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ABB S203MT-Z0.5H01 MCB – S200M – 3P – Z – 0.5A
ABB S203MT-Z0.5H01 three-pole miniature circuit breaker with a 0.5 A rated current, Z curve tripping characteristic and 10 kA short-circuit breaking capacity for sensitive industrial and railway applications.
Why Choose the ABB S203MT-Z0.5H01 Miniature Circuit Breaker?
The ABB S203MT-Z0.5H01 is a specialist three-pole miniature circuit breaker (MCB) from the robust ABB System pro M compact S200MT series. It is specifically developed for traction, railway and demanding industrial applications where highly sensitive protection against short circuits is required while maintaining dependable overload protection.
Featuring a Z curve tripping characteristic and a 0.5 A rated current, the S203MT-Z0.5H01 is ideal for protecting sensitive electronic equipment, signalling circuits, PLC inputs, control systems and semiconductor devices. Its current-limiting design reduces fault energy, helping to protect both connected equipment and electrical wiring.
The ABB S203MT-Z0.5H01 is designed for standard DIN rail mounting inside electrical distribution boards, switchboards and industrial control panels. Its compact three-pole construction, robust performance and compatibility with ABB System pro M accessories make it an excellent choice for professional installations.
Key Advantages
- Reliable three-pole miniature circuit breaker for sensitive electrical protection.
- 0.5 A rated current for low-current circuits.
- Z curve tripping characteristic for highly sensitive electronic loads.
- 10 kA short-circuit breaking capacity at 230/400 V AC.
- DIN rail mounting for straightforward installation.
- Compatible with ABB System pro M compact accessories.
Key Features
- ABB System pro M compact S200MT series.
- Three protected poles (3P).
- 0.5 A rated current.
- Z characteristic tripping curve.
- 10 kA rated short-circuit capacity.
- Thermal and magnetic trip mechanisms.
- Current-limiting design.
- Compact modular DIN rail mounted construction.
Reliable Protection for Sensitive Electronic Circuits
The ABB S203MT-Z0.5H01 combines thermal overload protection with instantaneous magnetic short-circuit protection. Its Z characteristic provides rapid operation at comparatively low fault currents, making it particularly suitable for protecting sensitive electronic equipment and semiconductor devices.
Designed for traction, railway and industrial applications, the S200MT range delivers dependable performance under demanding operating conditions while remaining fully compatible with ABB's System pro M accessory range.
Typical Applications
- Railway and traction systems.
- Industrial control panels.
- PLC and automation systems.
- Sensitive electronic equipment.
- Semiconductor protection circuits.
- OEM machinery and panel building.
Technical Specifications
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| Current | 0.5 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCB | |
| Trip Curve | Z curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | System pro M compact S200MT | |
| Model | S203MT-Z0.5H01 | |
| Product ID | 2CDO273006R0158 | |
| Product type | Miniature circuit breaker (MCB) | |
| Rated current | 0.5 A | |
| Number of poles | 3 | |
| Tripping characteristic | Z | |
| Rated operational voltage | 400 V AC | |
| Frequency | 50 / 60 Hz | |
| Rated short-circuit capacity | 10 kA | |
| 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-Z0.5H01 used for?
The ABB S203MT-Z0.5H01 protects sensitive three-phase electrical circuits against overloads and short circuits, particularly in railway, industrial and electronic applications.
What does the Z curve characteristic mean?
A Z curve miniature circuit breaker provides very sensitive magnetic tripping, making it suitable for protecting electronic equipment and semiconductor devices.
What is the rated current of the ABB S203MT-Z0.5H01?
The ABB S203MT-Z0.5H01 has a 0.5 A rated current.
How many poles does this MCB have?
This model is a three-pole (3P) miniature circuit breaker.
How is the ABB S203MT-Z0.5H01 installed?
The device is designed for standard DIN rail mounting inside electrical distribution boards, switchboards and industrial control panels.
Trusted by Electrical Professionals Worldwide
ABB System pro M compact miniature circuit breakers are trusted worldwide by electrical engineers, machine builders and railway specialists for reliable protection, compact installation and long service life.
