2CCS862001R1487 ABB S802S-UCK20 High Performance MCB 50 kA 2P Type K 20 A

Why Choose the ABB S802S-UCK20 High Performance MCB?

The ABB S802S-UCK20 is a high-performance 2-pole miniature circuit breaker (MCB) designed to provide dependable overload and short-circuit protection in demanding electrical installations. Part of the ABB S800S high-performance circuit breaker range, this model combines a rated current of 20 A with a Type K tripping characteristic, making it well suited to appropriately designed circuits supplying equipment with elevated starting or inrush currents.

The S802S-UCK20 uses thermal and electromagnetic tripping mechanisms to protect conductors and connected equipment. Its thermal mechanism responds to sustained overload conditions, while the electromagnetic mechanism provides rapid interruption during short-circuit faults. With a high 50 kA short-circuit breaking capacity, the breaker is designed for installations where substantial prospective fault currents demand high-performance protection.

With its two-pole configuration and robust modular construction, the S802S-UCK20 is suitable for industrial machinery, automation equipment, control panels and power distribution systems. The Type K characteristic provides tolerance of short-duration starting currents while maintaining effective overload and short-circuit protection, making this model particularly useful for suitable motor and inductive-load circuits.

Key Advantages

• High-performance 2-pole miniature circuit breaker for demanding electrical installations.
• 20 A rated current for appropriately rated circuits and connected loads.
• Type K tripping characteristic suitable for circuits with elevated starting and inrush currents.
• High 50 kA short-circuit breaking capacity.
• Combined thermal and electromagnetic protection against overloads and short circuits.
• Current-limiting design helps reduce the effects of severe short-circuit faults.
• Two-pole construction provides linked switching and protection across two conductors.
• Designed for integration with the extensive ABB S800 accessory system.

Key Features

• ABB S800S high-performance MCB series.
• 2-pole configuration.
• 20 A rated current.
• Type K tripping characteristic.
• 50 kA short-circuit breaking capacity.
• Thermal trip mechanism for overload protection.
• Electromagnetic trip mechanism for rapid short-circuit protection.
• Current-limiting operation for demanding fault conditions.
• Suitable for appropriately designed circuits with elevated equipment starting currents.
• Modular construction for electrical distribution and control panels.
• Compatible with ABB S800 series auxiliary and signalling accessories.

Reliable Protection for High Starting Current Loads

The ABB S802S-UCK20 combines thermal overload protection with rapid electromagnetic short-circuit protection. During a sustained overload, the thermal trip mechanism disconnects the circuit to help protect conductors and connected equipment from excessive current, while the electromagnetic mechanism provides fast interruption when a severe short-circuit fault occurs.

Its Type K characteristic is particularly useful for appropriately designed circuits where connected equipment can draw substantial short-duration starting currents. Combined with the high breaking capacity and current-limiting performance of the ABB S800S platform, the S802S-UCK20 provides dependable protection for demanding machinery, automation and industrial power distribution applications.

Typical Applications

• Industrial machinery and automation systems.
• Motor and other inductive-load circuits.
• Circuits with elevated starting or inrush currents.
• Electrical control panels and switchboards.
• Industrial power distribution systems.
• Installations requiring high short-circuit breaking capacity.