ABB S203M-Z2 3-pole 2 A Z curve miniature circuit breaker from the System pro M compact S200M range, designed for sensitive circuit protection in industrial, commercial and control panel applications.
£150.84
The ABB S203M-Z2 is a reliable 3-pole miniature circuit breaker (MCB) from the ABB System pro M compact S200M series. Designed for professional electrical installations, it provides dependable protection against overloads and short circuits in industrial, commercial and OEM control panel applications.
Featuring a Z tripping characteristic, the S203M-Z2 is particularly suitable for sensitive circuits requiring fast magnetic tripping at low fault current levels. This makes it ideal for protecting electronic equipment, semiconductor devices, measuring circuits, PLC systems and automation control circuits.
With a 2 A rated current, 3-pole configuration and 10 kA breaking capacity, the ABB S203M-Z2 combines compact DIN rail installation with ABB's proven current limiting performance, helping reduce fault energy and protect connected equipment.
Miniature circuit breakers such as the ABB S203M-Z2 protect electrical circuits by disconnecting the supply when overload or short circuit conditions occur. The thermal mechanism responds to sustained overloads, while the magnetic mechanism provides rapid disconnection during short circuit faults.
The Z curve characteristic offers fast tripping at relatively low fault current levels, making this MCB ideal for sensitive electrical systems where rapid protection is required. Its 3-pole construction supports three-phase circuit protection in a compact DIN rail mounted format.
| Current | 2 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200M |
| Model | S203M-Z2 |
| Manufacturer Part Number | 2CDS273001R0278 |
| EAN | 4016779601115 |
| Product type | Miniature Circuit Breaker (MCB) |
| Rated current | 2 A |
| Number of poles | 3P |
| Tripping characteristic | Z |
| Rated operational voltage | Up to 440 V AC |
| Frequency | 50 / 60 Hz |
| Breaking capacity | 10 kA |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2 |
| Protection rating | IP20 |
| Mounting type | DIN rail |
| Terminal type | Bi-directional cylinder-lift terminal |
| Operating temperature | -25 to +55 °C |
| Dimensions (H × W × D) | approx. 88 × 52.5 × 69 mm |
| Weight | approx. 0.375 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The ABB S203M-Z2 is used to protect electrical circuits against overloads and short circuits, especially sensitive control and electronic circuits requiring fast tripping behaviour.
The S203M-Z2 has a 2 A rated current.
The Z curve provides rapid magnetic tripping at low fault current levels, making it suitable for sensitive electronic equipment, control circuits and semiconductor protection.
The ABB S203M-Z2 is a 3-pole miniature circuit breaker, suitable for three-phase circuit protection.
The S203M-Z2 provides a 10 kA breaking capacity, supporting reliable short circuit protection in professional electrical installations.
ABB System pro M compact S200M miniature circuit breakers are trusted by panel builders, electrical contractors and automation engineers for reliable protection, compact installation and proven performance in demanding electrical systems.
● 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...