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2CDS383001R0117 ABB S303P-K0.3 Miniature Circuit Breaker – 3P – K – 0.3 A
ABB S303P-K0.3 3 pole 0.3 A miniature circuit breaker with K tripping characteristic and 25 kA breaking capacity for industrial overload and short-circuit protection.
£112.15
Why Choose the ABB S303P-K0.3 Miniature Circuit Breaker?
The ABB S303P-K0.3 (Product ID: 2CDS383001R0117) is a premium 3-pole miniature circuit breaker (MCB) engineered to provide reliable overload and short-circuit protection for sensitive industrial electrical circuits. As part of the trusted ABB System pro M compact S300P series, it is manufactured to international IEC and UL standards, making it ideal for industrial control panels, automation systems and OEM machinery.
Designed for dependable long-term performance, the S303P-K0.3 combines ABB's advanced thermal and magnetic protection technology with a compact DIN rail mounted design. Its K tripping characteristic is specifically intended for circuits with higher inrush currents, allowing normal starting currents for inductive loads while delivering rapid disconnection under fault conditions.
Featuring a 0.3 A rated current, 3-pole configuration and a 25 kA rated short-circuit breaking capacity, the S303P-K0.3 provides dependable protection for low-current industrial applications where maximum reliability and equipment protection are essential.
Key Advantages
- Reliable overload and short-circuit protection.
- 0.3 A rated current for sensitive low-current circuits.
- 3-pole configuration for complete three-phase protection.
- K tripping characteristic for inductive loads with higher inrush currents.
- 25 kA breaking capacity for demanding industrial installations.
- Compact DIN rail mounted design for straightforward installation.
Key Features
- ABB System pro M compact S300P series.
- 0.3 A rated current.
- 3-pole construction.
- K tripping characteristic.
- 25 kA rated short-circuit breaking capacity.
- Suitable for AC and selected DC applications.
- Thermal and magnetic trip mechanisms.
- DIN rail mounted modular construction.
- Compatible with ABB auxiliary accessories.
Reliable Protection for Industrial Electrical Systems
Miniature circuit breakers automatically disconnect electrical circuits whenever overload or short-circuit conditions occur, protecting wiring, control equipment and connected devices from damage. The ABB S300P range has been developed specifically for demanding industrial environments where dependable protection and long service life are essential.
The K tripping characteristic is particularly suitable for circuits supplying inductive loads with relatively high starting currents, including transformers, relays, solenoids, contactors and specialised control equipment.
Typical Applications
- Industrial control panels.
- Automation systems.
- Transformer protection.
- Instrumentation circuits.
- OEM machinery.
- Three-phase control circuits.
- Industrial process equipment.
- Electrical distribution systems.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 0.3 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCB | |
| Trip Curve | K curve | |
| Breaking Capacity | 25 kA | |
| Manufacturer | ABB | |
| Series | System pro M compact S300P | |
| Model | S303P-K0.3 | |
| Product ID | 2CDS383001R0117 | |
| EAN | 4016779078122 | |
| Product type | Miniature Circuit Breaker (MCB) | |
| Rated current | 0.3 A | |
| Number of poles | 3 | |
| Protected poles | 3 | |
| Trip characteristic | K | |
| Rated operational voltage | Up to 415 V AC | |
| Rated DC voltage | Up to 125 V DC | |
| Frequency | 50 / 60 Hz | |
| Rated short-circuit breaking capacity (Icn) | 25 kA | |
| Rated ultimate breaking capacity (Icu) | 25 kA | |
| Rated insulation voltage (Ui) | 500 V | |
| Rated impulse withstand voltage (Uimp) | 6 kV | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Dimensions (H × W × D) | 88 × 52.5 × 69 mm | |
| Weight | 372 g | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S303P-K0.3 used for?
The S303P-K0.3 protects sensitive three-phase industrial electrical circuits against overloads and short circuits.
What is the rated current of this circuit breaker?
The ABB S303P-K0.3 has a 0.3 A rated current.
What does the K tripping characteristic mean?
The K characteristic is designed for circuits with higher inrush currents, making it ideal for transformers, relays, solenoids and other inductive industrial loads.
What is the breaking capacity of the S303P-K0.3?
The breaker provides a rated short-circuit breaking capacity of 25 kA, making it suitable for demanding industrial electrical installations.
How is the breaker installed?
The S303P-K0.3 is designed for installation onto a standard DIN rail inside electrical distribution boards and industrial control panels.
Trusted by Electrical Professionals Worldwide
ABB System pro M compact miniature circuit breakers are trusted by electrical engineers, machine builders and industrial maintenance professionals worldwide for dependable circuit protection, exceptional reliability and long-term operational performance.
