ABB 2CDS381001R0158 S301P-Z0.5 single-pole miniature circuit breaker with a 0.5 A rating, Type Z tripping characteristic and 25 kA breaking capacity for sensitive industrial circuits.
£63.10
The ABB 2CDS381001R0158, also known as the ABB S301P-Z0.5, is a high-performance single-pole miniature circuit breaker (MCB) designed to protect sensitive industrial electrical circuits against overloads and short circuits. As part of the advanced ABB System pro M compact S300P series, it combines precise fault detection with a high breaking capacity for dependable protection in demanding installations.
This miniature circuit breaker uses thermal and electromagnetic tripping mechanisms to disconnect a circuit when unsafe current conditions occur. Its highly sensitive Type Z characteristic is particularly suitable for electronic equipment, control systems and semiconductor-based devices that require rapid protection against relatively low overcurrents.
With a rated current of 0.5 A, a Type Z tripping characteristic and a rated short-circuit breaking capacity of up to 25 kA, the ABB 2CDS381001R0158 is ideal for protecting sensitive loads in industrial automation and control applications. Its compact single-module design enables straightforward installation on a standard DIN rail.
Miniature circuit breakers such as the ABB S301P-Z0.5 automatically isolate electrical circuits when overload or short-circuit conditions are detected. The thermal mechanism responds to sustained overloads, while the electromagnetic mechanism provides rapid disconnection during sudden fault-current events.
The Type Z characteristic offers more sensitive magnetic operation than standard Type B or Type C breakers. This makes the ABB 2CDS381001R0158 especially suitable for electronic components, programmable controllers, instrumentation and other low-current equipment that could be damaged by relatively small overcurrents.
| Current | 0.5 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S300P |
| Model | S301P-Z0.5 |
| Product ID | 2CDS381001R0158 |
| Product type | Miniature circuit breaker |
| Rated current | 0.5 A |
| Number of poles | 1 |
| Number of protected poles | 1 |
| Tripping characteristic | Type Z |
| Rated AC voltage | 240 V AC |
| Rated DC voltage | 72 V DC |
| Voltage type | AC / DC |
| Frequency | 50 / 60 Hz |
| Rated insulation voltage | 500 V AC |
| Rated impulse withstand voltage | 6 kV |
| Rated short-circuit breaking capacity | 25 kA |
| Current-limiting class | 3 |
| Protection rating | IP20; IP40 when installed in a suitable enclosure |
| Mounting type | DIN rail |
| Modular width | 1 module |
| Dimensions (H × W × D) | approx. 88 × 17.5 × 67.6 mm |
| Weight | approx. 0.124 kg |
| Operating temperature | -40 to +70 °C |
| EAN | 4016779080460 |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2 and UL 1077 |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
It protects sensitive low-current electrical and electronic circuits against overloads and short circuits in industrial control and automation systems.
The ABB S301P-Z0.5 has a rated current of 0.5 A.
A Type Z miniature circuit breaker responds rapidly to relatively low fault currents, making it suitable for sensitive electronic equipment, instrumentation and semiconductor circuits.
The circuit breaker provides a rated short-circuit breaking capacity of up to 25 kA, depending on the applicable standard and operating voltage.
It is designed for mounting on a standard DIN rail inside an electrical distribution board, switchboard or industrial control panel.
ABB System pro M compact S300P miniature circuit breakers are trusted by automation engineers, panel builders and industrial manufacturers for precise circuit protection, high fault interruption capability and reliable long-term performance.
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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...