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ABB S203M-D1.6NA MCB – S200M – 3P+N – D – 1.6A
ABB S203M-D1.6NA miniature circuit breaker, a 1.6 A 3P+N D curve MCB from the System pro M Compact S200M series for industrial, commercial and specialist circuit protection.
£150.39
Why Choose the ABB S203M-D1.6NA Miniature Circuit Breaker?
The ABB S203M-D1.6NA is a compact and reliable miniature circuit breaker (MCB) from the ABB System pro M Compact S200M series, designed to provide dependable overload and short circuit protection for industrial, commercial and specialist electrical installations. Featuring a D characteristic trip curve, it is suited to circuits where higher starting currents may occur.
This MCB uses a delayed thermal tripping mechanism for overload protection and an electromechanical tripping mechanism for short circuit protection. The S200M range is current limiting, helping reduce fault energy and improve protection for downstream electrical equipment.
With a rated current of 1.6 A, a 3P+N configuration and a 10 kA breaking capacity, the S203M-D1.6NA is ideal for protecting low-current three-phase control circuits, automation equipment and specialist electrical loads requiring neutral switching.
Key Advantages
- High quality miniature circuit breaker for low-current circuit protection.
- 1.6 A rated current for sensitive and specialist electrical loads.
- D characteristic trip curve suitable for circuits with higher inrush currents.
- 3P+N configuration with three protected poles and switched neutral.
- 10 kA breaking capacity for reliable short circuit protection.
- DIN rail mounting for fast installation in control panels and distribution boards.
Key Features
- ABB System pro M Compact S200M series.
- 1.6 A rated current.
- D curve tripping characteristic.
- 3P+N pole configuration.
- 10 kA rated short circuit breaking capacity.
- Delayed thermal overload protection.
- Electromechanical short circuit protection.
- Compatible with ABB auxiliary and signalling accessories.
Reliable Protection for Specialist Low-Current Circuits
Miniature circuit breakers such as the ABB S203M-D1.6NA protect electrical circuits by disconnecting the supply when overloads or short circuits occur. The thermal trip responds to sustained overload conditions, while the electromechanical trip reacts quickly to short circuit faults.
The D curve characteristic is designed for circuits with higher inrush currents, making this device suitable for selected control circuits, inductive loads and specialist equipment where nuisance tripping must be reduced without compromising protection.
Typical Applications
- Industrial control panels.
- Automation and instrumentation circuits.
- Low-current three-phase equipment.
- Specialist machinery protection.
- Transformer and inductive load circuits.
- Electrical installations requiring neutral switching.
Technical Specifications
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| Phase | Three Phase | |
|---|---|---|
| Current | 1.6 A | |
| Poles | 3-pole + N | |
| Device Type | MCB | |
| Trip Curve | D curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | System pro M Compact S200M | |
| Model | S203M-D1.6NA | |
| Product ID | 2CDS273103R0971 | |
| EAN | 4016779663335 | |
| Product type | Miniature circuit breaker (MCB) | |
| Rated current | 1.6 A | |
| Number of protected poles | 3 | |
| Neutral pole | Switched neutral | |
| Pole configuration | 3P+N | |
| Trip characteristic | D | |
| Rated operational voltage | 400 V AC | |
| Rated insulation voltage | 440 V | |
| Rated impulse withstand voltage | 4 kV | |
| Frequency | 50 / 60 Hz | |
| Breaking capacity | 10 kA | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2 |
Frequently Asked Questions
What is the ABB S203M-D1.6NA used for?
It is used to provide overload and short circuit protection for low-current three-phase circuits where neutral switching is required.
What does the D trip characteristic mean?
The D curve is designed for circuits with higher inrush currents, such as selected motor, transformer and inductive load applications.
What is the current rating of this MCB?
The ABB S203M-D1.6NA has a rated current of 1.6 A.
What does 3P+N mean?
3P+N means the device has three protected phase poles together with a switched neutral pole.
How is the ABB S203M-D1.6NA installed?
It is designed for DIN rail mounting inside electrical distribution boards, control panels and industrial enclosures.
Trusted by Electrical Professionals Worldwide
ABB System pro M Compact miniature circuit breakers are widely used by panel builders, electrical contractors and machine manufacturers for dependable circuit protection across industrial, commercial and specialist installations.
