ABB S203MT-Z16H01 three pole 16A Z characteristic miniature circuit breaker designed for railway, traction and industrial electrical protection with 10 kA short circuit capacity.
The ABB S203MT-Z16H01 is a premium 3-pole miniature circuit breaker (MCB) designed to provide dependable overload and short circuit protection in railway, traction and industrial electrical systems. As part of the proven ABB S200MT miniature circuit breaker series, it is engineered specifically for demanding applications where reliability, safety and long service life are essential.
Featuring a Z characteristic tripping curve, the S203MT-Z16H01 is ideal for protecting sensitive electronic equipment, signalling systems, instrumentation and control circuits. Its rapid magnetic tripping characteristic enables fast disconnection at relatively low fault current levels, helping to minimise the risk of damage to critical electrical equipment.
With a 16 A rated current, 3-pole configuration and 10 kA rated short circuit capacity, the ABB S203MT-Z16H01 is ideally suited to railway rolling stock, industrial control panels, automation systems and OEM machinery requiring dependable three-phase circuit protection.
The ABB S203MT-Z16H01 combines thermal overload protection with rapid electromagnetic short circuit protection to safeguard electrical installations from damaging fault conditions. The Z characteristic enables fast disconnection where sensitive electronic equipment requires enhanced protection against relatively low fault currents.
Its compact modular construction allows simple installation on standard DIN rails whilst maintaining compatibility with ABB accessories, making it an excellent solution for railway electrical systems, industrial automation and modern control panels.
| Current | 16 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | S200MT |
| Model | S203MT-Z16H01 |
| Alternative model | S203MT-Z16 |
| Product ID | 2CDS273006R0468 |
| EAN | 4016779770262 |
| Product type | Miniature Circuit Breaker (MCB) |
| Rated current | 16 A |
| Tripping characteristic | Z |
| Number of poles | 3 |
| Rated operational voltage | Up to 400 V AC |
| Rated insulation voltage | 440 V |
| Rated impulse withstand voltage | 4 kV |
| Frequency | 50 / 60 Hz |
| Rated short circuit capacity | 10 kA |
| Current limiting class | 3 |
| Protection rating | IP20 |
| Mounting type | DIN rail |
| Dimensions (H × W × D) | approx. 88 × 52.5 × 69 mm |
| Weight | approx. 0.375 kg |
It protects three-phase electrical circuits against overloads and short circuits in railway, industrial and automation applications.
The ABB S203MT-Z16H01 has a 16 A rated current.
The Z characteristic provides rapid magnetic tripping at relatively low fault current levels, making it suitable for protecting sensitive electronic equipment and control circuits.
This model features a 3-pole (3P) configuration for three-phase electrical protection.
The circuit breaker is designed for installation on a standard DIN rail inside electrical distribution boards and industrial control panels.
ABB S200MT miniature circuit breakers are trusted by OEMs, panel builders and railway engineers for delivering dependable electrical protection in demanding transportation and industrial environments.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...