2CCF019938R0001 ABB S801S-K1 1A 1-Pole Type K 50kA High Performance MCB

Why Choose the ABB S801S-K1 High Performance MCB?

The ABB S801S-K1 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 compact modular construction with high breaking capacity for industrial, commercial and machinery applications.

This current-limiting circuit breaker provides thermal protection against sustained overloads together with electromagnetic protection against short-circuit faults. Its Type K tripping characteristic is particularly suited to circuits supplying inductive loads with elevated starting currents, helping provide dependable protection while reducing unwanted tripping during normal equipment start-up.

With a rated current of 1 A, a 1-pole configuration and a maximum short-circuit breaking capacity of 50 kA, the S801S-K1 provides robust protection for low-current circuits where high prospective fault currents may be present. Its modular design enables straightforward integration into electrical distribution boards, switchgear assemblies and industrial control panels.

Key Advantages

• High-performance 1-pole miniature circuit breaker for demanding electrical installations.
• 1 A rated current suitable for protecting low-current circuits and equipment.
• Type K tripping characteristic suited to inductive loads and circuits with elevated 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.
• 1 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 inductive loads and elevated 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-K1 automatically disconnect protected circuits when excessive current results from an overload or short circuit. Thermal tripping responds to sustained overload conditions, while electromagnetic tripping provides rapid operation during high-current short-circuit faults.

The ABB S800S range is designed for installations requiring higher breaking performance than conventional miniature circuit breakers. The Type K characteristic of the S801S-K1 makes it particularly suitable for appropriate inductive loads and circuits subject to elevated short-duration starting currents, while current-limiting operation helps reduce fault energy and protect downstream electrical equipment.

Typical Applications

• Industrial machinery and automation systems.
• Control and auxiliary circuits.
• Low-current industrial equipment.
• Electrical distribution boards and switchgear.
• Inductive loads with elevated starting currents.
• Motor-related control circuits where a Type K characteristic is appropriate.
• Commercial and industrial electrical installations.
• Applications requiring high short-circuit breaking capacity.