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2CDS383103R0165 ABB S303P-B16NA Miniature Circuit Breaker – 3+NP – B – 16 A
ABB S303P-B16NA miniature circuit breaker with a 16 A current rating, Type B tripping characteristic, 3P+N configuration and 25 kA breaking capacity for industrial electrical protection.
£71.51
Why Choose the ABB 2CDS383103R0165 S303P-B16NA Miniature Circuit Breaker?
The ABB 2CDS383103R0165, also known as the S303P-B16NA, is a premium miniature circuit breaker (MCB) designed to provide dependable protection against overloads and short circuits in industrial and commercial electrical installations. As part of the renowned ABB S300P System pro M compact series, it combines high fault-breaking performance with compact dimensions, making it ideal for demanding power distribution applications.
The breaker features a 3P+N configuration, protecting all three phase conductors while incorporating a switched neutral pole. Its Type B tripping characteristic is designed for circuits with low inrush currents, making it particularly suitable for lighting installations, resistive loads, control circuits and commercial distribution systems.
With a rated current of 16 A, a maximum operating voltage of 415 V AC and a 25 kA breaking capacity, the ABB S303P-B16NA delivers reliable protection for switchboards, distribution boards and industrial control panels. Its DIN rail mounting design enables quick installation while maximising available panel space.
Key Advantages
- Industrial-grade miniature circuit breaker for reliable circuit protection.
- 16 A rated current with Type B tripping characteristic.
- 3P+N configuration for three-phase systems with switched neutral.
- 25 kA short-circuit breaking capacity.
- Compact DIN rail mounting for fast installation.
- Reliable protection against overloads and short circuits.
Key Features
- ABB S300P System pro M compact series.
- 16 A rated operational current.
- Type B tripping characteristic.
- Three protected poles plus switched neutral.
- 25 kA rated breaking capacity.
- Suitable for AC/DC applications.
- Bidirectional supply capability.
- DIN rail mounting for industrial control panels and distribution boards.
Reliable Circuit Protection for Industrial Applications
The ABB S303P-B16NA automatically disconnects electrical circuits whenever overload or short-circuit conditions occur, helping protect cables, electrical equipment and connected systems while improving operational safety and minimising downtime.
Designed for industrial automation, commercial buildings and OEM equipment, the ABB S300P range provides dependable overload protection, excellent fault-breaking performance and long service life. Its Type B tripping characteristic is particularly suited to lighting circuits and resistive loads where rapid fault clearance is required.
Typical Applications
- Industrial distribution boards.
- Commercial electrical installations.
- Lighting distribution circuits.
- Building services electrical systems.
- Machine control panels.
- OEM machinery and automation equipment.
Technical Specifications
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| Current | 16 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-B16NA | |
| Product ID | 2CDS383103R0165 | |
| Product type | Miniature circuit breaker | |
| Rated current | 16 A | |
| Tripping characteristic | Type B | |
| Number of poles | 3P+N | |
| Number of protected poles | 3 | |
| Rated operating voltage | Up to 415 V AC | |
| Voltage type | AC/DC | |
| Frequency | 50 / 60 Hz | |
| Breaking capacity (Icn) | 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 | 4016779077248 | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB 2CDS383103R0165 used for?
It protects three-phase electrical circuits against overloads and short circuits in industrial and commercial installations.
What is the current rating of the S303P-B16NA?
The ABB S303P-B16NA has a rated operational current of 16 A.
What tripping characteristic does this circuit breaker use?
This model features a Type B tripping characteristic, making it ideal for lighting circuits and other loads with relatively low inrush currents.
What is the breaking capacity?
The S303P-B16NA provides a rated short-circuit breaking capacity of 25 kA.
How is the ABB S303P-B16NA installed?
It is designed for installation on a standard DIN rail inside electrical distribution boards, switchboards and industrial control panels.
Trusted by Electrical Professionals Worldwide
ABB S300P miniature circuit breakers are trusted by electrical engineers, panel builders and OEM manufacturers for delivering dependable overload and short-circuit protection in demanding industrial and commercial electrical installations.
