ABB 2CDS381001R0318 S301P-Z3 single-pole miniature circuit breaker with a 3 A rating, Type Z tripping characteristic and 25 kA breaking capacity for sensitive industrial electronic circuits.
£63.10
The ABB 2CDS381001R0318, also known as the S301P-Z3, is a high-performance single-pole miniature circuit breaker (MCB) from the ABB System pro M compact S300P series. It provides dependable overload and short-circuit protection for industrial installations containing sensitive electronic equipment and low-current control circuits.
Its Type Z tripping characteristic provides a highly sensitive magnetic response, making the S301P-Z3 particularly suitable for PLCs, semiconductor devices, instrumentation, measuring equipment and electronic control systems. Rapid fault disconnection helps protect delicate components that may be damaged by comparatively low short-circuit currents.
With a 3 A rated current, compact single-pole construction and a rated short-circuit breaking capacity of up to 25 kA, the ABB 2CDS381001R0318 delivers robust industrial protection while occupying only one DIN rail module. Fail-safe terminals and clear operating-status indication support safe installation and efficient maintenance.
The ABB S301P-Z3 combines two complementary protection mechanisms. Its thermal release responds to sustained overload conditions, while its electromagnetic release rapidly disconnects the circuit when a short circuit occurs.
The Type Z characteristic provides magnetic tripping at approximately two to three times the rated current. This sensitive response makes the breaker suitable for delicate electronic circuits where fault currents below the operating threshold of conventional Type B or Type C breakers could still damage connected equipment.
| Current | 3 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S300P |
| Model | S301P-Z3 |
| Product ID | 2CDS381001R0318 |
| EAN | 4016779080286 |
| Product type | Miniature circuit breaker |
| Rated current | 3 A |
| Number of poles | 1 |
| Number of protected poles | 1 |
| Tripping characteristic | Type Z |
| Magnetic tripping range | Approximately 2 to 3 × rated current |
| Rated operational voltage | 240 V AC / 72 V DC |
| Rated frequency | 50 / 60 Hz and DC |
| Rated insulation voltage (Ui) | 500 V AC |
| Rated impulse withstand voltage (Uimp) | 6 kV |
| Ultimate short-circuit breaking capacity (Icu) | 25 kA |
| Service short-circuit breaking capacity (Ics) | 12.5 kA |
| Protection rating | IP20; IP40 when installed in a suitable enclosure |
| Terminal type | Fail-safe bidirectional cylinder-lift terminals |
| Maximum solid or stranded conductor | 35 mm² |
| Maximum flexible conductor | 25 mm² |
| Mounting type | 35 mm DIN rail |
| Mounting position | Any |
| Modular width | 1 module |
| Dimensions (H × W × D) | Approximately 88 × 17.5 × 69 mm |
| Weight | Approximately 0.124 kg |
| Operating temperature | -40 °C to +70 °C |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 and CSA C22.2 No. 235 |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
It protects sensitive industrial electronic circuits against overloads and short circuits, including PLC, instrumentation, semiconductor and control-system applications.
The ABB S301P-Z3 has a rated current of 3 A.
A Type Z circuit breaker has a highly sensitive magnetic response, typically operating at approximately two to three times its rated current. It is intended for electronic equipment that requires rapid fault disconnection.
The ABB S301P-Z3 has an ultimate short-circuit breaking capacity of up to 25 kA under applicable IEC conditions.
Yes. The single-pole breaker is suitable for applications up to 72 V DC, subject to the applicable electrical standards and installation requirements.
It mounts onto a standard 35 mm DIN rail and uses fail-safe terminals designed to support secure conductor and busbar connections.
ABB System pro M compact S300P miniature circuit breakers are specified by electrical engineers, panel builders and OEMs for dependable industrial circuit protection, high fault-interruption performance and compatibility with internationally recognised standards.
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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...