2CCF019952R0001 ABB S802S-K5 High Performance MCB 50 kA 2P Type K 5 A

Why Choose the ABB S802S-K5 High Performance MCB?

The ABB S802S-K5 is a high-performance 2-pole miniature circuit breaker (MCB) designed to protect industrial and commercial electrical circuits against overloads and short circuits where a high breaking capacity is required. As part of the ABB S800S high-performance MCB series, it combines a K tripping characteristic with robust construction for demanding power distribution and equipment protection applications.

The S802S-K5 uses thermal protection against sustained overload conditions together with an electromechanical release for short-circuit protection. Its Type K characteristic is particularly suitable for circuits containing motors, transformers and auxiliary equipment, where functional peak currents can otherwise cause unwanted tripping.

With a rated current of 5 A, two protected poles and a rated ultimate short-circuit breaking capacity of 50 kA at 415 V AC, the S802S-K5 provides dependable circuit protection for industrial installations. It can be used at operating voltages up to 690 V AC, with breaking capacity dependent on the applied voltage.

Key Advantages

• High-performance 2-pole miniature circuit breaker for demanding electrical installations.
• 5 A rated current with K tripping characteristic.
• Rated ultimate short-circuit breaking capacity of 50 kA at 415 V AC.
• Designed to protect circuits against both overload and short-circuit conditions.
• K characteristic helps prevent nuisance tripping caused by functional peak currents.
• Suitable for protection of motors, transformers, auxiliary circuits, cables and lines.
• High breaking capacity makes the S800S series suitable for demanding industrial distribution systems.
• Accessory options allow integration with auxiliary and signalling functions.

Key Features

• ABB S800S high-performance MCB series.
• 2-pole configuration.
• 5 A rated current.
• Type K tripping characteristic.
• 50 kA Icu at 415 V AC.
• 30 kA Icu at 440 V AC.
• 15 kA Icu at 500 V AC.
• 6 kA Icu at 690 V AC.
• Thermal overload and electromechanical short-circuit release mechanisms.
• Interchangeable cage terminal design.
• Suitable for commercial and industrial applications.
• Designed in accordance with IEC/EN 60947-2.

High-Performance Circuit Protection for Industrial Systems

The ABB S800S range is engineered for circuits where conventional miniature circuit breakers may not provide sufficient short-circuit breaking capacity. The S802S-K5 combines thermal overload protection with fast electromechanical short-circuit protection, helping safeguard cables, equipment and electrical distribution systems under demanding fault conditions.

Its K characteristic is particularly useful for loads that can produce relatively high starting or peak currents during normal operation. This makes the S802S-K5 well suited to motor, transformer and auxiliary circuits while maintaining sensitive protection against sustained overcurrents.

Typical Applications

• Industrial motor circuits and machinery.
• Transformer protection circuits.
• Industrial control and auxiliary circuits.
• Electrical distribution and control panels.
• Manufacturing and automation equipment.
• Commercial electrical installations requiring high breaking capacity.
• Circuits requiring selective or back-up protection arrangements.