ABB S303P-Z1 three-pole miniature circuit breaker with a 1 A rated current, Z curve tripping characteristic and 25 kA breaking capacity for sensitive industrial and electronic circuits.
£219.61
The ABB S303P-Z1 is a high-performance three-pole miniature circuit breaker (MCB) designed to protect sensitive electrical circuits against overloads and short circuits. As part of the established ABB System pro M compact S300P series, it provides precise protection for industrial, commercial and OEM electrical installations.
Manufactured in accordance with international IEC and UL standards, the S303P-Z1 combines reliable electrical performance with a compact modular design. Its DIN rail mounted format enables straightforward installation within distribution boards, switchboards and industrial control panels.
Featuring a 1 A rated current, a sensitive Z curve tripping characteristic and a 25 kA breaking capacity, this miniature circuit breaker is particularly suitable for electronic equipment, semiconductor devices, control circuits and other loads requiring rapid protection against relatively low overcurrents.
The ABB S303P-Z1 automatically disconnects the electrical supply when an overload or short circuit occurs, helping protect conductors, control devices and connected equipment from damage. Its Z curve characteristic provides magnetic tripping at lower overcurrent levels than B, C or D curve circuit breakers.
This sensitive operating characteristic makes the S303P-Z1 particularly suitable for electronic components and control systems that may be damaged by short-duration overcurrents. Its high breaking capacity also supports dependable operation in industrial installations with elevated prospective fault currents.
| Current | 1 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | System pro M compact S300P |
| Model | S303P-Z1 |
| SKU | 2CDS383001R0218 |
| EAN | 4016779077989 |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 1 A |
| Tripping characteristic | Z Curve |
| Number of poles | 3 |
| Rated operational voltage | 415 V AC |
| Maximum operating voltage | 480Y/277 V AC, 125 V DC |
| Frequency | 50 / 60 Hz |
| Breaking capacity | 25 kA |
| Rated insulation voltage | 500 V |
| Protection rating | IP20 |
| Mounting type | 35 mm DIN rail |
| Dimensions (H × W × D) | approx. 88 × 52.5 × 69 mm |
| Weight | approx. 0.372 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
It protects sensitive three-phase electrical circuits against overloads and short circuits in industrial automation, electronic equipment and control applications.
The ABB S303P-Z1 has a rated current of 1 A.
A Z curve circuit breaker trips at relatively low overcurrent levels, making it suitable for sensitive electronic devices, semiconductor equipment and control circuits.
The circuit breaker provides a 25 kA short-circuit breaking capacity for dependable protection in demanding electrical installations.
The breaker is designed for mounting on a standard 35 mm DIN rail inside switchboards, electrical distribution boards and industrial control panels.
ABB System pro M compact miniature circuit breakers are trusted by electrical engineers, panel builders and automation specialists for accurate circuit protection, dependable performance and long operational life.
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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...