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2CCF019895R0001 ABB S803S-B4 High Performance MCB 4 A 3P Type B 50 kA
ABB S803S-B4 is a 4 A three-pole Type B high-performance miniature circuit breaker with up to 50 kA ultimate short-circuit breaking capacity for demanding industrial and commercial circuit protection.
£219.70
Why Choose the ABB S803S-B4 High Performance MCB?
The ABB S803S-B4 is a high-performance three-pole miniature circuit breaker (MCB) designed to provide dependable overload and short-circuit protection in demanding electrical distribution systems. As part of the ABB S800S high-performance MCB series, it combines robust circuit protection with high breaking capacity for industrial and commercial installations.
This circuit breaker features a Type B tripping characteristic, making it suitable for circuits with relatively low inrush currents, including resistive loads, lighting, control equipment and general electrical distribution. Thermal and electromagnetic tripping mechanisms provide reliable protection against sustained overloads and short-circuit faults.
With a rated current of 4 A, a three-pole configuration and a rated ultimate short-circuit breaking capacity of up to 50 kA, the S803S-B4 is engineered for applications requiring dependable three-phase circuit protection and high fault interruption performance. Its modular construction supports straightforward integration into electrical distribution boards, machine panels and control systems.
Key Advantages
- High-performance miniature circuit breaker for demanding electrical installations.
- 4 A rated current for low-current three-phase circuits.
- Three-pole configuration provides simultaneous protection and disconnection of three conductors.
- Type B tripping characteristic suited to loads with relatively low inrush currents.
- Up to 50 kA rated ultimate short-circuit breaking capacity for high fault-current applications.
- Thermal and electromagnetic protection against overloads and short circuits.
- Compact modular construction for integration into industrial electrical equipment.
Key Features
- ABB S800S high-performance MCB series.
- 4 A rated current.
- 3-pole configuration.
- Type B tripping characteristic.
- Up to 50 kA rated ultimate short-circuit breaking capacity.
- Current-limiting circuit breaker design.
- Thermal overload and electromagnetic short-circuit protection.
- Modular design for electrical distribution and control equipment.
- Suitable for demanding industrial and commercial installations.
High-Performance Circuit Protection
The ABB S800S range is designed to protect electrical circuits and connected equipment against overload and short-circuit conditions where high interruption capability is required. Thermal tripping responds to sustained overload currents, while electromagnetic tripping provides rapid disconnection when a short-circuit fault occurs.
The Type B characteristic provides sensitive magnetic protection for circuits where substantial starting currents are not normally expected. Combined with the S800S series' current-limiting performance and high breaking capacity, the S803S-B4 provides robust protection for demanding three-phase industrial and commercial electrical systems.
Typical Applications
- Industrial electrical distribution systems.
- Three-phase control and auxiliary circuits.
- Machine control panels and automation equipment.
- Resistive electrical loads.
- Commercial and industrial lighting systems.
- Distribution boards and electrical panels.
- Circuits with high prospective short-circuit currents.
Technical Specifications
| Series | S800S |
|---|---|
| ABB order code | 2CCF019895R0001 |
| Product type | High-performance miniature circuit breaker (MCB) |
| Rated current | 4 A |
| Number of poles | 3 |
| Tripping characteristic | Type B |
| Rated ultimate short-circuit breaking capacity (Icu) | up to 50 kA |
| Rated insulation voltage (Ui) | 690 V |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Frequency | 50–60 Hz |
| Protection rating | IP20 |
| Mounting type | DIN rail |
Frequently Asked Questions
What is the ABB S803S-B4 used for?
The ABB S803S-B4 is used to protect three-pole electrical circuits against overloads and short circuits, particularly in industrial and commercial installations requiring high breaking capacity.
What is the rated current of the S803S-B4?
The S803S-B4 has a rated current of 4 A.
What does the Type B characteristic mean?
The Type B tripping characteristic is suited to circuits with relatively low inrush currents, including resistive loads, lighting and general control circuits.
What is the breaking capacity of the ABB S803S-B4?
The S803S-B4 provides a rated ultimate short-circuit breaking capacity of up to 50 kA, depending on the applicable operating voltage and standard.
How many poles does the S803S-B4 have?
The ABB S803S-B4 is a three-pole (3P) high-performance miniature circuit breaker.
Trusted ABB Circuit Protection
ABB S800 high-performance miniature circuit breakers provide dependable overload and short-circuit protection for demanding electrical systems, combining high interruption capability with robust modular construction and reliable operation.
