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2CCF030044R0001 ABB S803S-UCB4 High Performance MCB 50 kA 3P Type B 4 A
ABB S803S-UCB4 is a 4 A three-pole Type B high-performance miniature circuit breaker with 50 kA maximum breaking capacity for overload and short-circuit protection in demanding electrical installations.
£263.74
Why Choose the ABB S803S-UCB4 High Performance MCB?
The ABB S803S-UCB4 is a high-performance three-pole miniature circuit breaker (MCB) designed to provide dependable overload and short-circuit protection in demanding electrical installations. As part of the ABB S800S high-performance circuit breaker series, it combines a compact modular design with high fault-current interruption capability for industrial and specialised electrical applications.
This current-limiting circuit breaker features a Type B tripping characteristic, a rated current of 4 A and three protected poles. Thermal and electromagnetic tripping mechanisms provide protection against sustained overloads and short-circuit faults, while the S800S platform's rapid arc-extinction technology helps minimise the effects of high fault currents.
With a rated ultimate short-circuit breaking capacity of 50 kA and a three-pole (3P) configuration, the S803S-UCB4 is designed for circuits requiring high-performance protection in a compact format. Its interchangeable cage terminals support secure electrical connections and practical installation within distribution and control equipment.
Key Advantages
- High-performance MCB with 50 kA maximum breaking capacity.
- 4 A rated current for low-current protected circuits.
- Type B tripping characteristic for responsive protection against overcurrents.
- Three-pole (3P) construction for three-phase circuit protection.
- Thermal overload and electromagnetic short-circuit tripping mechanisms.
- Current-limiting design with rapid arc extinction for demanding electrical installations.
Key Features
- ABB S800S high-performance MCB series.
- 4 A rated current.
- Type B characteristic.
- Three-pole (3P) configuration.
- 50 kA rated ultimate short-circuit breaking capacity.
- Current-limiting circuit breaker design.
- Interchangeable cage terminal connection system.
- Thermal overload and electromagnetic short-circuit protection.
Reliable High-Performance Circuit Protection
High-performance miniature circuit breakers such as the ABB S803S-UCB4 protect electrical circuits by automatically interrupting current during overload and short-circuit conditions. Thermal tripping responds to sustained overcurrents, while the electromagnetic mechanism provides rapid interruption when a short-circuit fault occurs.
The ABB S800S range is engineered for applications where high fault-current interruption capability is required. The S803S-UCB4 combines a three-pole configuration, Type B characteristic and current-limiting design with rapid arc extinction, providing robust protection for industrial distribution, control and equipment circuits.
Typical Applications
- Industrial electrical control panels.
- Three-phase electrical distribution circuits.
- Industrial machinery and automation systems.
- Power distribution equipment.
- Control and auxiliary circuits.
- Installations requiring high short-circuit interruption capability.
Technical Specifications
| Series | S800S |
|---|---|
| ABB order code | 2CCF030044R0001 |
| Product group | S800 / S800P / S750 MCB |
| Product type | High-performance miniature circuit breaker (MCB) |
| Rated current | 4 A |
| Number of poles | 3P |
| Tripping characteristic | Type B |
| Rated ultimate short-circuit breaking capacity | 50 kA |
| Protection function | Overload and short-circuit protection |
| Overload release | Thermal |
| Short-circuit release | Electromagnetic |
| Terminal type | Interchangeable cage terminal |
| Weight | 0.74 kg |
| GTIN / EAN | 7612271502751 |
Frequently Asked Questions
What is the ABB S803S-UCB4 used for?
The S803S-UCB4 is a high-performance miniature circuit breaker designed to protect three-pole electrical circuits against overloads and short circuits in demanding electrical installations.
What is the rated current of the ABB S803S-UCB4?
The ABB S803S-UCB4 has a rated current of 4 A.
What tripping characteristic does the S803S-UCB4 use?
The S803S-UCB4 uses a Type B tripping characteristic for dependable overcurrent and short-circuit protection.
What is the breaking capacity of the ABB S803S-UCB4?
The S803S-UCB4 has a rated ultimate short-circuit breaking capacity of 50 kA.
What is the ABB order code for the S803S-UCB4?
The ABB order code is 2CCF030044R0001, and the product has GTIN / EAN 7612271502751.
Trusted Industrial Circuit Protection from ABB
ABB S800S high-performance miniature circuit breakers provide dependable overload and short-circuit protection for demanding electrical systems, combining high breaking capacity, current limitation and rapid arc extinction in a robust modular design.
