2CCF019930R0001 ABB S804S-D1 1A 4-Pole Type D 50kA High Performance MCB

Why Choose the ABB S804S-D1 High Performance MCB?

The ABB S804S-D1 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 residential, commercial and industrial electrical installations.

This current-limiting circuit breaker uses two complementary tripping mechanisms, with thermal tripping for overload protection and electromechanical tripping for short-circuit protection. Its Type D tripping characteristic is suited to circuits with relatively high starting or inrush currents, making it appropriate for demanding equipment, control and distribution applications.

With a rated current of 1 A, a 4-pole configuration and a maximum ultimate short-circuit breaking capacity of 50 kA at 240/415 V AC, the S804S-D1 provides robust protection for low-current circuits where high prospective fault currents may occur. The S800S platform can be used at voltages up to 400/690 V AC and incorporates fast arc extinction to support dependable circuit protection.

Key Advantages

• High-performance 4-pole miniature circuit breaker for demanding electrical installations.
• 1 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.
• Maximum ultimate short-circuit breaking capacity of 50 kA at 240/415 V AC.
• Current-limiting operation helps reduce the energy passed through during fault conditions.
• Thermal and electromechanical tripping mechanisms provide overload and short-circuit protection.
• Four-pole configuration enables simultaneous protection across four conductors.
• Fast arc extinction supports reliable protection in demanding electrical systems.

Key Features

• ABB S800S high-performance MCB series.
• 1 A rated current.
• 4-pole configuration.
• Type D tripping characteristic.
• 50 kA ultimate short-circuit breaking capacity at 240/415 V AC.
• Suitable for voltages up to 400/690 V AC.
• Thermal tripping mechanism for overload protection.
• Electromechanical tripping mechanism for short-circuit protection.
• Current-limiting design with fast arc extinction.
• Cage terminal connection.
• Compact modular design for electrical distribution and control systems.
• Complies with IEC/EN 60898-1 and IEC/EN 60947-2.

High-Performance Circuit Protection for Electrical Systems

High-performance miniature circuit breakers such as the ABB S804S-D1 automatically disconnect protected circuits when excessive current results from an overload or short circuit. Thermal tripping responds to sustained overload conditions, while the electromechanical mechanism provides rapid operation during high-current short-circuit faults.

The ABB S800S range is designed for applications requiring substantially higher breaking performance than conventional miniature circuit breakers. The Type D characteristic of the S804S-D1 is particularly useful for circuits subject to higher short-duration inrush currents, while current-limiting operation and fast arc extinction help 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.