2CCF019940R0001 ABB S801S-K2 2A 1-Pole Type K 50kA High Performance MCB

Why Choose the ABB S801S-K2 High Performance MCB?

The ABB S801S-K2 is a high-performance 1-pole miniature circuit breaker (MCB) designed to provide reliable overload and short-circuit protection in demanding electrical systems. As part of the ABB S800S high-performance circuit breaker series, it combines current-limiting performance, compact modular construction and a high breaking capacity for commercial and industrial applications.

This circuit breaker uses thermal protection against sustained overloads together with electromagnetic protection against short-circuit faults. Its Type K tripping characteristic is designed for circuits such as motors, transformers and auxiliary circuits where functional peak currents can occur, helping to avoid nuisance tripping while maintaining effective overcurrent protection.

With a rated current of 2 A, a 1-pole configuration and a rated ultimate short-circuit breaking capacity of 50 kA at 240/415 V AC, the S801S-K2 provides robust protection where high prospective fault currents may be present. The S800S-K range also features an interchangeable cage terminal and is designed for integration into professional electrical distribution and control systems.

Key Advantages

• High-performance 1-pole miniature circuit breaker for demanding electrical installations.
• 2 A rated current for protecting low-current circuits and equipment.
• Type K tripping characteristic designed for circuits with functional peak and starting currents.
• Rated ultimate short-circuit breaking capacity of 50 kA at 240/415 V AC.
• Current-limiting operation helps reduce fault energy within protected circuits.
• Thermal and electromagnetic tripping provide overload and short-circuit protection.
• Suitable for applications such as motors, transformers and auxiliary circuits where appropriate.
• Interchangeable cage terminal supports practical installation and maintenance.

Key Features

• ABB S800S high-performance MCB series.
• 2 A rated current.
• 1-pole configuration.
• Type K tripping characteristic.
• 50 kA rated ultimate short-circuit breaking capacity at 240/415 V AC.
• Current-limiting circuit breaker design.
• Thermal overload protection.
• Electromagnetic short-circuit protection.
• Interchangeable cage terminal.
• Designed for commercial and industrial applications.
• Suitable for circuits requiring high breaking performance.

High-Performance Circuit Protection for Industrial Systems

High-performance miniature circuit breakers such as the ABB S801S-K2 automatically disconnect protected circuits when excessive current results from an overload or short circuit. A sensitive thermal trip responds to sustained overcurrent conditions, while the electromagnetic tripping mechanism provides rapid interruption during short-circuit faults.

The Type K characteristic is intended for applications where functional peak currents can occur during normal operation. This makes the S801S-K2 useful for appropriate motor, transformer and auxiliary circuits where unwanted tripping during short-duration current peaks needs to be minimised without compromising overload and short-circuit protection.

Typical Applications

• Industrial machinery and automation systems.
• Motor circuits where a Type K characteristic is appropriate.
• Transformer circuits.
• Control and auxiliary circuits.
• Electrical distribution boards and switchgear.
• Circuits subject to functional peak or starting currents.
• Commercial and industrial electrical installations.
• Applications requiring high short-circuit breaking capacity.