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ABB S201-D50NA MCB – S200P – 1+NP – D – 50A
ABB S201-D50NA 1P+N miniature circuit breaker with 50 A rated current and D characteristic tripping curve for residential, commercial and industrial electrical protection.
£76.88
Why Choose the ABB S201-D50NA Miniature Circuit Breaker?
The ABB S201-D50NA is a compact and dependable 1P+N miniature circuit breaker (MCB) designed to provide reliable overload and short circuit protection for residential, commercial and industrial electrical installations. As part of the trusted ABB System pro M Compact S200 series, it combines high current limiting performance with a compact DIN rail mounted design for modern electrical distribution systems.
The S201-D50NA incorporates ABB's proven delayed thermal tripping mechanism for overload protection together with an electromechanical tripping mechanism for short circuit protection. Its 1P+N configuration switches both the phase and neutral conductors, providing enhanced circuit isolation whilst remaining fully compatible with ABB System pro M Compact accessories.
Featuring a 50 A rated current, D characteristic tripping curve and 1P+N configuration, this miniature circuit breaker is particularly suited to transformers, motors, power supplies and other circuits with high inrush currents where dependable protection is essential.
Key Advantages
- Compact 1P+N miniature circuit breaker.
- 50 A rated current for dependable circuit protection.
- D characteristic tripping curve suitable for high inrush current applications.
- Current limiting design helps minimise fault energy.
- Compatible with ABB System pro M Compact accessories.
- Suitable for residential, commercial and industrial electrical installations.
Key Features
- ABB System pro M Compact S200 series.
- 50 A rated current.
- 1P+N configuration.
- D characteristic thermal magnetic trip curve.
- Thermal overload and electromechanical short circuit protection.
- Rated operational voltage up to 230 / 400 V AC.
- 6 kA breaking capacity to IEC/EN 60898-1.
- DIN rail mounting with screw terminals.
Reliable Protection for High Inrush Applications
The ABB S201-D50NA automatically disconnects electrical circuits during overload and short circuit conditions, helping protect wiring, connected equipment and downstream devices from damage. Its current limiting characteristics contribute to improved installation safety and dependable long term operation.
The D characteristic tripping curve is intended for circuits with high inrush currents, making this miniature circuit breaker an excellent choice for motors, transformers, power supplies and industrial machinery where heavy starting currents are expected.
Typical Applications
- Motor circuits.
- Transformer protection.
- Industrial control panels.
- Power supplies.
- Commercial electrical installations.
- Industrial distribution boards.
Technical Specifications
Tick the specs you need, then view products that match.
| Poles | 1-pole + N | |
|---|---|---|
| Current | 50 A | |
| Phase | Single Phase | |
| Device Type | MCB | |
| Trip Curve | D curve | |
| Breaking Capacity | 6 kA | |
| Manufacturer | ABB | |
| Series | System pro M Compact S200 | |
| Model | S201-D50NA | |
| Manufacturer Part Number | 2CDS251103R0501 | |
| Product type | Miniature circuit breaker | |
| Rated current | 50 A | |
| Configuration | 1P+N | |
| Tripping characteristic | D | |
| Rated operational voltage | 230 / 400 V AC | |
| Frequency | 50 / 60 Hz | |
| Breaking capacity | 6 kA | |
| Rated insulation voltage | 440 V | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Dimensions (H × W × D) | 88 × 35 × 69 mm |
Frequently Asked Questions
What is the ABB S201-D50NA used for?
It provides overload and short circuit protection for residential, commercial and industrial electrical circuits, particularly those with high inrush currents.
What does the D tripping characteristic mean?
The D characteristic is intended for circuits with high starting currents, making it suitable for motors, transformers and other inductive loads.
What is the rated current?
The ABB S201-D50NA has a 50 A rated current.
What does the 1P+N configuration mean?
The device protects the phase conductor whilst switching both the phase and neutral conductors for improved circuit isolation.
Can it be mounted on a DIN rail?
Yes. The S201-D50NA is designed for standard DIN rail installation and is compatible with ABB System pro M Compact accessories.
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, reliable performance and long service life.
