ABB S303P-C1.6NA miniature circuit breaker with a 1.6 A rated current, 3P+N configuration, Type C tripping characteristic and 25 kA ultimate breaking capacity.
£191.60
The ABB 2CDS383103R0974, also identified as the S303P-C1.6NA, is an industrial miniature circuit breaker (MCB) designed to protect electrical installations against overloads and short circuits. Part of the ABB System pro M compact S300P series, it combines a low rated current with a high breaking capacity, making it suitable for sensitive control, instrumentation and auxiliary circuits in demanding industrial environments.
Featuring a Type C tripping characteristic, the breaker is suitable for circuits with moderate inrush currents. It uses a delayed thermal release for overload protection and an electromechanical magnetic release for rapid disconnection during short-circuit conditions.
With a rated current of 1.6 A, a 3P+N configuration and an operational voltage of up to 415 V AC, the S303P-C1.6NA is ideal for three-phase control circuits requiring a switched neutral. Its 25 kA ultimate short-circuit breaking capacity, compact DIN-rail format and compatibility with ABB System pro M compact accessories support safe and efficient panel construction.
The ABB S303P-C1.6NA is designed for circuits that carry relatively low operating currents but may be exposed to high prospective short-circuit levels. When an overload occurs, its thermal release disconnects the circuit after a controlled delay. During a short circuit, the magnetic release operates rapidly to limit fault energy and protect conductors and connected equipment.
Its Type C characteristic accommodates the moderate starting currents commonly associated with control transformers, contactor coils, solenoids and similar equipment. This helps reduce nuisance tripping while maintaining dependable protection during genuine electrical faults.
| Current | 1.6 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | System pro M compact S300P |
| Model | S303P-C1.6NA |
| Product ID | 2CDS383103R0974 |
| EAN | 4016779076722 |
| Product type | Miniature circuit breaker |
| Rated current | 1.6 A |
| Pole configuration | 3P+N |
| Protected poles | 3 |
| Neutral pole | Switched |
| Tripping characteristic | Type C |
| Rated operational voltage | 240/415 V AC |
| DC operational voltage | Up to 125 V DC |
| Rated frequency | 50 / 60 Hz |
| Rated insulation voltage | 500 V |
| Rated impulse withstand voltage | 6 kV |
| Ultimate short-circuit breaking capacity | 25 kA |
| Protection function | Overload and short-circuit protection |
| Mounting type | 35 mm DIN rail |
| Standards | IEC/EN 60947-2, IEC/EN 60898-1, UL 1077 and CSA 22.2 No. 235 |
| Approximate dimensions (H × W × D) | 88 × 70 × 69 mm |
| Installation position | Any |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
It protects low-current three-phase industrial circuits against overloads and short circuits, including control, instrumentation and auxiliary power applications.
The circuit breaker has a rated current of 1.6 A.
A Type C characteristic is suitable for circuits with moderate inrush currents, such as control transformers, contactor coils and solenoids.
The ABB S303P-C1.6NA provides an ultimate short-circuit breaking capacity of 25 kA.
The breaker mounts onto a standard 35 mm DIN rail inside a suitable control panel, switchboard or electrical distribution enclosure.
ABB System pro M compact S300P miniature circuit breakers provide high-performance overload and short-circuit protection for industrial control panels, infrastructure, transportation and automation 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...
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...