ABB 2CDS381103R0065 S301P-B6NA 1P+N miniature circuit breaker with a 6 A rated current, Type B tripping characteristic and 25 kA short-circuit breaking capacity.
£68.45
The ABB 2CDS381103R0065, also known as the ABB S301P-B6NA, is a high-performance 1P+N miniature circuit breaker (MCB) from the ABB System pro M compact S300P series. Developed for industrial and commercial installations, it protects electrical circuits against overloads and short circuits while simultaneously switching the neutral conductor.
The S301P-B6NA combines thermal overload protection with rapid electromagnetic short-circuit tripping in a compact modular housing. An integrated trip indicator, separate contact-position indication, fail-safe terminals and a dual DIN rail release help simplify installation, inspection and maintenance.
With a 6 A rated current, a Type B tripping characteristic and a 25 kA rated short-circuit breaking capacity, the ABB 2CDS381103R0065 is particularly suitable for circuits with low starting currents, including lighting, heating, instrumentation and general control applications.
The ABB S301P-B6NA disconnects the protected circuit when excessive current is caused by a sustained overload or short circuit. Switching the neutral conductor at the same time provides improved isolation during maintenance and helps ensure that the connected circuit is fully disconnected.
Its Type B response characteristic is intended for circuits where starting currents are relatively low. This makes the device well suited to resistive equipment, lighting, electric heating, instrumentation and control wiring while maintaining rapid operation during genuine fault conditions.
| Current | 6 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Product range | System pro M compact S300P |
| Extended product type | S301P-B6NA |
| Manufacturer part number | 2CDS381103R0065 |
| Product type | Miniature Circuit Breaker (MCB) |
| Pole configuration | 1P+N |
| Protected poles | 1 |
| Rated current | 6 A |
| Tripping characteristic | Type B |
| Magnetic tripping range | 3 to 5 × rated current |
| Rated operational voltage | 240 V AC / 72 V DC |
| Rated frequency | 50 / 60 Hz and DC |
| Rated short-circuit breaking capacity | 25 kA |
| Rated service short-circuit capacity | 12.5 kA |
| Rated insulation voltage | 500 V |
| Rated impulse withstand voltage | 6 kV |
| Minimum operating voltage | 12 V AC / DC |
| Overvoltage category | IV |
| Pollution degree | 3 |
| Protection rating | IP20; IP40 when installed in a suitable covered enclosure |
| Terminal capacity | 0.75–35 mm² |
| Mechanical endurance | 20,000 operations |
| Operating temperature | -40°C to +70°C |
| Mounting | 35 mm DIN rail |
| Dimensions (H × W × D) | Approx. 88 × 35 × 69 mm |
| Weight | Approx. 0.235 kg |
| EAN | 4016779079785 |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 and CSA 22.2 No. 235 |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
It protects 6 A industrial and commercial circuits against overloads and short circuits while simultaneously switching the phase and neutral conductors.
The miniature circuit breaker has a rated current of 6 A.
A Type B MCB trips magnetically at approximately three to five times its rated current, making it suitable for resistive loads and circuits with relatively low inrush currents.
The ABB 2CDS381103R0065 has a rated short-circuit breaking capacity of 25 kA and a rated service short-circuit capacity of 12.5 kA.
It mounts onto a standard 35 mm DIN rail and can be supplied from either the top or bottom using its fail-safe terminals.
ABB System pro M compact miniature circuit breakers are specified by electrical engineers, panel builders and machine manufacturers for their high fault-breaking performance, dependable operation and compatibility with professional modular installations.
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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...