magnetic tripping at relatively low fault currents, making them suitable for sensitive electronic equipment, instrumentation and control circuits.
How many poles does the ABB S202MT-Z20H10 have?
The S202MT-Z20H10 is a 2-pole miniature circuit breaker.
Where is this breaker typically installed?
It is designed for DIN rail installation within railway vehicles, transport infrastructure, industrial switchgear and electrical control panels.
Trusted by Railway and Industrial Engineers Worldwide
ABB S200MT miniature circuit breakers are trusted worldwide for delivering reliable circuit protection in railway vehicles, transport infrastructure and demanding industrial environments.
