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ABB S201-D40NA MCB – 1P+N – D Curve – 40A – 6kA
ABB S201-D40NA miniature circuit breaker featuring a 40 A rated current, D characteristic tripping curve, 1P+N configuration and 6 kA breaking capacity for reliable overload and short circuit protection.
£66.64
Why Choose the ABB S201-D40NA Miniature Circuit Breaker?
The ABB S201-D40NA is a compact and reliable miniature circuit breaker (MCB) designed to provide dependable overload and short circuit protection for electrical installations. As part of the proven ABB System pro M Compact S200 series, it is engineered for residential, commercial and industrial applications where high quality circuit protection is required.
This miniature circuit breaker uses both a delayed thermal tripping mechanism for overload protection and an electromechanical tripping mechanism for short circuit protection. Its D curve tripping characteristic makes it suitable for circuits with high inrush currents, helping protect equipment while reducing nuisance tripping in demanding applications.
With a 40 A rated current, 1P+N configuration and 6 kA breaking capacity, the S201-D40NA offers robust protection in a compact DIN rail mounted format. It is suitable for use in distribution boards, control panels and machinery circuits where reliable ABB circuit protection is essential.
Key Advantages
- Reliable ABB System pro M Compact S200 miniature circuit breaker.
- 40 A rated current for higher load circuit protection.
- D curve tripping characteristic for circuits with high inrush currents.
- 1P+N configuration for phase and neutral protection.
- 6 kA breaking capacity for dependable fault protection.
- Compact DIN rail mounting for distribution boards and control panels.
Key Features
- ABB S201-D40NA miniature circuit breaker.
- System pro M Compact S200 series.
- 40 A rated current.
- D characteristic tripping curve.
- 1P+N pole configuration.
- 6 kA breaking capacity.
- Thermal and magnetic tripping mechanisms.
- DIN rail mounted design with screw terminals.
Reliable Protection for High Inrush Electrical Loads
The ABB S201-D40NA is designed to protect circuits where equipment may create higher starting currents during switching or motor start-up. The D curve characteristic allows the breaker to tolerate short duration inrush currents while still providing fast disconnection under genuine fault conditions.
Its compact 1P+N format is well suited to modern electrical distribution systems, offering phase and neutral switching in a DIN rail mounted device. This makes it a practical solution for panel builders, contractors and maintenance engineers seeking dependable ABB circuit protection.
Typical Applications
- Electrical distribution boards.
- Industrial control panels.
- Circuits with high inrush currents.
- Motor and transformer protection circuits.
- Commercial building services.
- Residential and light industrial installations.
Technical Specifications
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| Current | 40 A | |
|---|---|---|
| Phase | Single Phase | |
| Poles | 1-pole + N | |
| Device Type | MCB | |
| Trip Curve | D curve | |
| Breaking Capacity | 6 kA | |
| Manufacturer | ABB | |
| Series | System pro M Compact S200 | |
| Model | S201-D40NA | |
| Product ID | 2CDS251103R0401 | |
| Product type | Miniature Circuit Breaker (MCB) | |
| Rated current | 40 A | |
| Tripping characteristic | D | |
| Number of poles | 1P+N | |
| Rated AC voltage | 230 / 400 V AC | |
| Rated DC voltage | 12 V DC | |
| Breaking capacity | 6 kA | |
| Frequency | 50 / 60 Hz | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Terminal type | Screw terminals | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL1077 | |
| Dimensions (H × W × D) | approx. 88 × 35 × 69 mm |
Frequently Asked Questions
What is the ABB S201-D40NA used for?
The ABB S201-D40NA is used to protect electrical circuits against overloads and short circuits, particularly in applications where high inrush currents may occur.
What is the rated current of this circuit breaker?
The S201-D40NA has a 40 A rated current.
What does the D curve characteristic mean?
The D curve characteristic is designed for circuits with higher inrush currents, such as motors, transformers and certain industrial loads.
What is the pole configuration?
This model has a 1P+N configuration, providing phase and neutral switching in a compact modular device.
How is the S201-D40NA installed?
The circuit breaker is designed for DIN rail mounting inside electrical distribution boards, consumer units or control panels.
Trusted by Electrical Professionals Worldwide
ABB System pro M Compact miniature circuit breakers are widely trusted by electricians, panel builders and industrial engineers for reliable circuit protection, compact installation and long term performance across demanding electrical systems.
