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2CCS863002R0501 ABB S803S-D50-R High Performance MCB 50kA 3P Type D 50A
ABB S803S-D50-R is a 50 A three-pole Type D high-performance miniature circuit breaker with ring-terminal connections and up to 50 kA ultimate short-circuit breaking capacity at 240/415 V AC.
£192.32
Why Choose the ABB S803S-D50-R High Performance MCB?
The ABB S803S-D50-R is a high-performance three-pole miniature circuit breaker (MCB) designed to provide reliable overload and short-circuit protection in demanding electrical distribution systems. Part of the advanced ABB S800S high-performance circuit breaker range, it combines a rated current of 50 A, D tripping characteristic and exceptionally high short-circuit breaking performance for industrial, commercial and infrastructure applications.
The S803S-D50-R uses thermal tripping for overload protection together with an electromagnetic tripping mechanism for rapid protection against short circuits. Its D characteristic is particularly suitable for circuits and equipment with relatively high inrush currents, helping prevent unwanted tripping while maintaining dependable protection under fault conditions.
With three protected poles and a maximum ultimate short-circuit breaking capacity of 50 kA at 240/415 V AC, the S803S-D50-R is engineered for installations where substantially higher fault-current capability is required than is available from conventional miniature circuit breakers. The -R version features ring-terminal connections, providing a secure connection method for compatible electrical installations.
Key Advantages
- High-performance three-pole miniature circuit breaker for demanding electrical protection applications.
- 50 A rated current for industrial and commercial distribution circuits.
- D tripping characteristic suitable for equipment with high starting or inrush currents.
- Maximum ultimate breaking capacity of 50 kA at 240/415 V AC.
- Thermal and electromagnetic tripping mechanisms provide overload and short-circuit protection.
- Ring-terminal connection for secure electrical termination.
- Part of ABB's S800S high-performance MCB platform.
- Designed for use in residential, commercial and industrial electrical installations where applicable.
Key Features
- ABB S800S high-performance MCB series.
- 50 A rated current.
- 3-pole configuration.
- D tripping characteristic.
- 50 kA ultimate short-circuit breaking capacity at 240/415 V AC.
- 30 kA ultimate breaking capacity at 254/440 V AC.
- 6 kA ultimate breaking capacity at 400/690 V AC.
- Thermal overload and electromagnetic short-circuit tripping.
- Current-limiting circuit breaker design with rapid arc extinction.
- Ring-terminal electrical connections.
High-Performance Circuit Protection for Demanding Installations
High-performance miniature circuit breakers such as the ABB S803S-D50-R automatically disconnect a circuit when excessive current is caused by an overload or short circuit. The thermal mechanism responds to sustained overload conditions, while the electromagnetic mechanism provides rapid operation during high fault currents.
The D characteristic makes this circuit breaker especially useful where connected equipment can draw a significant current during start-up. Combined with the high breaking capability of the S800S platform, this enables dependable protection of circuits serving motors, transformers, machinery and other demanding electrical loads.
Typical Applications
- Industrial electrical distribution systems.
- Motor and machinery supply circuits.
- Transformers and loads with high inrush currents.
- Industrial control panels and switchboards.
- Commercial electrical distribution systems.
- Manufacturing and production equipment.
- Infrastructure and building electrical installations.
Technical Specifications
| Series | S800S High Performance MCBs |
|---|---|
| Alternative SKU | S803SD50R |
| ABB order code | 2CCS863002R0501 |
| Product type | High-performance miniature circuit breaker |
| Number of poles | 3 |
| Rated current | 50 A |
| Tripping characteristic | D |
| Ultimate short-circuit breaking capacity | 50 kA at 240/415 V AC |
| Rated short-circuit capacity | 25 kA at 230/400 V AC |
| Connection type | Ring terminal |
| Protection mechanisms | Thermal overload and electromagnetic short-circuit tripping |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2 |
| Weight | approx. 0.735 kg |
Frequently Asked Questions
What is the ABB S803S-D50-R used for?
The ABB S803S-D50-R is a high-performance three-pole MCB used to protect electrical circuits against overloads and short circuits, particularly in installations with demanding fault-current and inrush-current requirements.
What is the rated current of the S803S-D50-R?
The circuit breaker has a rated current of 50 A.
What does the D characteristic mean?
The D tripping characteristic is intended for circuits with relatively high inrush currents, making it suitable for applications such as motors, transformers and industrial machinery while still providing overload and short-circuit protection.
What is the breaking capacity of the ABB S803S-D50-R?
The S803S-D50-R has a maximum ultimate short-circuit breaking capacity of 50 kA at 240/415 V AC, with breaking capacity dependent on the operating voltage.
How many poles does the S803S-D50-R have?
The S803S-D50-R is a three-pole circuit breaker designed for simultaneous protection and switching of three conductors in suitable electrical systems.
Trusted High-Performance Protection from ABB
ABB S800 high-performance miniature circuit breakers are designed for demanding electrical distribution applications where dependable overload protection, rapid short-circuit interruption and high fault-current capability are required.
