ABB S303P-Z10 three-pole miniature circuit breaker with a 10 A rated current, Type Z tripping characteristic and 25 kA breaking capacity for sensitive industrial circuit protection.
£156.84
The ABB S303P-Z10 (2CDS383001R0428) is a high-performance three-pole miniature circuit breaker (MCB) designed to provide reliable protection against overloads and short circuits in demanding industrial electrical installations. As part of the established ABB S300P series, it combines fast fault response, robust construction and a high breaking capacity for dependable circuit protection.
Manufactured in accordance with international IEC and UL standards, the S303P-Z10 is suitable for integration into industrial control panels, switchgear assemblies and electrical distribution systems. Its compact modular construction supports efficient use of panel space, while fail-safe terminals help reduce the risk of incorrect conductor installation.
With a rated current of 10 A, a Type Z tripping characteristic and a rated short-circuit breaking capacity of 25 kA, this miniature circuit breaker is particularly suitable for protecting sensitive electronic equipment, instrumentation and control circuits that require rapid disconnection at relatively low fault currents.
The ABB S303P-Z10 automatically disconnects a circuit when an overload or short circuit causes excessive current. This helps protect cables, electronic devices and connected equipment while reducing the risk of electrical damage, system downtime and operational disruption.
Its Type Z characteristic trips more rapidly than general-purpose MCB curves when relatively low fault currents occur. This makes the S303P-Z10 particularly suitable for protecting sensitive semiconductor devices, PLC systems, instrumentation and electronic control equipment.
| Current | 10 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | S300P |
| Model | S303P-Z10 |
| Product ID | 2CDS383001R0428 |
| EAN | 4016779077750 |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 10 A |
| Number of poles | 3 |
| Number of protected poles | 3 |
| Tripping characteristic | Type Z |
| Rated AC voltage | 415 V AC |
| Rated DC voltage | 125 V DC |
| Rated insulation voltage | 500 V |
| Rated impulse withstand voltage | 6 kV |
| Rated breaking capacity | 25 kA |
| Frequency | 50 / 60 Hz |
| Power loss | 6 W |
| Overvoltage category | IV |
| Pollution degree | 3 |
| Protection rating | IP20 |
| Mounting type | DIN rail |
| Modular width | 3 modules |
| Recess depth | approx. 69 mm |
| Weight | approx. 0.37 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The S303P-Z10 protects sensitive three-phase electrical circuits against overloads and short circuits in industrial automation, instrumentation and control applications.
The ABB S303P-Z10 has a rated current of 10 A.
A Type Z characteristic provides rapid disconnection at relatively low fault currents, making it suitable for sensitive electronic devices, instrumentation and semiconductor equipment.
The circuit breaker has a rated short-circuit breaking capacity of 25 kA.
The breaker is mounted on a standard DIN rail inside an industrial control panel, switchboard or electrical distribution enclosure.
ABB S300P miniature circuit breakers are trusted by electrical engineers, panel builders and OEM manufacturers for reliable circuit protection, high breaking performance and dependable operation in demanding industrial installations.
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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...