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2CDS272061R0577 ABB S202M-K50UC 50 A 2-Pole Type K Miniature Circuit Breaker 10 kA
ABB S202M-K50UC is a 50 A 2-pole Type K universal-current miniature circuit breaker with 10 kA breaking capacity at 440 V DC, designed for reliable overload and short-circuit protection in industrial, motor, DC and traction applications.
£247.05
Why Choose the ABB S202M-K50UC Miniature Circuit Breaker?
The ABB S202M-K50UC is a high-performance 2-pole miniature circuit breaker (MCB) designed to provide reliable overload and short-circuit protection in both AC and DC electrical systems. As part of the ABB System pro M compact S200 M UC universal-current series, it combines flexible AC/DC operation with robust circuit protection for industrial, commercial, automation and traction applications.
Featuring a 50 A rated current, Type K tripping characteristic and a 10 kA short-circuit breaking capacity at 440 V DC, the S202M-K50UC is particularly suited to circuits supplying motors, transformers and auxiliary equipment with elevated starting currents. The K characteristic provides dependable fault protection while accommodating the normal inrush currents associated with many inductive loads.
The two-pole configuration is designed for applications up to 440 V DC, with both Icu and Ics rated at 10 kA at this voltage. Its modular DIN-rail construction allows straightforward integration into electrical distribution boards, machinery and industrial control panels, while compatibility with ABB System pro M compact accessories provides additional installation flexibility.
Key Advantages
- High-performance 2-pole miniature circuit breaker for AC and DC applications.
- 50 A rated current for industrial power and auxiliary circuits.
- Type K tripping characteristic suited to loads with elevated starting currents.
- 10 kA Icu and Ics at 440 V DC for robust DC circuit protection.
- Rated ultimate short-circuit breaking capacity of 25 kA at 220 V DC.
- Suitable for motors, transformers and other inductive electrical loads.
- Compatible with the established ABB System pro M compact accessory range.
- DIN-rail mounting enables straightforward installation in control and distribution panels.
Key Features
- ABB System pro M compact S200 M UC series.
- 2-pole configuration.
- 50 A rated current.
- Type K tripping characteristic.
- 10 kA breaking capacity at 440 V DC.
- 25 kA ultimate breaking capacity at 220 V DC.
- UL 1077 interrupting rating of 10 kA at 500 V DC.
- Total power loss of approximately 8.1 W at rated operating conditions.
- Compliance with IEC/EN 60947-2, UL 1077 and CSA 22.2 No. 235.
- Standard modular DIN-rail mounting.
Reliable Protection for Motors and Industrial Circuits
Miniature circuit breakers such as the ABB S202M-K50UC protect electrical wiring and connected equipment against excessive current caused by overloads and short circuits. The breaker automatically disconnects the protected circuit when abnormal current conditions occur, helping protect conductors, machinery and electrical equipment.
The Type K characteristic makes the S202M-K50UC particularly useful for circuits containing motors, transformers and other inductive loads that can produce elevated starting currents. Combined with the AC/DC capability and high DC short-circuit performance of the S200 M UC platform, it provides a versatile protection solution for industrial machinery, auxiliary circuits, DC distribution and traction systems.
Typical Applications
- Industrial machinery and automation systems.
- Motor and inductive-load circuits.
- Transformers and auxiliary circuits.
- DC power distribution systems.
- Railway and traction electrical systems.
- Industrial control and distribution panels.
- Commercial and industrial electrical installations.
Technical Specifications
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| Certification | UL 1077 | |
|---|---|---|
| Series | System pro M compact S200 M UC | |
| ABB order code | 2CDS272061R0577 | |
| Product type | Miniature circuit breaker (MCB) | |
| Product group | DC / Traction MCB | |
| Number of poles | 2 | |
| Rated current | 50 A | |
| Tripping characteristic | Type K | |
| Rated DC voltage | 440 V DC | |
| Rated ultimate short-circuit breaking capacity (Icu) at 440 V DC | 10 kA | |
| Rated service short-circuit breaking capacity (Ics) at 440 V DC | 10 kA | |
| Rated ultimate short-circuit breaking capacity at 220 V DC | 25 kA | |
| Rated ultimate short-circuit breaking capacity at 440 V AC | 6 kA | |
| UL 1077 interrupting rating at 500 V DC | 10 kA | |
| UL 1077 interrupting rating at 480Y / 277 V AC | 6 kA | |
| Power loss | 8.1 W | |
| Power loss per pole | 4.03 W | |
| Standards | CSA 22.2 No. 235, IEC/EN 60947-2, UL 1077 | |
| Mounting type | DIN rail | |
| Width | 35 mm | |
| Weight | approx. 0.25 kg | |
| EAN / UPC | 4013614433306 |
Frequently Asked Questions
What is the ABB S202M-K50UC used for?
The ABB S202M-K50UC is a 2-pole miniature circuit breaker designed to protect AC and DC circuits against overload and short-circuit currents, including industrial circuits supplying motors, transformers and auxiliary equipment.
What is the rated current of the S202M-K50UC?
The S202M-K50UC has a rated current of 50 A.
What does the Type K characteristic mean?
The Type K tripping characteristic is suited to circuits containing inductive loads with elevated starting currents, such as motors and transformers, while providing dependable overload and short-circuit protection.
What is the breaking capacity of the ABB S202M-K50UC?
The S202M-K50UC has both an Icu and Ics rating of 10 kA at 440 V DC and an ultimate short-circuit breaking capacity of 25 kA at 220 V DC.
Can the S202M-K50UC be used in DC applications?
Yes. The ABB S202M-K50UC belongs to the S200 M UC universal-current range and its two-pole configuration is designed for DC applications up to 440 V DC.
Trusted ABB Circuit Protection
ABB System pro M compact S200 M UC miniature circuit breakers provide dependable AC and DC protection for industrial machinery, motors, auxiliary circuits, DC distribution and traction systems where reliable overload and short-circuit protection is required.
