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ABB S203MT-Z25H10 MCB – S200M – 3P – Z – 25A
ABB S203MT-Z25H10 miniature circuit breaker featuring 3 poles, 25 A rated current, Z curve tripping characteristic and 10 kA breaking capacity for industrial, railway and commercial electrical protection.
Why Choose the ABB S203MT-Z25H10 Miniature Circuit Breaker?
The ABB S203MT-Z25H10 is a high-performance miniature circuit breaker (MCB) designed to provide dependable protection against overloads and short circuits in demanding electrical installations. As part of the ABB S200MT miniature circuit breaker range, this 3-pole device is specifically developed for railway, industrial and commercial applications where reliable circuit protection is essential.
With a 25 A rated current and a Z-type tripping characteristic, the S203MT-Z25H10 offers highly sensitive magnetic tripping, making it ideal for protecting control circuits, signalling equipment and other sensitive electrical loads that require rapid fault disconnection.
Featuring a compact DIN rail mounting design, 10 kA breaking capacity and current-limiting technology, the ABB S203MT-Z25H10 helps minimise fault energy while protecting downstream equipment. It is fully compatible with ABB System pro M compact accessories for flexible panel design.
Key Advantages
- Compact 3-pole miniature circuit breaker for professional electrical installations.
- 25 A rated current suitable for three-phase circuits.
- Z-type tripping characteristic for sensitive short-circuit protection.
- 10 kA rated breaking capacity for dependable fault interruption.
- Current-limiting technology reduces stress on connected equipment.
- Suitable for railway, industrial and commercial applications.
Key Features
- ABB S200MT miniature circuit breaker series.
- 3-pole MCB configuration.
- 25 A rated current.
- Z curve tripping characteristic.
- 10 kA breaking capacity.
- Thermal overload protection.
- Electromagnetic short-circuit protection.
- DIN rail mounting with compact modular construction.
Sensitive Protection for Critical Electrical Circuits
Miniature circuit breakers such as the ABB S203MT-Z25H10 automatically disconnect electrical circuits during overload or short-circuit conditions. This protects wiring, connected equipment and electrical systems while helping reduce maintenance costs and downtime.
The Z curve characteristic is designed for applications requiring highly sensitive magnetic tripping, making this circuit breaker suitable for control, signalling and specialist electrical systems. Its robust construction ensures dependable performance in demanding industrial and railway environments.
Typical Applications
- Industrial control panels.
- Three-phase distribution systems.
- Control and signalling circuits.
- Railway and rolling stock electrical systems.
- Commercial electrical installations.
- OEM machinery and automation equipment.
Technical Specifications
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| Current | 25 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCB | |
| Trip Curve | Z curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | S200MT | |
| Model | S203MT-Z25H10 | |
| MPN | 2CDV273006R0518 | |
| Product type | Miniature circuit breaker | |
| Number of poles | 3P | |
| Rated current | 25 A | |
| Tripping characteristic | Z curve | |
| Rated short-circuit capacity | 10 kA | |
| Rated operational voltage | Up to 440 V AC | |
| Rated insulation voltage | 440 V | |
| Rated impulse withstand voltage | 4 kV | |
| Rated frequency | 50 / 60 Hz | |
| Protection rating | IP20 | |
| Mounting type | DIN rail mounting | |
| Dimensions (H × W × D) | Approx. 88 × 52.5 × 69 mm | |
| Weight | Approx. 0.375 kg |
Frequently Asked Questions
What is the ABB S203MT-Z25H10 used for?
The ABB S203MT-Z25H10 protects three-phase electrical circuits against overloads and short circuits in industrial, commercial and railway applications.
What current rating does this MCB have?
This miniature circuit breaker has a rated current of 25 A.
What does the Z curve characteristic mean?
The Z curve provides highly sensitive magnetic tripping, making it suitable for control circuits and applications requiring rapid fault disconnection.
How many poles does the S203MT-Z25H10 have?
The ABB S203MT-Z25H10 is a 3-pole miniature circuit breaker.
Where is this circuit breaker typically installed?
It is designed for DIN rail mounting inside electrical cabinets, control panels and distribution boards.
Trusted by Electrical Engineers Worldwide
ABB S200MT miniature circuit breakers are trusted by electrical engineers, panel builders and machine manufacturers for delivering reliable circuit protection in demanding industrial, railway and commercial environments.
