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ABB S201-B20NA MCB – 1P+N – B Curve – 20A – 6kA
ABB S201-B20NA 1P+N miniature circuit breaker with 20 A rating, B tripping characteristic and 6 kA breaking capacity for reliable low voltage circuit protection.
£45.41
Why Choose the ABB S201-B20NA Miniature Circuit Breaker?
The ABB S201-B20NA (Part Number: 2CDS251103R0205) is a premium 1P+N miniature circuit breaker (MCB) from the trusted ABB System pro M Compact S200 range. Designed to provide reliable protection against overloads and short circuits, it is ideal for residential, commercial and industrial low voltage electrical installations.
With a 20 A rated current, B tripping characteristic and 6 kA breaking capacity, the S201-B20NA delivers dependable protection for lighting, socket circuits and general purpose electrical distribution. Its thermal and magnetic trip mechanisms provide fast, reliable fault protection whilst maintaining stable operation during normal service.
The compact modular design allows straightforward DIN rail installation inside consumer units, distribution boards and control panels. Built to ABB's high manufacturing standards, the S201-B20NA offers long service life, excellent reliability and compatibility with the full range of ABB System pro M Compact accessories.
Key Advantages
- High quality 1P+N miniature circuit breaker from ABB.
- 20 A rated current with B tripping characteristic.
- 6 kA breaking capacity for dependable fault protection.
- Protects against overloads and short circuits.
- Suitable for residential, commercial and industrial installations.
- Compact DIN rail mounted design for fast installation.
Key Features
- ABB System pro M Compact S200 series.
- Model: S201-B20NA.
- Product ID: 2CDS251103R0205.
- 20 A rated current.
- B tripping characteristic.
- 1P+N configuration.
- 6 kA short-circuit breaking capacity.
- Thermal overload and magnetic short-circuit protection.
- DIN rail mounting.
- Compatible with ABB S200 accessories.
Reliable Circuit Protection for Everyday Electrical Installations
Miniature circuit breakers automatically disconnect electrical circuits when overload or short-circuit conditions occur, helping to protect wiring, connected equipment and electrical installations from damage.
The B characteristic is designed for general purpose electrical circuits with relatively low inrush currents, making the S201-B20NA an excellent choice for lighting circuits, socket outlets, domestic distribution boards and commercial electrical installations.
Typical Applications
- Residential consumer units.
- Commercial distribution boards.
- Industrial electrical panels.
- Lighting circuits.
- Socket outlet circuits.
- General low voltage circuit protection.
Technical Specifications
Tick the specs you need, then view products that match.
| Certification | UL 1077 | |
|---|---|---|
| Current | 20 A | |
| Phase | Single Phase | |
| Poles | 1-pole + N | |
| Device Type | MCB | |
| Trip Curve | B curve | |
| Breaking Capacity | 6 kA | |
| Manufacturer | ABB | |
| Series | System pro M Compact S200 | |
| Model | S201-B20NA | |
| Product ID | 2CDS251103R0205 | |
| Product type | Miniature Circuit Breaker (MCB) | |
| Rated current | 20 A | |
| Tripping characteristic | B | |
| Number of poles | 1P+N | |
| Rated voltage | 230 / 400 V AC | |
| Rated frequency | 50 / 60 Hz | |
| Breaking capacity | 6 kA | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Dimensions (H × W × D) | approx. 88 × 35 × 69 mm | |
| Weight | approx. 0.20 kg | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL1077, CSA 22.2 No. 235 | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S201-B20NA used for?
The S201-B20NA protects electrical circuits against overloads and short circuits in residential, commercial and industrial installations.
What is the current rating?
This miniature circuit breaker has a 20 A rated current.
What does the B tripping characteristic mean?
A B curve MCB is designed for general electrical circuits such as lighting, socket outlets and resistive loads where relatively low inrush currents are expected.
How is the ABB S201-B20NA installed?
The device mounts directly onto a standard DIN rail inside consumer units, distribution boards and electrical control panels.
Which standards does this circuit breaker comply with?
The S201-B20NA complies with IEC/EN 60898-1, IEC/EN 60947-2, UL1077 and CSA 22.2 No. 235.
Trusted by Electrical Professionals Worldwide
ABB System pro M Compact miniature circuit breakers are trusted by electricians, panel builders and industrial engineers worldwide for dependable circuit protection, robust construction and long-term reliability.
