2CCF019955R0001 ABB S803S-K1.6 High Performance MCB 50 kA 3P Type K 1.6 A

Why Choose the ABB S803S-K1.6 High Performance MCB?

The ABB S803S-K1.6 is a high-performance 3-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, machinery and equipment protection applications.

The S803S-K1.6 uses a thermal release for overload protection together with an electromechanical release for short-circuit protection. Its Type K characteristic is particularly suitable for circuits containing motors, transformers and other equipment that can produce functional peak or starting currents, helping to minimise unwanted tripping during normal operation.

With a rated current of 1.6 A, three protected poles and a rated ultimate short-circuit breaking capacity of 50 kA at 240/415 V AC, the S803S-K1.6 provides dependable protection for demanding three-phase electrical systems. The S800S range can also be used in systems with voltages up to 400/690 V AC and in DC applications, providing flexibility for industrial installations.

Key Advantages

• High-performance 3-pole miniature circuit breaker for demanding electrical installations.
• 1.6 A rated current with K tripping characteristic.
• Rated ultimate short-circuit breaking capacity of 50 kA at 240/415 V AC.
• Designed to protect circuits against both overload and short-circuit conditions.
• Type K characteristic is suitable for loads with functional peak or starting currents.
• Three-pole configuration enables simultaneous protection of three-phase circuits.
• Rapid arc extinction contributes to effective current limitation under fault conditions.
• Extensive S800 accessory options support flexible industrial installations.

Key Features

• ABB S800S high-performance MCB series.
• 3-pole configuration.
• 1.6 A rated current.
• Type K tripping characteristic.
• 50 kA rated ultimate short-circuit breaking capacity at 240/415 V AC.
• Suitable for systems with voltages up to 400/690 V AC.
• Thermal overload protection.
• Electromechanical short-circuit protection.
• High-performance current-limiting circuit breaker design.
• Cage terminal connection system.
• 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 high short-circuit breaking capacity and dependable overload protection are essential. The S803S-K1.6 combines thermal overload protection with rapid electromechanical short-circuit protection, helping safeguard cables, equipment and electrical distribution systems against potentially damaging overcurrent conditions.

Its K characteristic makes the breaker particularly useful for industrial loads where temporary functional peak currents can occur during normal operation. Combined with its three-pole construction and high breaking capacity, the S803S-K1.6 provides effective protection for three-phase machinery, transformer circuits, control equipment and demanding electrical distribution applications.

Typical Applications

• Industrial three-phase electrical circuits.
• Motor and machinery circuits.
• Transformer protection applications.
• Industrial control and auxiliary circuits.
• Electrical distribution and control panels.
• Manufacturing and automation equipment.
• Commercial and industrial installations requiring high short-circuit breaking capacity.