ABB S203P-Z6NA System pro M compact S200P miniature circuit breaker with 3P+N configuration, 6 A rated current, Z tripping characteristic and 25 kA breaking capacity for sensitive industrial and commercial electrical protection.
The ABB S203P-Z6NA is a premium 3P+N miniature circuit breaker (MCB) from the ABB System pro M compact S200P series. Designed to provide dependable overload and short circuit protection, it is ideally suited to industrial automation, OEM machinery, commercial switchboards and sensitive electrical installations where rapid fault protection is essential.
Featuring a Z tripping characteristic and a 6 A rated current, the S203P-Z6NA is specifically developed for protecting sensitive electronic equipment, PLC systems, instrumentation and semiconductor devices. Its advanced current-limiting construction helps minimise fault energy, reducing the risk of damage to valuable electrical components while maintaining reliable system operation.
With a 3P+N configuration and a 25 kA ultimate short circuit breaking capacity, the S203P-Z6NA delivers outstanding protection for demanding three-phase electrical installations. The compact DIN rail mounted design allows straightforward installation while remaining fully compatible with ABB's extensive range of modular accessories.
The ABB S203P-Z6NA combines delayed thermal overload protection with rapid electromagnetic short circuit protection to safeguard sensitive electrical installations. Its current-limiting construction helps minimise the energy released during fault conditions, reducing stress on cables, switchgear and connected electronic equipment.
The Z curve characteristic is intended for applications requiring rapid tripping at relatively low fault currents. This makes the S203P-Z6NA particularly suitable for instrumentation, PLC systems, semiconductor protection, control circuits and other sensitive industrial electronics.
| Current | 6 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200P |
| Model | S203P-Z6NA |
| Product ID | 2CDS283103R0378 |
| EAN | 4016779594271 |
| Product type | Miniature Circuit Breaker (MCB) |
| Rated current | 6 A |
| Tripping characteristic | Z |
| Number of poles | 3P+N |
| Total poles | 4 |
| Rated operational voltage | 400 V AC |
| Rated insulation voltage | 440 V |
| Rated impulse withstand voltage | 4 kV |
| Frequency | 50 / 60 Hz |
| Rated short circuit capacity (Icn) | 12.5 kA at 230/400 V AC |
| Rated ultimate short circuit breaking capacity (Icu) | 25 kA at 230/400 V AC |
| Rated service short circuit breaking capacity (Ics) | 12.5 kA at 400 V AC |
| Current limiting class | 3 |
| Protection rating | IP20 (IP40 when installed in a suitable enclosure) |
| Mounting type | DIN rail |
| Width | 4 modular spacings |
| Built-in depth | 69 mm |
| Dimensions (H × W × D) | approx. 88 × 70 × 69 mm |
| Weight | approx. 0.56 kg |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077, CSA 22.2 No. 235 |
The S203P-Z6NA protects sensitive three-phase electrical circuits against overloads and short circuits in industrial, commercial and OEM applications.
This miniature circuit breaker has a 6 A rated current.
A Z curve MCB provides rapid tripping at relatively low fault currents, making it suitable for sensitive electronic equipment, instrumentation and semiconductor protection.
The S203P-Z6NA is a 3P+N device with three protected poles and a switched neutral.
Yes. The S200P range supports ABB auxiliary contacts, shunt trips, undervoltage releases, motor operators and other modular accessories.
ABB System pro M compact miniature circuit breakers are trusted by panel builders, electrical contractors and industrial engineers for delivering 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...