ABB S301P-Z0.5NA miniature circuit breaker with 0.5 A rated current, Type Z tripping characteristic, 1P+N configuration and 25 kA breaking capacity for sensitive electronic equipment.
£122.79
The ABB 2CDS381103R0158, also known as the S301P-Z0.5NA, is a premium miniature circuit breaker (MCB) designed to provide dependable protection against overloads and short circuits in industrial, commercial and specialist control applications. As part of the renowned ABB System pro M compact S300P series, it delivers exceptional performance, high breaking capacity and outstanding reliability in demanding electrical installations.
Featuring a 0.5 A rated current, a Type Z tripping characteristic and a high 25 kA breaking capacity, this circuit breaker is specifically designed to protect highly sensitive electronic equipment, PLCs, semiconductor devices and precision control circuits. The fast tripping response helps safeguard valuable components from even relatively small overloads and fault currents.
With a 1P+N pole configuration, 240 V AC rated voltage and compact DIN rail mounting, the S301P-Z0.5NA is easy to install within distribution boards, automation panels and industrial control cabinets. Its integrated trip indicator and fail-safe terminals further improve installation safety and maintenance efficiency.
The ABB S301P-Z0.5NA is engineered for applications where sensitive electronic equipment requires very rapid fault detection. Its Type Z characteristic provides fast disconnection during overloads and short circuits, helping minimise damage to delicate control devices and electronic components.
Its compact construction, robust mechanical design and high short-circuit breaking capacity make it an excellent choice for industrial automation, instrumentation systems, laboratories and OEM equipment where dependable circuit protection is essential.
| Current | 0.5 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S300P |
| Model | S301P-Z0.5NA |
| Product ID | 2CDS381103R0158 |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 0.5 A |
| Tripping characteristic | Type Z |
| Number of poles | 1P+N |
| Rated AC voltage | 240 V AC |
| Rated DC voltage | 72 V DC |
| Frequency | 50 / 60 Hz |
| Breaking capacity | 25 kA |
| Protection rating | IP20 (IP40 when installed in an enclosure) |
| Mounting type | DIN rail mounting |
| Insulation voltage | 500 V |
| Impulse withstand voltage | 6 kV |
| Dimensions (H × W × D) | approx. 88 × 35 × 69 mm |
| Weight | approx. 0.248 kg |
| Country of origin | Germany |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
This miniature circuit breaker protects sensitive electronic circuits against overloads and short circuits in industrial and commercial electrical installations.
The ABB S301P-Z0.5NA has a 0.5 A rated current.
Type Z circuit breakers provide very fast tripping, making them ideal for protecting highly sensitive electronic equipment and semiconductor devices.
The ABB S301P-Z0.5NA offers a high 25 kA short-circuit breaking capacity.
The circuit breaker is designed for installation onto a standard DIN rail inside electrical distribution boards and industrial control panels.
ABB System pro M compact S300P miniature circuit breakers are trusted worldwide for delivering reliable overload and short-circuit protection for industrial, commercial and specialist electronic 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...