ABB S203-Z1 three-pole miniature circuit breaker with 1 A current rating and Z tripping characteristic for protecting sensitive industrial and commercial electrical circuits.
£173.86
The ABB S203-Z1 is a high-performance three-pole miniature circuit breaker (MCB) from the trusted ABB System pro M Compact S200 series. Featuring a Z tripping characteristic and a 1 A current rating, it is specifically designed to protect sensitive electrical circuits where fast magnetic tripping is essential. It provides dependable protection against overloads and short circuits in industrial, commercial and specialist electrical installations.
Manufactured to ABB's exacting quality standards, the S203-Z1 combines thermal overload protection with instantaneous electromagnetic short circuit protection. Its compact DIN rail mounted design allows quick installation inside distribution boards and control panels while maintaining excellent reliability and long service life.
Designed to comply with internationally recognised standards, this miniature circuit breaker is suitable for machine builders, panel manufacturers, OEM equipment and industrial automation applications requiring dependable circuit protection for sensitive loads.
The ABB S203-Z1 is engineered to disconnect electrical circuits rapidly when overloads or short circuits occur. Its highly sensitive Z characteristic makes it particularly suitable for protecting electronic equipment, control circuits, PLC systems, instrumentation and other applications with low inrush currents.
As part of ABB's widely recognised S200 range, the S203-Z1 offers dependable performance, simple installation and compatibility with a comprehensive range of auxiliary contacts, shunt trips and other modular accessories.
| Current | 1 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M Compact S200 |
| Model | S203-Z1 |
| Product type | Miniature circuit breaker (MCB) |
| Product ID | 2CDS253001R0218 |
| Rated current | 1 A |
| Number of poles | 3 |
| Tripping characteristic | Z |
| Rated operational voltage | Up to 400 V AC |
| Frequency | 50 / 60 Hz |
| Breaking capacity | 6 kA (IEC/EN 60898-1) |
| Protection rating | IP20 |
| Mounting type | DIN rail |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 |
| Dimensions (H × W × D) | Approx. 88 × 52.5 × 69 mm |
| Weight | Approx. 0.38 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The ABB S203-Z1 protects three-phase electrical circuits against overloads and short circuits, particularly where sensitive Z curve protection is required.
The Z curve provides very fast magnetic tripping, making it suitable for protecting sensitive electronic equipment and control circuits with low inrush currents.
This model is a three-pole (3P) miniature circuit breaker designed for three-phase installations.
The ABB S203-Z1 is designed for quick installation onto standard DIN rails within electrical distribution boards and control panels.
The circuit breaker complies with IEC/EN 60898-1, IEC/EN 60947-2 and UL 1077 standards for reliable circuit protection.
ABB System pro M Compact miniature circuit breakers are trusted by electrical engineers, OEM machine builders and industrial panel manufacturers for delivering dependable overcurrent protection across a wide range of industrial and commercial applications.
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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...