2CCF019942R0001 ABB S801S-K3 3A 1-Pole Type K 50kA High Performance MCB

Why Choose the ABB S801S-K3 High Performance MCB?

The ABB S801S-K3 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 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 with functional peak or starting currents, making it suitable for appropriate motor, transformer, control and other inductive-load applications while helping to reduce unwanted tripping during normal equipment start-up.

With a rated current of 3 A, a 1-pole configuration and a maximum short-circuit breaking capacity of 50 kA, the S801S-K3 provides robust protection for low-current circuits where high prospective fault currents may be present. Its modular design supports integration into electrical distribution boards, switchgear assemblies, machinery and industrial control panels.

Key Advantages

• High-performance 1-pole miniature circuit breaker for demanding electrical installations.
• 3 A rated current for protecting low-current circuits and equipment.
• Type K tripping characteristic suited to circuits with functional peak and starting currents.
• High short-circuit breaking capacity of up to 50 kA.
• Current-limiting operation helps reduce fault energy within protected circuits.
• Thermal and electromagnetic tripping provide overload and short-circuit protection.
• Single-pole configuration provides compact protection for individual circuit conductors.
• Suitable for machinery, control and industrial electrical applications.

Key Features

• ABB S800S high-performance MCB series.
• 3 A rated current.
• 1-pole configuration.
• Type K tripping characteristic.
• 50 kA maximum short-circuit breaking capacity.
• Thermal overload protection.
• Electromagnetic short-circuit protection.
• Current-limiting circuit breaker design.
• Designed for circuits with functional peak or starting currents.
• Compact modular format for electrical distribution and control systems.
• Suitable for demanding industrial circuit protection applications.

High-Performance Circuit Protection for Industrial Systems

High-performance miniature circuit breakers such as the ABB S801S-K3 automatically disconnect protected circuits when excessive current results from an overload or short circuit. Thermal tripping responds to sustained overcurrent conditions, while electromagnetic tripping provides rapid interruption during high-current short-circuit faults.

The Type K characteristic is intended for applications where functional peak currents can occur during normal operation. This makes the S801S-K3 useful for appropriate motor, transformer, machinery and auxiliary circuits where short-duration starting currents need to be accommodated while maintaining effective overload and short-circuit protection.

Typical Applications

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