ABB 2CDO273106R0258 S203MT-Z1.6NA miniature circuit breaker, a 1.6 A 3 pole Z curve MCB from the ABB System pro M compact S200M range for overload and short-circuit protection.
£249.70
The ABB 2CDO273106R0258, also identified as S203MT-Z1.6NA, is a compact and dependable miniature circuit breaker (MCB) designed for overload and short-circuit protection in electrical distribution and control panel applications. As part of the ABB System pro M compact S200M series, it provides reliable current limiting protection for industrial, commercial and specialist electrical systems.
This MCB uses a Z type tripping characteristic, making it suitable for sensitive circuits where rapid magnetic tripping is required. The S203MT-Z1.6NA combines thermal overload protection with electromechanical short-circuit protection, helping safeguard cables, equipment and connected loads from damaging fault currents.
With a rated current of 1.6 A and a 3-pole configuration, the ABB S203MT-Z1.6NA is well suited to three-phase auxiliary circuits, control systems and precision electrical installations. Its DIN rail mounting design allows straightforward installation inside distribution boards, switchgear assemblies and machine control panels.
Miniature circuit breakers such as the ABB S203MT-Z1.6NA protect electrical circuits by automatically disconnecting the supply when overloads or short-circuit faults occur. This helps prevent damage to wiring, equipment and downstream components while improving overall electrical safety.
The Z curve characteristic is designed for applications that require rapid tripping at lower short-circuit current levels. This makes the device particularly useful for sensitive electronic circuits, control equipment and installations where fast fault interruption is required.
| Current | 1.6 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200M |
| Model | S203MT-Z1.6NA |
| Order code | 2CDO273106R0258 |
| Product type | Miniature circuit breaker |
| Rated current | 1.6 A |
| Number of poles | 3 pole |
| Tripping characteristic | Z curve |
| Rated operational voltage | 230 / 400 V AC |
| Frequency | 50 / 60 Hz |
| Mounting type | DIN rail mounting |
| Protection function | Overload and short-circuit protection |
| Application category | Circuit protection |
| Product range | Modular DIN rail devices |
The ABB 2CDO273106R0258 is used to provide overload and short-circuit protection for low-voltage electrical circuits, particularly in control panels, distribution boards and industrial systems.
This miniature circuit breaker has a rated current of approximately 1.6 A.
The ABB S203MT-Z1.6NA is a 3-pole miniature circuit breaker, making it suitable for three-phase circuit protection.
The Z curve indicates a fast tripping characteristic, typically used for sensitive circuits where rapid disconnection is required during short-circuit conditions.
This MCB is typically installed on DIN rail inside electrical control panels, distribution boards, switchgear cabinets and machinery enclosures.
ABB System pro M compact miniature circuit breakers are widely used by panel builders, installers and electrical engineers to deliver dependable circuit protection in industrial, commercial and automation applications.
● 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...