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2CCS863001R0577 ABB S803S-K50 50A 3-Pole Type K 50kA MCB
ABB S803S-K50 is a 50 A 3-pole Type K high-performance miniature circuit breaker with 50 kA ultimate short-circuit breaking capacity for demanding industrial circuit protection.
£201.52
Why Choose the ABB S803S-K50 High-Performance MCB?
The ABB S803S-K50 is a high-performance 3-pole miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short circuits in demanding industrial and commercial installations. Part of the ABB S800S high-performance circuit breaker series, it combines a 50 A rated current, Type K tripping characteristic and high breaking capacity for dependable protection of three-phase circuits.
With a rated ultimate short-circuit breaking capacity of 50 kA, the S803S-K50 is suited to installations where high prospective fault currents can occur. Its Type K characteristic is particularly suitable for circuits with functional peak or inrush currents, helping to reduce unwanted tripping during normal equipment starting while maintaining effective overload and short-circuit protection.
The S803S-K50 combines thermal overload protection with electromagnetic short-circuit protection in a compact modular design. Its 3-pole configuration provides simultaneous protection across three conductors, while DIN-rail mounting enables straightforward integration into industrial control panels and electrical distribution assemblies.
Key Advantages
- High-performance 3-pole miniature circuit breaker for demanding electrical installations.
- 50 A rated current with Type K tripping characteristic.
- High 50 kA ultimate short-circuit breaking capacity.
- Provides combined overload and short-circuit protection.
- Type K characteristic is suitable for loads with functional peak and inrush currents.
- Well suited to motor, transformer and industrial machinery circuits.
- Current-limiting design helps reduce the effects of short-circuit faults.
- Compact DIN-rail format for industrial control and distribution panels.
Key Features
- ABB S800S high-performance MCB series.
- 3-pole configuration.
- 50 A rated current.
- Type K tripping characteristic.
- 50 kA rated ultimate short-circuit breaking capacity (Icu).
- Thermal tripping mechanism for overload protection.
- Electromagnetic tripping mechanism for short-circuit protection.
- High-performance current-limiting circuit breaker design.
- Suitable for circuits with elevated functional peak currents.
- DIN-rail mounting for modular electrical installations.
- Designed in accordance with IEC/EN 60947-2.
High-Performance Protection for Inrush Loads
The ABB S800S range is engineered for electrical systems where high prospective short-circuit currents require substantial interruption capability. The S803S-K50 combines thermal overload protection with rapid electromagnetic short-circuit interruption to help safeguard conductors, equipment and downstream circuits from damaging overcurrents.
The Type K characteristic is particularly useful for equipment that can draw elevated current during starting or energisation. This makes the S803S-K50 suitable for motors, transformers, industrial machinery and other loads where tolerance of functional peak currents must be combined with dependable circuit protection.
Typical Applications
- Industrial three-phase control systems.
- Motor and machinery circuits.
- Transformer and auxiliary circuits.
- Industrial automation equipment.
- Circuits with functional peak or inrush currents.
- Commercial and industrial distribution panels.
- Production and process equipment.
- Installations with high prospective short-circuit currents.
Technical Specifications
| Series | S800S |
|---|---|
| ABB order code | 2CCS863001R0577 |
| Product type | High-performance miniature circuit breaker (MCB) |
| Number of poles | 3 |
| Rated current | 50 A |
| Tripping characteristic | K |
| Rated ultimate short-circuit breaking capacity (Icu) | 50 kA |
| Protection function | Overload and short-circuit protection |
| Standard | IEC/EN 60947-2 |
| Mounting type | DIN rail |
Frequently Asked Questions
What is the ABB S803S-K50 used for?
The S803S-K50 is a high-performance miniature circuit breaker used to protect three-phase electrical circuits against overloads and short circuits, including applications with functional peak or inrush currents.
What is the rated current of the ABB S803S-K50?
The ABB S803S-K50 has a rated current of 50 A.
What does the Type K characteristic mean?
The Type K tripping characteristic is suited to circuits with elevated functional peak or starting currents, such as motors and transformers, while maintaining effective overload and short-circuit protection.
What is the breaking capacity of the S803S-K50?
The S803S-K50 has a rated ultimate short-circuit breaking capacity (Icu) of 50 kA, providing high fault-current interruption capability.
How many poles does the ABB S803S-K50 have?
The S803S-K50 is a 3-pole circuit breaker designed to provide simultaneous protection across three conductors in three-phase electrical systems.
Trusted High-Performance Protection from ABB
ABB S800S high-performance miniature circuit breakers combine high short-circuit interruption capability, current-limiting technology and application-specific tripping characteristics for dependable protection of demanding industrial and commercial electrical systems.
