ABB S203P-Z2NA System pro M compact S200P miniature circuit breaker with 3P+N configuration, 2 A rated current, Z tripping characteristic and high breaking capacity for sensitive industrial and commercial circuit protection.
The ABB S203P-Z2NA is a high-performance 3P+N miniature circuit breaker (MCB) from the ABB System pro M compact S200P series. Designed for sensitive circuit protection, it provides reliable overload and short circuit protection for industrial control panels, automation systems, commercial distribution boards and OEM electrical installations.
This miniature circuit breaker features a Z tripping characteristic and a 2 A rated current, making it particularly suitable for circuits requiring fast disconnection at lower fault currents. It is ideal for protecting sensitive electronic devices, instrumentation, PLC systems and semiconductor-based equipment where rapid fault response is important.
With a 3P+N configuration and a high 25 kA ultimate short circuit breaking capacity, the S203P-Z2NA delivers professional-grade protection in demanding three-phase electrical systems. Its compact DIN rail mounted design supports efficient installation within distribution boards, machine cabinets and control panels.
Miniature circuit breakers such as the ABB S203P-Z2NA protect electrical installations by automatically disconnecting the circuit during overload or short circuit conditions. The delayed thermal trip mechanism responds to overloads, while the electromagnetic trip mechanism provides rapid disconnection during short circuit faults.
The Z curve characteristic is designed for circuits requiring fast tripping at relatively low fault currents. This makes the S203P-Z2NA suitable for electronic equipment, control systems, instrumentation and semiconductor protection where quick disconnection can help reduce equipment damage.
| Current | 2 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200P |
| Model | S203P-Z2NA |
| Product type | Miniature Circuit Breaker (MCB) |
| Product ID | 2CDS283103R0278 |
| EAN | 4016779594240 |
| Rated current | 2 A |
| Tripping characteristic | Z |
| Number of poles | 3P+N |
| Total poles | 4 |
| Rated voltage | 400 V AC |
| Rated insulation voltage | 440 V |
| Rated impulse withstand voltage | 4 kV |
| Frequency | 50 / 60 Hz |
| Ultimate short circuit breaking capacity | 25 kA |
| Rated short circuit breaking capacity | 12.5 kA at 400 V AC |
| Current limiting class | 3 |
| Pollution degree | 3 |
| Overvoltage category | III |
| Protection rating | IP20 |
| Mounting type | DIN rail |
| Width | 4 modular spacings |
| Built-in depth | 69 mm |
| Operating temperature | -25 to +55 °C |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077, CSA 22.2 No. 235 |
| Dimensions (H × W × D) | approx. 88 × 70 × 69 mm |
| Weight | approx. 0.56 kg |
The S203P-Z2NA is used to protect sensitive three-phase electrical circuits against overloads and short circuits in industrial, commercial and OEM applications.
This miniature circuit breaker has a 2 A rated current.
A Z curve MCB is designed for sensitive circuits that require fast tripping at relatively low fault currents, making it suitable for electronic devices, instrumentation and semiconductor protection.
The S203P-Z2NA is a 3P+N device with three protected poles and a switched neutral.
Yes. The S203P-Z2NA is designed for standard DIN rail mounting inside electrical panels, distribution boards and machine control cabinets.
ABB System pro M compact miniature circuit breakers are widely used by panel builders, electrical contractors and industrial engineers for dependable circuit protection, high fault performance and long-term reliability in demanding electrical installations.
● 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...