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2CDS271061R0337 ABB S201M-K4UC 4A Type K 10kA 1P AC/DC Miniature Circuit Breaker
ABB 2CDS271061R0337 S201M-K4UC is a single-pole 4 A Type K AC/DC miniature circuit breaker with 10 kA short-circuit breaking capacity, rated for 230 V AC and 220 V DC for industrial, DC and traction-related circuit protection applications.
£80.72
Why Choose the ABB S201M-K4UC Miniature Circuit Breaker?
The ABB S201M-K4UC, order code 2CDS271061R0337, is a single-pole 4 A miniature circuit breaker (MCB) from the ABB System pro M compact S200 M UC range. Designed for both AC and DC applications, it provides overload and short-circuit protection for industrial, control, DC and traction-related electrical installations.
Featuring a Type K tripping characteristic, the S201M-K4UC has a rated current of 4 A and a 10 kA short-circuit breaking capacity. It is suitable for operation at 230 V AC and 220 V DC, combining universal-current capability with the Type K characteristic required by many industrial circuits and loads with higher starting currents.
The S201M-K4UC provides an ultimate short-circuit breaking capacity of 20 kA at 110 V DC and 10 kA at 220 V DC. Its compact DIN rail format integrates with the ABB System pro M compact platform, allowing compatible accessories to be combined with the breaker for flexible panel and equipment protection.
Key Advantages
- Universal-current AC/DC miniature circuit breaker.
- 4 A rated current with Type K tripping characteristic.
- 10 kA short-circuit breaking capacity for robust fault protection.
- 20 kA ultimate breaking capacity at 110 V DC.
- Suitable for 230 V AC and 220 V DC applications.
- Compatible with the established ABB System pro M compact accessory platform.
Key Features
- ABB System pro M compact S200 M UC series.
- 1-pole miniature circuit breaker.
- 4 A rated current In.
- Type K tripping characteristic.
- 10 kA short-circuit breaking capacity.
- 20 kA ultimate short-circuit breaking capacity at 110 V DC.
- Suitable for 230 V AC and 220 V DC.
- UL 1077 interrupting rating of 10 kA at 250 V DC.
- UL 1077 interrupting rating of 6 kA at 277 V AC.
- Standard DIN rail mounting.
- Compatible with ABB System pro M compact accessories.
Type K Protection for AC and DC Circuits
The Type K tripping characteristic is designed for applications where equipment can produce elevated starting or inrush currents during normal operation. This makes the S201M-K4UC particularly relevant to industrial control and equipment circuits where nuisance operation needs to be avoided while maintaining effective overload and short-circuit protection.
ABB’s S200 M UC platform extends this protection to both alternating-current and direct-current systems. The S201M-K4UC is suitable for 230 V AC and 220 V DC applications and provides an ultimate short-circuit breaking capacity of 20 kA at 110 V DC and 10 kA at 220 V DC. The applicable polarity and ABB connection requirements must be observed when installing the breaker in a DC circuit.
Typical Applications
- Industrial control and automation systems.
- DC electrical distribution and auxiliary circuits.
- Railway and traction electrical systems.
- Machinery and equipment circuit protection.
- Control circuits with elevated starting currents.
- Battery-backed and DC auxiliary systems.
- AC and DC circuits requiring 4 A Type K protection.
Technical Specifications
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| Certification | UL 1077 | |
|---|---|---|
| Product group | DC / Traction MCB | |
| Series | System pro M compact S200 M UC | |
| Model / type | S201M-K4UC | |
| Order code | 2CDS271061R0337 | |
| Product type | Miniature circuit breaker (MCB) | |
| Number of poles | 1 | |
| Rated current In | 4 A | |
| Tripping characteristic | K | |
| Rated AC voltage | 230 V AC | |
| Rated DC voltage | 220 V DC | |
| Short-circuit breaking capacity | 10 kA | |
| Ultimate short-circuit breaking capacity at 110 V DC | 20 kA | |
| Ultimate short-circuit breaking capacity at 220 V DC | 10 kA | |
| UL 1077 interrupting rating at 250 V DC | 10 kA | |
| UL 1077 interrupting rating at 277 V AC | 6 kA | |
| Power loss | 1.4 W | |
| Power loss at rated operating conditions per pole | 1.39 W | |
| Protection rating | IP20 | |
| Electrical endurance | 20,000 cycles | |
| Operating temperature | -25 to +55 °C | |
| Mounting | DIN rail | |
| Standards | IEC/EN 60947-2, UL 1077, CSA 22.2 No. 235 | |
| EAN | 4013614430947 | |
| Weight | 0.125 kg | |
| Packaging quantity | 10 pieces |
Frequently Asked Questions
What is the ABB S201M-K4UC used for?
The ABB S201M-K4UC is a single-pole 4 A miniature circuit breaker designed to protect compatible AC and DC circuits against overloads and short circuits, particularly in industrial, control, DC and traction-related applications.
Can the ABB S201M-K4UC be used on DC circuits?
Yes. The S201M-K4UC belongs to ABB’s S200 M UC universal-current range and is suitable for operation at 220 V DC. The applicable polarity and ABB connection requirements must be observed when the breaker is installed on DC.
What is the current rating of the ABB 2CDS271061R0337?
The ABB 2CDS271061R0337 has a rated current In of 4 A and uses a Type K tripping characteristic.
What is the breaking capacity of the ABB S201M-K4UC?
The S201M-K4UC has a 10 kA short-circuit breaking capacity. Its ultimate short-circuit breaking capacity is 20 kA at 110 V DC and 10 kA at 220 V DC.
What does the Type K characteristic of the S201M-K4UC mean?
The Type K characteristic is intended for circuits where loads can produce elevated starting or inrush currents, making it particularly suitable for industrial equipment while still providing overload and short-circuit protection.
Trusted AC and DC Circuit Protection from ABB
ABB System pro M compact S200 M UC miniature circuit breakers combine flexible AC and DC operation, high short-circuit breaking performance and specialist tripping characteristics for industrial, control, railway, traction and DC electrical systems.
