ABB S301P-K0.2NA 1P+N miniature circuit breaker with 0.2 A rating, K tripping characteristic and 25 kA short-circuit breaking capacity for specialised industrial control circuits.
£114.09
The ABB 2CDS381103R0087, designated S301P-K0.2NA, is a specialist 1P+N miniature circuit breaker from the ABB System pro M compact S300P range. Featuring a 0.2 A rated current and a K tripping characteristic, it has been specifically developed to protect highly sensitive industrial circuits that experience very high transient inrush currents whilst still requiring dependable overload and short-circuit protection.
The K characteristic combines a higher instantaneous magnetic trip threshold than standard Type C devices with precise thermal protection, making it particularly suitable for transformers, solenoid valves, control relays, contactors and other inductive loads. Simultaneous switching of the neutral conductor also provides improved circuit isolation during maintenance.
With a 25 kA rated short-circuit breaking capacity, robust industrial construction and compatibility with the ABB System pro M compact accessory range, the S301P-K0.2NA is an excellent solution for protecting specialised low-current control and automation circuits.
Unlike standard Type B or Type C miniature circuit breakers, the ABB S301P-K0.2NA is designed specifically for circuits supplying inductive components that generate high momentary starting currents. The higher magnetic trip threshold of the K characteristic significantly reduces nuisance tripping whilst maintaining excellent protection against genuine overload and fault conditions.
Its exceptionally low 0.2 A current rating makes it particularly suitable for specialised instrumentation, electronic control systems, transformer secondary protection and precision industrial equipment where reliable low-current protection is essential.
| Current | 0.2 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S300P |
| Extended Product Type | S301P-K0.2NA |
| Manufacturer Part Number | 2CDS381103R0087 |
| Product Type | Miniature Circuit Breaker |
| Configuration | 1P+N |
| Protected Poles | 1 |
| Rated Current | 0.2 A |
| Tripping Characteristic | K |
| Magnetic Tripping Range | 8–12 × In |
| Rated Operational Voltage | 240 V AC / 72 V DC |
| Rated Frequency | 50 / 60 Hz and DC |
| Rated Short-Circuit Breaking Capacity (Icn) | 25 kA |
| Rated Service Breaking Capacity (Ics) | 12.5 kA |
| Rated Insulation Voltage (Ui) | 500 V |
| Rated Impulse Withstand Voltage (Uimp) | 6 kV |
| Minimum Operating Voltage | 12 V AC/DC |
| Overvoltage Category | IV |
| Pollution Degree | 3 |
| Protection Rating | IP20 (IP40 when installed in an enclosure) |
| Terminal Capacity | 0.75–35 mm² rigid, 0.75–25 mm² flexible |
| 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. 0.248 kg |
| EAN | 4016779079761 |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077, CSA 22.2 No.235 |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
It is designed to protect very low-current industrial circuits, particularly inductive loads such as transformers, relays, solenoids and specialised control equipment.
The ABB S301P-K0.2NA has a rated current of 0.2 A.
A K characteristic miniature circuit breaker has a higher instantaneous magnetic trip setting (typically 8–12 × rated current), making it ideal for circuits with high inrush currents from inductive equipment.
The device provides a 25 kA rated short-circuit breaking capacity and a 12.5 kA rated service breaking capacity.
A 1P+N device protects the live conductor whilst simultaneously switching the neutral conductor, providing improved isolation during servicing and maintenance.
ABB System pro M compact miniature circuit breakers are trusted globally by machine builders, industrial panel manufacturers and electrical engineers for delivering exceptional reliability, high fault interruption performance and compliance with international industrial standards.
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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...