2CCF030047R0001 ABB S804S-UCB6 4-Pole Type B 6A 50kA High-Performance MCB

Why Choose the ABB S804S-UCB6 High-Performance MCB?

The ABB S804S-UCB6 is a high-performance 4-pole miniature circuit breaker (MCB) designed to provide dependable overload and short-circuit protection in demanding electrical installations. Part of the established ABB S800S high-performance MCB series, this model combines a 6 A rated current, B tripping characteristic and an exceptionally high 50 kA breaking capacity.

The S804S-UCB6 is designed for applications where high prospective fault currents require greater short-circuit performance than conventional miniature circuit breakers can provide. Its B characteristic provides sensitive magnetic tripping and is particularly appropriate for circuits with relatively low inrush currents, including resistive loads, control circuits and general electrical distribution.

With four protected poles, the S804S-UCB6 enables simultaneous protection and switching across multipole circuits while retaining the robust construction associated with ABB’s S800 platform. ABB order code 2CCF030047R0001 identifies this specific 6 A Type B version within the S800 / S800P / S750 MCB product group.

Key Advantages

• High-performance 4-pole miniature circuit breaker for demanding electrical installations.
• 50 kA breaking capacity for systems with high prospective short-circuit currents.
• 6 A rated current for low-current distribution and control circuits.
• Type B tripping characteristic suitable for circuits with relatively low inrush currents.
• Provides combined overload and short-circuit protection.
• Four-pole construction supports simultaneous protection and isolation of multipole circuits.
• Suitable for industrial control, distribution and equipment protection applications.
• Part of ABB’s proven S800 high-performance circuit protection platform.

Key Features

• ABB S800S high-performance MCB series.
• Four-pole circuit breaker configuration.
• 6 A rated current.
• B tripping characteristic.
• 50 kA short-circuit breaking capacity.
• Thermal-magnetic protection against overload and short-circuit conditions.
• Suitable for circuits where low normal inrush current favours a Type B characteristic.
• High breaking capacity for demanding industrial distribution systems.
• Compact modular construction for installation in electrical distribution and control equipment.

Reliable High-Performance Circuit Protection

The ABB S804S-UCB6 combines thermal overload protection with rapid magnetic short-circuit protection. Sustained overcurrents cause the thermal mechanism to operate, while severe fault currents trigger fast magnetic disconnection, helping protect conductors and connected equipment against damaging electrical and thermal stresses.

Its Type B characteristic is intended for circuits where normal switching currents are comparatively low, making the S804S-UCB6 suitable for resistive loads, control equipment and general distribution applications. The 50 kA breaking capacity makes the device particularly valuable in industrial systems where substantial prospective fault currents can occur.

Typical Applications

• Industrial electrical distribution systems.
• Control and auxiliary circuits.
• Resistive electrical loads.
• Industrial machinery and automation equipment.
• Electrical control panels and distribution assemblies.
• Circuits with relatively low functional inrush currents.
• Installations with high prospective short-circuit currents.
• Commercial and industrial equipment protection.