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2CDS383103R0105 ABB S303P-B10NA Miniature Circuit Breaker – 3+NP – B – 10 A
ABB S303P-B10NA miniature circuit breaker with a 10 A rating, Type B tripping characteristic, 3P+N configuration and 25 kA breaking capacity for industrial electrical protection.
£71.51
Why Choose the ABB 2CDS383103R0105 S303P-B10NA Miniature Circuit Breaker?
The ABB 2CDS383103R0105, also known as the S303P-B10NA, is a premium miniature circuit breaker (MCB) designed to provide dependable protection against overloads and short circuits in industrial and commercial electrical installations. Part of the trusted ABB S300P System pro M compact series, it delivers outstanding reliability, compact installation and high fault-breaking performance for demanding applications.
Featuring a 3P+N configuration, the S303P-B10NA protects all three phase conductors while providing a switched neutral pole. Its Type B tripping characteristic makes it particularly suitable for resistive loads and circuits with low inrush currents, including lighting systems, distribution circuits and general-purpose installations.
With a rated current of 10 A, an operating voltage of up to 415 V AC and a high 25 kA breaking capacity, this ABB miniature circuit breaker provides exceptional protection for switchboards, control panels and industrial distribution systems. Its DIN rail mounting and compact four-module width simplify installation and maintenance.
Key Advantages
- Industrial-grade miniature circuit breaker for reliable circuit protection.
- 10 A rated current with Type B tripping characteristic.
- 3P+N configuration for three-phase systems with switched neutral.
- 25 kA breaking capacity for demanding industrial applications.
- Compact DIN rail design saves valuable panel space.
- Protects electrical systems against overloads and short circuits.
Key Features
- ABB S300P System pro M compact series.
- 10 A rated operational current.
- Type B tripping characteristic.
- 3 protected poles plus switched neutral.
- 25 kA short-circuit breaking capacity.
- Suitable for AC and DC applications within specified ratings.
- Bidirectional supply capability.
- DIN rail mounting for distribution boards and control panels.
Reliable Circuit Protection for Industrial Applications
The ABB S303P-B10NA automatically disconnects electrical circuits whenever overload or short-circuit conditions occur, helping prevent damage to cables, equipment and connected electrical systems while improving operational safety.
As part of ABB's proven S300P range, this miniature circuit breaker offers dependable performance, high breaking capacity and long service life, making it an excellent choice for industrial machinery, commercial buildings and electrical distribution systems.
Typical Applications
- Industrial distribution boards.
- Commercial electrical installations.
- Lighting distribution circuits.
- Machine control panels.
- OEM equipment.
- General-purpose three-phase power distribution.
Technical Specifications
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| Current | 10 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole + N | |
| Device Type | MCB | |
| Trip Curve | B curve | |
| Breaking Capacity | 25 kA | |
| Manufacturer | ABB | |
| Series | S300P System pro M compact | |
| Model | S303P-B10NA | |
| Product ID | 2CDS383103R0105 | |
| Product type | Miniature circuit breaker | |
| Rated current | 10 A | |
| Tripping characteristic | Type B | |
| Number of poles | 3P+N | |
| Number of protected poles | 3 | |
| Rated voltage | Up to 415 V AC | |
| Frequency | 50 / 60 Hz | |
| Breaking capacity | 25 kA | |
| Rated insulation voltage | 500 V | |
| Impulse withstand voltage | 6 kV | |
| Protection rating | IP20 | |
| Mounting type | DIN rail mounting | |
| Module width | 4 modules | |
| Dimensions (H × W × D) | approx. 88 × 70 × 69 mm | |
| Weight | approx. 0.496 kg | |
| EAN | 4016779077330 | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB 2CDS383103R0105 used for?
It protects three-phase electrical circuits against overloads and short circuits in industrial and commercial installations.
What is the current rating of this circuit breaker?
The ABB S303P-B10NA has a rated current of 10 A.
What tripping characteristic does this MCB use?
This model uses a Type B tripping characteristic, making it suitable for circuits with relatively low inrush currents.
What is the breaking capacity?
The miniature circuit breaker provides a 25 kA short-circuit breaking capacity.
How is the S303P-B10NA installed?
It is designed for quick installation onto a standard DIN rail within electrical distribution boards and industrial control panels.
Trusted by Electrical Professionals Worldwide
ABB S300P miniature circuit breakers are trusted by panel builders, electrical contractors and industrial engineers for delivering dependable circuit protection, long-term reliability and compliance with international electrical standards.
