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ABB S203-C4NA MCB – S200 – 3P+N – C – 4A
ABB S203-C4NA miniature circuit breaker from the System pro M compact S200 series, featuring a 4A C curve rating and 3P+N configuration for reliable overload and short-circuit protection.
£73.56
Why Choose the ABB S203-C4NA Miniature Circuit Breaker?
The ABB S203-C4NA is a high-quality miniature circuit breaker (MCB) designed to provide reliable protection against overloads and short circuits in electrical distribution systems. As part of the trusted ABB System pro M compact S200 series, it is engineered for residential, commercial and industrial installations requiring dependable circuit protection.
This MCB features a C curve tripping characteristic, making it suitable for circuits with moderate inrush currents such as lighting groups, small motors, control panels and general power distribution. Its current-limiting design helps reduce the effects of fault currents, improving safety and protecting downstream equipment.
With a rated current of 4A and a 3P+N configuration, the S203-C4NA is ideal for three-phase circuits with neutral switching. Its DIN rail mounting format enables quick installation in consumer units, distribution boards and industrial control panels.
Key Advantages
- Reliable miniature circuit breaker for overload and short-circuit protection.
- 4A rated current for low-current circuit protection.
- C curve characteristic suitable for moderate inrush loads.
- 3P+N configuration for three-phase circuits with neutral switching.
- Current-limiting performance helps reduce fault energy.
- Compact DIN rail design for distribution boards and control panels.
Key Features
- ABB System pro M compact S200 series.
- 4A rated operational current.
- C curve tripping characteristic.
- 3 protected poles plus neutral.
- 6kA breaking capacity according to EN 60898.
- Thermal-magnetic trip mechanism.
- DIN rail mounting for modular electrical panels.
- Suitable for residential, commercial and industrial installations.
Reliable Circuit Protection for Electrical Installations
Miniature circuit breakers such as the ABB S203-C4NA automatically disconnect electrical circuits when overloads or short circuits occur. This helps protect cables, connected equipment and electrical installations from damage caused by excessive current.
The S200 series uses a thermal tripping mechanism for overload protection and an electromagnetic tripping mechanism for short-circuit protection. This combination delivers dependable performance in modern distribution boards, machinery panels and commercial electrical systems.
Typical Applications
- Three-phase electrical distribution boards.
- Commercial and industrial control panels.
- Lighting and small power circuits.
- Building services installations.
- Machinery and automation panels.
- Low-current circuit protection applications.
Technical Specifications
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| Phase | Three Phase | |
|---|---|---|
| Current | 4 A | |
| Poles | 3-pole + N | |
| Device Type | MCB | |
| Trip Curve | C curve | |
| Breaking Capacity | 6 kA | |
| Manufacturer | ABB | |
| Series | System pro M compact S200 | |
| Model | S203-C4NA | |
| Product ID | 2CDS253103R0044 | |
| Product type | Miniature circuit breaker | |
| Rated current | 4A | |
| Tripping characteristic | C curve | |
| Number of poles | 3P+N | |
| Protected poles | 3 | |
| Rated voltage | 400V AC | |
| Frequency | 50Hz | |
| Breaking capacity | 6kA | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2 | |
| Mounting type | DIN rail mounting | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S203-C4NA used for?
The ABB S203-C4NA is used to protect electrical circuits against overloads and short circuits in three-phase installations with neutral switching.
What current rating does this MCB provide?
This miniature circuit breaker has a rated current of 4A.
What does C curve mean on this circuit breaker?
A C curve MCB is designed for circuits with moderate inrush currents, such as lighting, small motors and general power distribution applications.
How many poles does the S203-C4NA have?
The S203-C4NA has a 3P+N configuration, with three protected poles and a switched neutral.
Where is this MCB typically installed?
It is typically installed in DIN rail distribution boards, consumer units, control panels and industrial electrical enclosures.
Trusted by Electrical Professionals Worldwide
ABB System pro M compact circuit protection devices are widely used by electricians, panel builders and electrical engineers for reliable protection, compact installation and dependable performance in modern electrical systems.
