ABB S301P-K1NA miniature circuit breaker featuring a 1 A rated current, Type K tripping characteristic, 1P+N configuration and 25 kA breaking capacity for industrial circuit protection.
£114.09
The ABB 2CDS381103R0217, also known as the S301P-K1NA, is a premium miniature circuit breaker (MCB) engineered to provide dependable protection against overloads and short circuits in demanding industrial electrical installations. Part of the trusted ABB System pro M compact S300P series, it combines exceptional fault-breaking performance with robust construction for long-term reliability.
Featuring a 1 A rated current, a Type K tripping characteristic and a high 25 kA short-circuit breaking capacity, the S301P-K1NA is specifically designed for protecting motors, transformers, solenoids and other inductive loads with high starting currents. The Type K curve allows temporary inrush currents while maintaining rapid protection during genuine fault conditions.
With a 1P+N pole configuration, a 240 V AC rated operational voltage and support for selected 72 V DC applications, the S301P-K1NA provides flexible circuit protection for industrial automation and machinery. Its DIN rail mounting, fail-safe screw terminals and clear contact position indication simplify installation and maintenance.
The ABB S301P-K1NA automatically disconnects electrical circuits when overload or short-circuit conditions occur, helping protect wiring, motors and connected industrial equipment from damage. Its thermal and magnetic tripping mechanisms deliver dependable protection while accommodating the higher starting currents typical of inductive loads.
The ABB S300P range is widely used by machine builders, panel manufacturers and industrial maintenance engineers who require high fault-breaking performance, long service life and dependable operation in demanding electrical installations.
| Current | 1 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S300P |
| Model | S301P-K1NA |
| Product ID | 2CDS381103R0217 |
| EAN | 4016779079594 |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 1 A |
| Tripping characteristic | Type K |
| Number of poles | 1P+N |
| Rated AC voltage | 240 V AC |
| Rated DC voltage | 72 V DC |
| Frequency | 50 / 60 Hz |
| Short-circuit breaking capacity | 25 kA |
| Protection rating | IP20 (IP40 when installed in a suitable enclosure) |
| Mounting type | DIN rail mounting |
| Terminal capacity | 0.75 to 35 mm² solid, 0.75 to 25 mm² stranded |
| Insulation voltage (Ui) | 500 V |
| Impulse withstand voltage (Uimp) | 6 kV |
| Operating temperature | -40°C to +70°C |
| Dimensions (H × W × D) | approx. 88 × 35 × 69 mm |
| Weight | approx. 0.248 kg |
| Country of origin | Germany |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
This miniature circuit breaker protects industrial electrical circuits against overloads and short circuits, particularly circuits supplying motors and other inductive equipment.
The ABB S301P-K1NA has a rated current of 1 A.
Type K circuit breakers are designed for circuits with higher inrush currents, making them suitable for motors, transformers and inductive electrical equipment.
The ABB S301P-K1NA provides a high 25 kA short-circuit breaking capacity.
The circuit breaker is designed for installation onto a standard DIN rail inside electrical distribution boards and industrial control panels.
ABB System pro M compact S300P miniature circuit breakers are trusted worldwide for delivering reliable overload and short-circuit protection across industrial automation, machinery and commercial electrical installations.
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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...