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ABB S201-D2NA MCB – 1P+N – D Curve – 2A – 6kA
ABB 2CDS251103R0021 S201-D2NA 1P+N 2 A D curve miniature circuit breaker from the System pro M Compact S200 range, providing overload and short-circuit protection for low current electrical and control circuits.
£61.53
Why Choose the ABB S201-D2NA Miniature Circuit Breaker?
The ABB 2CDS251103R0021, also known as ABB S201-D2NA, is a compact 1P+N miniature circuit breaker (MCB) from the trusted ABB System pro M Compact S200 series. Designed to provide reliable protection against overloads and short circuits, it is suitable for residential, commercial and industrial electrical installations requiring dependable low current circuit protection.
Featuring a D trip characteristic, the S201-D2NA is particularly suited to circuits with higher inrush currents, including small transformers, solenoids, power supplies, control circuits and inductive loads. Its current limiting design helps reduce fault energy, improving electrical safety and helping protect connected equipment during fault conditions.
With a 2 A rated current, 1P+N configuration and compact DIN rail mounted format, the ABB S201-D2NA provides reliable circuit protection for control panels, distribution boards and automation systems. The neutral switching arrangement helps simplify installation where phase and neutral disconnection is required.
Key Advantages
- Compact 1P+N miniature circuit breaker for low current circuit protection.
- 2 A rated current suitable for control and auxiliary circuits.
- D characteristic designed for circuits with higher inrush currents.
- Current limiting design helps reduce fault energy.
- Thermal and magnetic tripping for overload and short-circuit protection.
- DIN rail mounting enables quick installation in electrical panels.
Key Features
- ABB System pro M Compact S200 series.
- 2 A rated current.
- 1P+N configuration.
- D trip characteristic.
- Current limiting miniature circuit breaker design.
- Thermal overload and magnetic short-circuit protection.
- Suitable for residential, commercial and industrial applications.
- Compact DIN rail mounted construction.
Reliable Protection for Low Current Electrical Circuits
The ABB S201-D2NA protects electrical circuits by automatically disconnecting the supply when overload or short-circuit conditions occur. Its thermal tripping mechanism provides overload protection, while the magnetic trip responds rapidly to fault currents to help protect wiring, equipment and connected loads.
The D characteristic is designed for circuits with higher starting currents, helping reduce nuisance tripping while maintaining dependable fault protection. This makes the S201-D2NA well suited to control panels, small transformer circuits, solenoids and industrial automation equipment.
Typical Applications
- Industrial control panels.
- Small transformer protection.
- Solenoid and inductive load circuits.
- Automation and PLC systems.
- Electrical distribution boards.
- Residential, commercial and industrial installations.
Technical Specifications
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| Current | 2 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-D2NA | |
| Product ID | 2CDS251103R0021 | |
| Product type | Miniature circuit breaker (MCB) | |
| Rated current | 2 A | |
| Number of poles | 1P+N | |
| Protected poles | 1 | |
| Trip characteristic | D | |
| Rated operational voltage | 230 V AC | |
| Frequency | 50 / 60 Hz | |
| Rated short-circuit breaking capacity | 6 kA | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 | |
| Mounting type | DIN rail | |
| Terminal type | Screw terminals | |
| Application | Circuit protection for low current electrical and control circuits | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB 2CDS251103R0021 used for?
The ABB 2CDS251103R0021, also known as S201-D2NA, is used to protect low current electrical circuits against overloads and short circuits.
What is the rated current of the S201-D2NA?
The ABB S201-D2NA has a 2 A rated current.
What does the D trip characteristic mean?
The D characteristic is designed for circuits with high inrush currents, making it suitable for transformers, solenoids, power supplies and inductive loads.
What pole configuration does this breaker have?
This model has a 1P+N configuration, with one protected pole and a switched neutral.
How is the breaker installed?
The breaker is designed for installation onto standard 35 mm DIN rails inside distribution boards, control panels and electrical enclosures.
Trusted by Electrical Professionals Worldwide
ABB System pro M Compact miniature circuit breakers are trusted by electrical contractors, panel builders and industrial engineers for reliable circuit protection, consistent performance and long service life across demanding electrical installations.
