Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
2CDS271061R0157 ABB S201M-K0.5UC 0.5A 1P Type K 10kA AC/DC Miniature Circuit Breaker
ABB 2CDS271061R0157 S201M-K0.5UC is a 0.5 A single-pole Type K universal-current miniature circuit breaker with 10 kA short-circuit capacity for AC and DC industrial circuit protection.
£80.72
Why Choose the ABB S201M-K0.5UC Miniature Circuit Breaker?
The ABB S201M-K0.5UC, order code 2CDS271061R0157, is a high-performance single-pole miniature circuit breaker (MCB) for AC and DC applications. Part of the ABB System pro M compact® S 200 M UC series, it provides reliable overload and short-circuit protection for low-current industrial, control and direct-current circuits.
Rated at 0.5 A with a Type K tripping characteristic, the S201M-K0.5UC is particularly suited to low-current circuits and applications with inductive loads where short-duration inrush currents may occur. Its universal-current design supports both AC and DC operation, including single-pole applications at 230 V AC and up to 220 V DC.
The S201M-K0.5UC provides a short-circuit breaking capacity of 10 kA at 220 V DC, with ABB specifying an ultimate short-circuit breaking capacity of 20 kA at 110 V DC. Compact DIN-rail construction and compatibility with System pro M compact® accessories make it a flexible solution for industrial automation, auxiliary power and DC distribution applications.
Key Advantages
- Universal AC/DC miniature circuit breaker for industrial applications.
- Low 0.5 A rated current for sensitive control and auxiliary circuits.
- Type K tripping characteristic suitable for inductive loads and circuits with short-duration inrush currents.
- 10 kA short-circuit breaking capacity at 220 V DC.
- Single-pole operation at up to 220 V DC.
- Suitable for AC applications at approximately 230 V AC.
- Compatible with the established ABB System pro M compact® accessory range.
- Compact DIN-rail construction simplifies installation in control and distribution panels.
Key Features
- ABB S 200 M UC universal-current MCB series.
- Single-pole (1P) configuration.
- 0.5 A rated current.
- K-curve tripping characteristic.
- 10 kA short-circuit breaking capacity.
- Suitable for AC and DC circuit protection.
- Single-pole DC operation up to 220 V DC.
- IP20 protection rating.
- Electrical endurance of up to 20,000 cycles.
- Operating temperature range of -25 to +55 °C.
- Compact modular DIN-rail construction.
- For DC applications, the specified device polarity must be observed.
Universal-Current Protection for Low-Current Industrial Circuits
The ABB S201M-K0.5UC provides thermal-magnetic protection, automatically disconnecting the circuit when an overload or short circuit occurs. Its low 0.5 A current rating makes it well suited to sensitive auxiliary, instrumentation and control circuits, while the K characteristic accommodates the temporary inrush currents associated with suitable inductive loads.
The S 200 M UC range is engineered specifically for universal-current applications and can therefore be used in both AC and DC systems. For DC installations, the single-pole S201M-K0.5UC supports voltages up to 220 V DC, while multi-pole configurations within the wider series can support higher DC system voltages. Correct polarity must be observed when installing the breaker in a DC circuit.
Typical Applications
- Industrial low-current control circuits.
- AC and DC electrical distribution panels.
- Automation and machine control systems.
- Instrumentation and measurement circuits.
- DC auxiliary and battery-powered systems.
- Industrial circuits with inductive loads.
- TN and IT electrical systems.
- Rail and transportation electrical equipment.
- OEM machinery and control-panel construction.
Technical Specifications
Tick the specs you need, then view products that match.
| Certification | UL 1077 | |
|---|---|---|
| Series | System pro M compact® S 200 M UC | |
| Alternate catalogue number | S201MUC-K0.5 | |
| Order code | 2CDS271061R0157 | |
| Product type | AC/DC miniature circuit breaker | |
| Number of poles | 1P | |
| Number of protected poles | 1 | |
| Rated current | 0.5 A | |
| Tripping characteristic | Type K | |
| Rated operational voltage | 253 V AC / 220 V DC | |
| Typical AC application voltage | 230 V AC | |
| Rated ultimate short-circuit breaking capacity at 253 V AC | 10 kA | |
| Rated ultimate short-circuit breaking capacity at 110 V DC | 20 kA | |
| Rated 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 per pole | approx. 1.1 W | |
| Protection rating | IP20 | |
| Electrical endurance | 20,000 cycles | |
| Operating temperature | -25 to +55 °C | |
| Mounting | DIN rail | |
| Product weight | approx. 0.125 kg | |
| EAN | 4013614430886 | |
| Standards | IEC/EN 60947-2, UL 1077, CSA 22.2 No. 235 |
Frequently Asked Questions
What is the ABB S201M-K0.5UC used for?
The ABB S201M-K0.5UC is a single-pole universal-current miniature circuit breaker designed to protect low-current AC and DC circuits against overloads and short circuits.
What is the rated current of the ABB S201M-K0.5UC?
The S201M-K0.5UC has a rated current of 0.5 A and uses a Type K tripping characteristic.
What is the breaking capacity of the ABB 2CDS271061R0157?
The S201M-K0.5UC has an ultimate short-circuit breaking capacity of 10 kA at 220 V DC and 20 kA at 110 V DC; ABB also specifies 10 kA at 253 V AC.
Can the ABB S201M-K0.5UC be used on DC circuits?
Yes. The ABB S 200 M UC range is specifically designed for AC and DC applications, and this single-pole model supports operation at up to 220 V DC when the specified device polarity is observed.
What standards and approvals apply to the ABB S201M-K0.5UC?
The S201M-K0.5UC is specified to IEC/EN 60947-2, UL 1077 and CSA 22.2 No. 235, supporting its use in demanding industrial AC and DC circuit-protection applications.
Trusted ABB AC/DC Circuit Protection
ABB System pro M compact® S 200 M UC miniature circuit breakers provide dependable overload and short-circuit protection for universal-current applications, combining high breaking capacity, flexible AC/DC operation and compact modular construction for demanding industrial electrical systems.
