ABB S301P-B32NA miniature circuit breaker with a 32 A rated current, Type B tripping characteristic, 1P+N configuration and 25 kA breaking capacity for industrial and commercial circuit protection.
£77.36
The ABB 2CDS381103R0325, also known as the S301P-B32NA, is a high-performance miniature circuit breaker (MCB) designed to protect industrial and commercial electrical installations against overloads and short circuits. Part of the established ABB System pro M compact S300P series, it combines compact construction with a high breaking capacity for dependable protection in demanding power-distribution applications.
Featuring a 32 A rated current, a Type B tripping characteristic and a 25 kA short-circuit breaking capacity, the S301P-B32NA is particularly suited to circuits with low starting currents. Typical applications include resistive loads, electric heating, socket circuits, conventional lighting and general-purpose electrical distribution.
The 1P+N configuration enables the protected phase and neutral conductors to be switched together. Its DIN rail mounting format, fail-safe bi-directional screw terminals and clear contact-position indication support straightforward installation, inspection and maintenance within electrical distribution boards, switchboards and industrial control panels.
The ABB S301P-B32NA uses coordinated thermal and electromagnetic release mechanisms to protect connected wiring and equipment. The thermal element responds to sustained overloads, while the magnetic element rapidly disconnects the circuit when a high short-circuit current is detected.
Its Type B operating characteristic provides fast magnetic tripping and is best suited to electrical loads that do not produce significant start-up currents. This makes it a practical choice for resistive equipment, heating circuits, conventional lighting and general power distribution where rapid fault clearance is required.
| Current | 32 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S300P |
| Model | S301P-B32NA |
| Product ID | 2CDS381103R0325 |
| EAN | 4016779079464 |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 32 A |
| Tripping characteristic | Type B |
| Number of poles | 1P+N |
| Neutral position | Right |
| Rated operational voltage | 240 V AC |
| Rated DC voltage | 72 V DC |
| Frequency | 50 / 60 Hz |
| Rated short-circuit breaking capacity | 25 kA |
| Rated insulation voltage (Ui) | 500 V |
| Rated impulse withstand voltage (Uimp) | 6 kV |
| Release mechanism | Thermal-magnetic |
| Protection rating | IP20; up to IP40 when installed in a suitable enclosure |
| Mounting type | DIN rail mounting |
| Terminal type | Fail-safe bi-directional screw terminals |
| Solid conductor capacity | 0.75–35 mm² |
| Stranded conductor capacity | 0.75–25 mm² |
| Operating temperature | -40°C to +70°C |
| Dimensions (H × W × D) | Approximately 88 × 35 × 69 mm |
| Weight | Approximately 0.248 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The ABB S301P-B32NA protects industrial and commercial electrical circuits against overloads and short circuits. It is particularly suitable for resistive loads and circuits with low starting currents.
The ABB S301P-B32NA has a rated current of 32 A.
A Type B circuit breaker trips rapidly when a short-circuit current reaches approximately three to five times its rated current, making it suitable for loads with limited inrush current.
The ABB S301P-B32NA provides a high 25 kA short-circuit breaking capacity for demanding industrial and commercial installations.
Yes. Its 1P+N configuration switches the protected phase and neutral conductors together, with the neutral positioned on the right.
The circuit breaker mounts onto a standard DIN rail inside an electrical distribution board, switchboard or industrial control panel.
ABB System pro M compact S300P miniature circuit breakers provide dependable overload and short-circuit protection for industrial facilities, commercial buildings, infrastructure projects and high-performance electrical distribution systems.
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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...