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ABB S201M-K4NA MCB – 1P+N – K Curve – 4A – 10kA
ABB S201M-K4NA miniature circuit breaker, a 4 A K curve 1P+N MCB from the System pro M compact S200M range for overload and short-circuit protection.
£40.60
Why Choose the ABB S201M-K4NA Miniature Circuit Breaker?
The ABB S201M-K4NA is a high-performance miniature circuit breaker (MCB) designed to provide dependable overload and short-circuit protection for low-voltage electrical installations. Part of the proven ABB System pro M compact S200M series, it is engineered for industrial, commercial and OEM applications where circuits experience high inrush currents from motors, transformers and inductive loads.
Featuring a K tripping characteristic, the S201M-K4NA is specifically designed to tolerate higher starting currents while maintaining effective protection against overloads and short circuits. Its current-limiting construction helps reduce fault energy, improving the protection of connected equipment and wiring.
With a rated current of 4 A and a compact 1P+N configuration, this circuit breaker is ideal for DIN rail mounted control panels, machinery, motor circuits and automation systems requiring reliable ABB circuit protection.
Key Advantages
- Reliable miniature circuit breaker for overload and short-circuit protection.
- 4 A rated current for low-current industrial circuits.
- K tripping characteristic for motors, transformers and inductive loads.
- 1P+N configuration for compact installations.
- Current-limiting design helps minimise fault energy.
- DIN rail mounting for straightforward installation.
Key Features
- ABB System pro M compact S200M series.
- Model: S201M-K4NA.
- Product ID: 2CDS271103R0337.
- 4 A rated current.
- K tripping characteristic.
- 1P+N pole configuration.
- Thermal overload protection.
- Electromagnetic short-circuit protection.
- DIN rail mounting.
Reliable Protection for Motor and Inductive Circuits
The ABB S201M-K4NA automatically disconnects electrical circuits during overload and short-circuit conditions, helping protect motors, transformers, wiring and control equipment from excessive current and fault damage.
Its K curve characteristic makes it particularly suitable for circuits with higher inrush currents, reducing nuisance tripping while maintaining dependable protection in demanding industrial environments.
Typical Applications
- Motor control circuits.
- Industrial machinery.
- Automation systems.
- Transformer protection.
- Control panels.
- OEM electrical equipment.
Technical Specifications
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| Certification | UL 1077 | |
|---|---|---|
| Current | 4 A | |
| Phase | Single Phase | |
| Poles | 1-pole + N | |
| Device Type | MCB | |
| Trip Curve | K curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | System pro M compact S200M | |
| Model | S201M-K4NA | |
| Product ID | 2CDS271103R0337 | |
| Product type | Miniature circuit breaker | |
| Rated current | 4 A | |
| Tripping characteristic | K | |
| Number of poles | 1P+N | |
| Rated operational voltage | 230 V AC | |
| Maximum operating voltage | 480Y / 277 V AC | |
| Rated DC voltage | 60 V DC | |
| Frequency | 50 / 60 Hz | |
| Breaking capacity | 10 kA at 230 / 400 V AC | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Rated insulation voltage (Ui) | 440 V | |
| Rated impulse withstand voltage (Uimp) | 4 kV | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 | |
| EAN | 4016779602983 | |
| Dimensions (W × H × D) | approx. 35 × 88 × 69 mm | |
| Weight | approx. 0.217 kg | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S201M-K4NA used for?
The ABB S201M-K4NA protects electrical circuits against overloads and short circuits, particularly where motors, transformers and inductive loads are used.
What current rating does this MCB have?
This miniature circuit breaker has a rated current of 4 A.
What does the K tripping characteristic mean?
A K characteristic MCB is designed for circuits with higher inrush currents, making it ideal for motor and transformer applications.
How is the breaker installed?
The S201M-K4NA is designed for standard DIN rail mounting inside distribution boards and control panels.
Which standards does it comply with?
It complies with IEC/EN 60898-1, IEC/EN 60947-2 and UL 1077.
Trusted by Electrical Professionals Worldwide
ABB System pro M compact miniature circuit breakers are trusted by electricians, panel builders and automation engineers for dependable circuit protection in demanding low-voltage installations.
