ABB S203-Z16NA miniature circuit breaker, a 3-pole plus neutral 16 A Z curve MCB from the System pro M compact S200 range with 6 kA breaking capacity for residential, commercial and industrial circuit protection.
£182.54
The ABB S203-Z16NA is a reliable 3-pole plus neutral miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short circuits. Part of the ABB System pro M compact S200 range, it provides dependable modular protection for residential, commercial and industrial electrical installations.
With a Z tripping characteristic, the S203-Z16NA is designed for circuits requiring fast magnetic tripping at low fault current levels. This makes it suitable for selected sensitive loads, control circuits and specialist electrical systems where rapid disconnection is important.
Rated at 16 A with a 3P+N configuration and 6 kA short-circuit breaking capacity, the ABB S203-Z16NA provides effective protection for three-phase circuits with neutral switching. Its compact DIN rail mounting format enables straightforward installation in distribution boards, switchboards and control panels.
Miniature circuit breakers such as the ABB S203-Z16NA automatically disconnect electrical circuits when excessive current is detected. The delayed thermal tripping mechanism provides overload protection, while the electromechanical tripping mechanism responds quickly to short-circuit faults.
The Z curve characteristic provides rapid magnetic tripping at lower fault current levels. This makes the S203-Z16NA suitable for selected sensitive circuits, control systems and specialist equipment where fast disconnection helps protect connected devices and wiring.
| Current | 16 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | S200 |
| Model | S203-Z16NA |
| Product ID | 2CDS253103R0468 |
| EAN | 4016779533027 |
| Product type | Miniature circuit breaker |
| Number of poles | 3P+N |
| Protected poles | 3 |
| Rated current | 16 A |
| Tripping characteristic | Z curve |
| Rated short-circuit capacity | 6 kA |
| Rated operational voltage | 400 V AC |
| Maximum operational voltage | 440 V AC |
| Rated insulation voltage | 440 V |
| Rated impulse withstand voltage | 4 kV |
| Frequency | 50 / 60 Hz |
| Protection rating | IP20 |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 |
| Mounting type | DIN rail |
| Terminal type | Screw terminals |
| Dimensions (H × W × D) | approx. 88 × 70 × 69 mm |
| Weight | approx. 0.52 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The ABB S203-Z16NA is used to protect three-phase and neutral electrical circuits against overloads and short circuits in residential, commercial and industrial installations.
The S203-Z16NA has a rated current of 16 A.
This miniature circuit breaker has a 3P+N configuration, providing three protected poles plus neutral.
The Z curve tripping characteristic provides fast tripping at lower fault current levels, making it suitable for selected sensitive circuits and control applications.
It is typically installed on a DIN rail inside distribution boards, control panels, switchboards or electrical enclosures.
ABB System pro M compact S200 miniature circuit breakers are trusted by electrical contractors, panel builders and engineers for reliable modular circuit protection across residential, commercial and industrial installations.
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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...