2CCF019933R0001 ABB S804S-D2.5 2.5A 4-Pole Type D 50kA High Performance MCB

Why Choose the ABB S804S-D2.5 High Performance MCB?

The ABB S804S-D2.5 is a high-performance 4-pole miniature circuit breaker (MCB) designed to provide reliable overload and short-circuit protection in demanding electrical distribution systems. As part of the ABB S800S high-performance circuit breaker series, it combines compact modular construction with high breaking capacity for commercial and industrial electrical installations.

This current-limiting circuit breaker uses thermal protection for sustained overload conditions together with electromagnetic protection for short-circuit faults. Its Type D tripping characteristic is designed for circuits with relatively high starting or inrush currents, making it suitable for appropriate motor, transformer, control and other inductive-load applications.

With a rated current of 2.5 A, a 4-pole configuration and a maximum short-circuit breaking capacity of 50 kA, the S804S-D2.5 provides robust circuit protection where high prospective fault currents may occur. Its modular format supports integration into electrical distribution boards, switchgear assemblies and industrial control panels.

Key Advantages

• High-performance 4-pole miniature circuit breaker for demanding electrical installations.
• 2.5 A rated current suitable for protecting low-current circuits and equipment.
• Type D tripping characteristic suitable for circuits with relatively high starting and inrush currents.
• High short-circuit breaking capacity of up to 50 kA.
• Current-limiting operation helps reduce fault energy within protected circuits.
• Thermal and electromagnetic tripping provide overload and short-circuit protection.
• Four-pole configuration enables simultaneous protection across four conductors.
• Compact modular construction for commercial and industrial electrical systems.

Key Features

• ABB S800S high-performance MCB series.
• 2.5 A rated current.
• 4-pole configuration.
• Type D tripping characteristic.
• 50 kA maximum short-circuit breaking capacity.
• Thermal overload protection.
• Electromagnetic short-circuit protection.
• Current-limiting circuit breaker design.
• Designed for circuits with relatively high starting or inrush currents.
• Compact modular format for electrical distribution systems.
• Suitable for demanding industrial circuit protection applications.

High-Performance Circuit Protection for Electrical Systems

High-performance miniature circuit breakers such as the ABB S804S-D2.5 automatically disconnect protected circuits when excessive current results from an overload or short circuit. Thermal tripping responds to sustained overload conditions, while electromagnetic tripping provides rapid operation during high-current short-circuit faults.

The ABB S800S range is designed for installations requiring higher breaking performance than conventional miniature circuit breakers. The Type D characteristic of the S804S-D2.5 makes it particularly useful for appropriate circuits subject to relatively high short-duration inrush currents, while current-limiting operation helps reduce fault energy and protect downstream electrical equipment.

Typical Applications

• Industrial electrical distribution systems.
• Machinery and automation control panels.
• Low-current control and auxiliary circuits.
• Electrical distribution boards and switchgear.
• Circuits with relatively high starting or inrush currents.
• Transformer and inductive-load circuits where a Type D characteristic is appropriate.
• Commercial and industrial electrical installations.
• Applications requiring high short-circuit breaking capacity.