2CCS863001R0061 ABB S803S-D6 6A 3-Pole Type D 50kA MCB

Why Choose the ABB S803S-D6 High-Performance MCB?

The ABB S803S-D6 is a high-performance 3-pole miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short circuits in demanding industrial and commercial installations. Part of the ABB S800S high-performance circuit breaker series, it combines a 6 A rated current, D tripping characteristic and high breaking capacity for reliable protection of three-phase circuits.

With a rated ultimate short-circuit breaking capacity of 50 kA, the S803S-D6 is suited to installations with high prospective fault currents. Its Type D characteristic tolerates substantial starting and inrush currents before instantaneous magnetic tripping, making it particularly useful for equipment such as transformers, motors, solenoids and other inductive loads.

The S803S-D6 combines thermal overload protection with electromagnetic short-circuit protection in a compact modular design. Its 3-pole configuration enables simultaneous protection and switching of three-phase circuits, while DIN-rail mounting supports straightforward integration into industrial control panels and electrical distribution assemblies.

Key Advantages

• High-performance 3-pole miniature circuit breaker for demanding electrical installations.
• 6 A rated current with Type D tripping characteristic.
• High 50 kA ultimate short-circuit breaking capacity.
• Provides combined overload and short-circuit protection.
• Type D characteristic accommodates high starting and inrush currents.
• Suitable for three-phase industrial equipment and inductive loads.
• Current-limiting design helps reduce the effects of short-circuit faults.
• Compact DIN-rail format for control panels and distribution assemblies.

Key Features

• ABB S800S high-performance MCB series.
• 3-pole configuration.
• 6 A rated current.
• Type D tripping characteristic.
• 50 kA rated ultimate short-circuit breaking capacity (Icu).
• Thermal tripping mechanism for overload protection.
• Electromagnetic tripping mechanism for short-circuit protection.
• High-performance current-limiting circuit breaker design.
• Suitable for circuits with substantial starting or inrush currents.
• DIN-rail mounting for modular electrical installations.
• Designed in accordance with IEC/EN 60947-2.

High-Performance Protection for High-Inrush Loads

The ABB S800S range is engineered for electrical systems where high prospective short-circuit currents require greater interruption capability than conventional miniature circuit breakers. The S803S-D6 combines thermal overload protection with rapid electromagnetic fault interruption to help safeguard conductors, equipment and downstream circuits.

The Type D characteristic is intended for circuits where substantial temporary inrush currents occur during normal operation. This makes the S803S-D6 particularly suitable for transformers, motors and other inductive equipment where a more tolerant instantaneous tripping characteristic can help prevent nuisance operation during energisation.

Typical Applications

• Industrial three-phase control systems.
• Transformer and power-supply circuits.
• Motor and machinery circuits.
• Solenoids and other inductive loads.
• Industrial automation equipment.
• Commercial and industrial distribution panels.
• Circuits with high starting or inrush currents.
• Installations with high prospective short-circuit currents.