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.
2CDS251001R0577 ABB S201-K50 Miniature Circuit Breaker 1P Type K 50 A
ABB S201-K50 miniature circuit breaker, a 50 A single-pole Type K MCB from the System pro M compact S200 series providing 6 kA and 10 kA breaking capacities for overload and short-circuit protection.
£20.46
Why Choose the ABB S201-K50 Miniature Circuit Breaker?
The ABB S201-K50 is a robust and reliable single-pole miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short circuits. As part of the established ABB System pro M compact S200 MCB series, it combines delayed thermal overload protection with electromagnetic short-circuit protection for dependable circuit protection in commercial and industrial electrical installations.
Featuring a Type K tripping characteristic, the S201-K50 is particularly suited to circuits supplying inductive equipment such as motors, transformers and auxiliary control circuits where higher starting currents can occur. Its current-limiting design helps reduce the effects of fault currents while allowing the breaker to accommodate normal short-duration inrush currents associated with suitable loads.
With a rated current of 50 A, a single-pole configuration and breaking capacities of 6 kA to IEC/EN 60898-1 and 10 kA to IEC/EN 60947-2, the S201-K50 provides effective protection for demanding electrical installations. ABB order code 2CDS251001R0577 identifies this specific 50 A Type K model within the S200 range.
Key Advantages
- Reliable miniature circuit breaker for overload and short-circuit protection.
- 50 A rated current suitable for commercial and industrial circuits.
- Type K tripping characteristic suited to inductive loads with higher starting currents.
- Single-pole design occupying one modular DIN-rail position.
- Breaking capacity of 6 kA to IEC/EN 60898-1 and 10 kA to IEC/EN 60947-2.
- Current-limiting construction helps reduce electrical and thermal stresses during fault conditions.
Key Features
- ABB System pro M compact S200 series.
- 50 A rated current.
- 1-pole configuration.
- Type K tripping characteristic.
- Delayed thermal tripping mechanism for overload protection.
- Electromagnetic tripping mechanism for short-circuit protection.
- 6 kA breaking capacity according to IEC/EN 60898-1.
- 10 kA breaking capacity according to IEC/EN 60947-2.
- Compact 17.5 mm width for DIN-rail installations.
- Complies with IEC/EN 60898-1, IEC/EN 60947-2 and UL 1077.
Reliable Circuit Protection for Inductive Loads
Miniature circuit breakers such as the ABB S201-K50 automatically disconnect a circuit when excessive current occurs. The S200 design combines a delayed thermal tripping mechanism for overload protection with an electromagnetic mechanism for rapid response to short-circuit currents, helping protect cables, equipment and connected loads.
The Type K characteristic is particularly useful for circuits supplying inductive equipment that can draw elevated current during normal start-up. This makes the S201-K50 suitable for applications including motors, transformers and auxiliary circuits where dependable overload protection is required without unnecessary operation during permissible starting-current peaks.
Typical Applications
- Industrial motors and motor circuits.
- Transformers and inductive loads.
- Industrial control and automation panels.
- Auxiliary electrical circuits.
- Commercial and industrial distribution boards.
- Machinery and switchgear assemblies.
Technical Specifications
Tick the specs you need, then view products that match.
| Breaking Capacity | 6 kA | |
|---|---|---|
| Certification | UL 1077 | |
| Series | System pro M compact S200 | |
| ABB order code | 2CDS251001R0577 | |
| Product type | Miniature circuit breaker (MCB) | |
| Number of poles | 1 | |
| Number of protected poles | 1 | |
| Rated current | 50 A | |
| Tripping characteristic | Type K | |
| Rated operational voltage (IEC 60898-1) | 230/400 V AC | |
| Rated operational voltage (IEC 60947-2) | 230 V AC | |
| Breaking capacity (IEC/EN 60898-1) | 6 kA | |
| Breaking capacity (IEC/EN 60947-2) | 10 kA | |
| Protection rating | IP20 at terminals | |
| Mounting type | DIN rail | |
| Terminal type | Screw terminal | |
| Connection capacity | 0.75–25 mm² | |
| Width | 17.5 mm | |
| Height | approx. 88 mm | |
| Depth | approx. 69 mm | |
| Weight | approx. 0.12 kg | |
| Power loss per pole | 3.1 W | |
| Operating temperature | -25 to +55 °C | |
| Electrical endurance | 20,000 cycles | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 | |
| EAN | 4016779551120 |
Frequently Asked Questions
What is the ABB S201-K50 used for?
The ABB S201-K50 is a single-pole miniature circuit breaker used to protect electrical circuits against overloads and short circuits, with its Type K characteristic making it particularly suitable for inductive loads such as motors and transformers.
What is the current rating of the S201-K50?
The S201-K50 has a rated current of 50 A.
What does the Type K characteristic mean?
The Type K tripping characteristic is designed for circuits where elevated starting or inrush currents can occur, making it suitable for applications such as motors, transformers and other inductive loads.
What is the breaking capacity of the ABB S201-K50?
The S201-K50 provides a breaking capacity of 6 kA according to IEC/EN 60898-1 and 10 kA according to IEC/EN 60947-2.
How is the ABB S201-K50 installed?
The breaker is designed for DIN-rail mounting in electrical distribution boards, switchgear assemblies and industrial control panels.
Trusted Circuit Protection from ABB
ABB System pro M compact S200 miniature circuit breakers provide dependable overload and short-circuit protection for electrical installations, combining compact DIN-rail construction with established thermal and electromagnetic tripping technology.
