ABB S203P-Z1 three-pole 1 A Z curve miniature circuit breaker from the System pro M compact S200P series, designed for overload and short circuit protection in sensitive low current industrial and commercial electrical installations.
The ABB S203P-Z1 is a precision three-pole miniature circuit breaker (MCB) designed to provide dependable overload and short circuit protection for sensitive low current electrical circuits. As part of the trusted ABB System pro M compact S200P series, it delivers reliable protection for industrial, commercial and OEM applications where accurate circuit protection is essential.
This miniature circuit breaker features a Z trip characteristic, making it suitable for highly sensitive circuits, instrumentation, control circuits, electronic equipment and semiconductor protection applications. Its current limiting design helps reduce fault energy during short circuit conditions, improving installation safety while helping protect connected components and wiring.
With a rated current of 1 A, a three-pole configuration and a high breaking capacity of up to 25 kA, the ABB S203P-Z1 is ideal for specialist three-phase protection applications where rapid fault response and accurate low current protection are required.
Miniature circuit breakers such as the ABB S203P-Z1 are designed to automatically disconnect electrical circuits during overload or short circuit conditions. This helps prevent cable damage, component failure and potential safety hazards within electrical installations.
The Z curve characteristic is suitable for sensitive electronic and control applications where fast magnetic tripping is required. This makes the S203P-Z1 a practical choice for low current circuits where protection speed, accuracy and reliability are critical.
| Current | 1 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200P |
| Model | S203P-Z1 |
| Product ID | 2CDS283001R0218 |
| EAN | 4016779593748 |
| Product type | Miniature circuit breaker |
| Rated current | 1 A |
| Number of poles | 3 |
| Trip characteristic | Z curve |
| Rated operational voltage | 400 V AC |
| Rated frequency | 50 / 60 Hz |
| Rated insulation voltage | 440 V |
| Rated impulse withstand voltage | 4 kV |
| Breaking capacity | Up to 25 kA |
| Current limiting class | Class 3 |
| Protection rating | IP20 |
| Mounting type | DIN rail |
| Dimensions (H × W × D) | 88 × 52.5 × 69 mm |
| Weight | Approx. 0.44 kg |
The ABB S203P-Z1 is used to protect low current three-phase electrical circuits against overloads and short circuits, particularly in sensitive control, instrumentation and electronic applications.
The S203P-Z1 has a rated current of 1 A.
A Z curve miniature circuit breaker is designed for highly sensitive circuits where fast magnetic tripping is required, making it suitable for electronic equipment, control circuits and semiconductor protection.
The ABB S203P-Z1 is a three-pole miniature circuit breaker for protecting three-phase circuits.
The S203P-Z1 is discontinued by the manufacturer. Please contact us if you need help identifying a suitable replacement product.
ABB System pro M compact miniature circuit breakers are widely trusted by electrical contractors, panel builders and automation engineers for dependable circuit protection, compact installation and long service life in professional electrical systems.
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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...