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.
