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ABB S201-K4NA MCB – 1P+N – K Curve – 4A – 6kA
ABB S201-K4NA 1P+N miniature circuit breaker with 4 A rating, K tripping characteristic and 6 kA breaking capacity for dependable low voltage circuit protection.
£46.97
Why Choose the ABB S201-K4NA Miniature Circuit Breaker?
The ABB S201-K4NA (Part Number: 2CDS251103R0337) is a premium 1P+N miniature circuit breaker (MCB) from the trusted ABB System pro M Compact S200 range. Designed to provide dependable protection against overloads and short circuits, it is ideal for industrial control panels, automation systems and electrical installations where circuits may experience moderate inrush currents.
Featuring a 4 A rated current, K tripping characteristic and 6 kA breaking capacity, the S201-K4NA is particularly suited to protecting control transformers, contactors, relays, solenoids and small motors. Its thermal overload and electromagnetic short-circuit trip mechanisms provide reliable protection whilst reducing nuisance tripping during normal equipment start-up.
The compact modular design enables straightforward DIN rail installation inside distribution boards, control panels and electrical enclosures. Manufactured to ABB's renowned quality standards, the S201-K4NA offers long service life, dependable performance and compatibility with the ABB System pro M Compact accessory range.
Key Advantages
- Premium 1P+N miniature circuit breaker from ABB.
- 4 A rated current with K curve tripping characteristic.
- 6 kA short-circuit breaking capacity.
- Designed for circuits with moderate inrush currents.
- Provides dependable overload and short-circuit protection.
- Compact DIN rail mounted design for fast installation.
Key Features
- ABB System pro M Compact S200 series.
- Model: S201-K4NA.
- Product ID: 2CDS251103R0337.
- 4 A rated current.
- K tripping characteristic.
- 1P+N configuration.
- 6 kA rated breaking capacity.
- Thermal overload and electromagnetic short-circuit protection.
- Current-limiting miniature circuit breaker design.
- DIN rail mounting.
Reliable Protection for Control and Automation Circuits
Miniature circuit breakers automatically disconnect electrical circuits when overload or short-circuit conditions occur, helping protect wiring, connected equipment and electrical installations from excessive current.
The K curve characteristic is intended for applications with moderate inrush currents, making the ABB S201-K4NA a strong choice for control transformers, relays, contactors, automation equipment and inductive loads commonly found in industrial control systems.
Typical Applications
- Industrial control panels.
- Automation systems.
- Control transformers.
- Contactors and relay circuits.
- OEM machinery.
- Commercial and industrial electrical installations.
Technical Specifications
Tick the specs you need, then view products that match.
| Certification | UL 1077 | |
|---|---|---|
| Current | 4 A | |
| Phase | Single Phase | |
| Poles | 1-pole + N | |
| Device Type | MCB | |
| Trip Curve | K curve | |
| Breaking Capacity | 6 kA | |
| Manufacturer | ABB | |
| Series | System pro M Compact S200 | |
| Model | S201-K4NA | |
| Product ID | 2CDS251103R0337 | |
| EAN | 4016779531870 | |
| Product type | Miniature Circuit Breaker (MCB) | |
| Rated current | 4 A | |
| Tripping characteristic | K | |
| Number of poles | 1P+N | |
| Rated operational voltage | 230 / 400 V AC | |
| Rated insulation voltage | 440 V | |
| Rated impulse withstand voltage | 4 kV | |
| 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 | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL1077 | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S201-K4NA used for?
The ABB S201-K4NA protects low voltage electrical circuits against overloads and short circuits, particularly circuits supplying inductive loads with moderate starting currents.
What is the rated current?
The S201-K4NA has a 4 A rated current.
What does the K tripping characteristic mean?
A K curve miniature circuit breaker is designed for circuits with moderate inrush currents, making it suitable for control transformers, contactors, relays and small motors.
How is this circuit breaker installed?
The device is designed for standard DIN rail mounting inside distribution boards, electrical enclosures and industrial control panels.
Which standards does the S201-K4NA comply with?
The circuit breaker complies with IEC/EN 60898-1, IEC/EN 60947-2 and UL1077.
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.
