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2CCF030020R0001 ABB S804S-UCK5 4-Pole Type K 5A 50kA High Performance MCB
ABB S804S-UCK5 is a 4-pole 5 A K-characteristic high-performance miniature circuit breaker with 50 kA breaking capacity, designed for overload and short-circuit protection in demanding DC electrical circuits.
£328.24
Why Choose the ABB S804S-UCK5 High Performance MCB?
The ABB S804S-UCK5 is a high-performance 4-pole miniature circuit breaker (MCB) designed to protect demanding DC electrical circuits against overloads and short circuits. Part of ABB’s established S800S high-performance MCB series, this model combines a 5 A rated current, K characteristic and exceptionally high 50 kA breaking capacity.
Designed specifically for direct-current applications, the S804S-UCK5 is suitable for circuits where high fault levels, selective coordination and dependable overcurrent protection are important. Its K characteristic is particularly suited to loads such as motors, transformers and auxiliary circuits, accommodating functional peak currents while providing sensitive overload protection for cables and connected equipment.
With four protected poles, a rated voltage of up to 1000 V DC and compliance with IEC/EN 60947-2, the S804S-UCK5 provides robust circuit protection for industrial and commercial installations. ABB order code 2CCF030020R0001 identifies this specific 5 A model within the S800S-UCK DC range.
Key Advantages
- High-performance 4-pole miniature circuit breaker for demanding DC applications.
- 50 kA breaking capacity for installations with high prospective fault currents.
- 5 A rated current with K tripping characteristic.
- Designed for protection against both overloads and short circuits.
- K characteristic accommodates functional peak currents while providing sensitive overcurrent protection.
- Suitable for motor, transformer and auxiliary control circuits.
- High breaking capacity supports selective coordination and back-up protection arrangements.
- ABB S800 construction provides dependable protection for industrial and commercial electrical systems.
Key Features
- ABB S800S high-performance MCB series.
- Four poles, all protected.
- 5 A rated current.
- K characteristic for loads with higher starting or peak currents.
- 50 kA rated ultimate short-circuit breaking capacity (Icu).
- Rated voltage up to 1000 V DC.
- 1000 V insulation voltage (Ui).
- 8 kV rated impulse withstand voltage (Uimp).
- IP20 degree of protection.
- Suitable for connection of substantial conductor cross-sections in industrial distribution systems.
- Designed and tested to IEC/EN 60947-2.
Reliable High-Performance DC Circuit Protection
The ABB S804S-UCK5 combines thermal overload protection with rapid short-circuit protection to disconnect abnormal currents before they can cause serious damage to cables and connected equipment. Its K characteristic is designed for circuits that can experience substantial normal starting or peak currents, making it particularly useful for motors, transformers and industrial auxiliary loads.
The S800S platform is engineered for applications where conventional miniature circuit breakers may not provide sufficient breaking capacity. With a rated breaking capacity of 50 kA, the S804S-UCK5 can be incorporated into industrial distribution systems where high prospective short-circuit currents, selectivity with upstream MCCBs or back-up protection of downstream devices must be considered.
Typical Applications
- Industrial DC distribution and control circuits.
- DC motor circuits requiring K-characteristic protection.
- Transformer and auxiliary circuits.
- Industrial machinery and automation systems.
- Control panels with high prospective short-circuit currents.
- Commercial and industrial electrical distribution systems.
- Applications requiring selective coordination with upstream circuit breakers.
- Back-up protection for downstream miniature circuit breakers.
Technical Specifications
| Series | S800S |
|---|---|
| ABB order code | 2CCF030020R0001 |
| Product type | High-performance miniature circuit breaker (MCB) |
| Number of poles | 4 |
| Protected poles | 4 |
| Rated current | 5 A |
| Tripping characteristic | K |
| Rated voltage | up to 1000 V DC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Rated ultimate short-circuit breaking capacity (Icu) | 50 kA |
| Application | DC circuits |
| Standard | IEC/EN 60947-2 |
| Energy limiting class | 3 |
| Overvoltage category | III |
| Protection rating | IP20 |
| Operating ambient temperature | -25 to +60 °C |
| Connection capacity, stranded conductor | 1–70 mm² |
| Connection capacity, solid conductor | 1–50 mm² |
| Installation depth | 82.5 mm |
| Width | 6 module units |
| Weight | approx. 0.98 kg |
Frequently Asked Questions
What is the ABB S804S-UCK5 used for?
The ABB S804S-UCK5 is a high-performance miniature circuit breaker designed to protect DC circuits against overloads and short circuits, particularly in demanding industrial and commercial installations.
What is the current rating of the ABB S804S-UCK5?
The S804S-UCK5 has a rated current of 5 A and uses ABB’s K tripping characteristic.
What is the breaking capacity of the S804S-UCK5?
The breaker provides a rated ultimate short-circuit breaking capacity of 50 kA, making it suitable for circuits with high prospective fault currents.
How many poles does the ABB S804S-UCK5 have?
The S804S-UCK5 is a 4-pole circuit breaker with all four poles protected.
What applications suit the K characteristic?
The K characteristic is well suited to loads such as motors, transformers and auxiliary circuits that can experience relatively high functional peak or starting currents while still requiring sensitive overload protection.
Trusted High-Performance Protection from ABB
ABB S800 high-performance miniature circuit breakers provide robust overload and short-circuit protection for demanding industrial electrical systems, combining high breaking capacity with application-specific tripping characteristics and dependable circuit protection.
