Why Choose the ABB S203MT-Z20 Miniature Circuit Breaker?
The ABB S203MT-Z20 is a high performance 3-pole miniature circuit breaker (MCB) designed specifically for railway, rolling stock and demanding industrial applications. Part of the proven ABB S200MT series, this circuit breaker provides dependable overload and short circuit protection whilst meeting the stringent requirements of railway installations.
Designed for reliability and long service life, the S203MT-Z20 combines thermal overload protection with rapid electromagnetic short circuit protection. Its Z characteristic tripping curve makes it particularly suitable for protecting sensitive circuits with low inrush current requirements, ensuring fast fault detection whilst minimising unnecessary interruptions.
With a 20 A rated current, 3-pole configuration and 10 kA breaking capacity, the ABB S203MT-Z20 offers outstanding protection for electrical distribution systems in rail vehicles, industrial control panels and specialist automation equipment. Its compact DIN rail mounted design enables quick installation and compatibility with ABB System pro M Compact accessories.
Key Advantages
- Compact 3-pole miniature circuit breaker for professional installations.
- 20 A rated current with Z characteristic tripping curve.
- 10 kA breaking capacity for dependable fault protection.
- Designed specifically for railway and rolling stock applications.
- Compatible with ABB System pro M Compact accessories.
- DIN rail mounting for straightforward installation and maintenance.
Key Features
- ABB S200MT railway miniature circuit breaker series.
- 20 A rated current.
- 3-pole configuration.
- Z characteristic tripping curve.
- 10 kA rated short circuit breaking capacity.
- Thermal overload and electromagnetic short circuit protection.
- DIN rail mounting.
- Suitable for railway, transport and industrial control applications.
Reliable Protection for Railway and Industrial Installations
The ABB S200MT range has been engineered for demanding environments where dependable electrical protection is essential. Designed for railway applications compliant with recognised industry standards, these circuit breakers provide consistent protection against overloads and short circuits whilst maintaining reliable operation in challenging conditions.
The Z characteristic tripping curve makes the S203MT-Z20 suitable for specialist circuits requiring rapid fault response with lower magnetic trip thresholds. Its compatibility with ABB accessories allows flexible panel design and simplified maintenance throughout the installation lifecycle.
Typical Applications
- Railway rolling stock.
- Train electrical distribution systems.
- Industrial control panels.
- Automation equipment.
- Machine building.
- Specialist low voltage distribution systems.
