1SDA056988R1 ABB E6H 5000 PR122/P-LSI 5000A 4-Pole Fixed Air Circuit Breaker

Why Choose the ABB E6H 5000 PR122/P-LSI 5000A 4-Pole Fixed Air Circuit Breaker?

The ABB E6H 5000 PR122/P-LSI, order code 1SDA056988R1, is a high-capacity SACE Emax air circuit breaker designed for protection and switching in demanding low-voltage electrical distribution systems. Part of the ABB SACE Emax E6H series, this configuration combines a 5000 A rated current, four-pole construction and fixed execution with ABB's advanced PR122/P electronic protection technology.

The breaker is equipped with a PR122/P-LSI electronic overcurrent release, providing long-time, short-time and instantaneous protection functions for overload and short-circuit protection. The E6H performance class provides high short-circuit capability, making this breaker suitable for major industrial installations, power distribution centres and critical low-voltage switchboards.

With a rated current of 5000 A, a four-pole configuration and fixed construction with rear horizontal terminals, the E6H 5000 PR122/P-LSI is designed for high-current distribution applications. This configuration is rated for operation up to 690 V AC and is supplied with four auxiliary contacts for open/closed circuit-breaker position indication.

Key Advantages

• High-capacity 5000 A SACE Emax air circuit breaker for demanding power distribution systems.
• Four-pole construction for comprehensive switching and circuit protection.
• PR122/P-LSI electronic trip unit provides long-time, short-time and instantaneous protection.
• Fixed execution with rear horizontal terminals for permanent switchboard installation.
• 100 kA short-circuit breaking capability across a broad range of AC system voltages up to 690 V.
• Four auxiliary contacts provide convenient open/closed position indication.

Key Features

• ABB SACE Emax E6H series.
• 5000 A rated current.
• Four-pole configuration.
• Fixed circuit-breaker execution.
• Rear horizontal terminals.
• PR122/P electronic overcurrent release.
• LSI protection functions: long-time, short-time and instantaneous.
• 690 V AC rated operational voltage.
• 100 kA rated ultimate short-circuit breaking capacity at 400 V AC.
• Four auxiliary contacts with open/closed circuit-breaker position indication.

Reliable Circuit Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E6H protect major low-voltage distribution circuits against overloads and short circuits while providing dependable switching and isolation. The E6 frame is engineered for very high current applications, making this 5000 A configuration suitable for main switchboards, incoming supplies and other critical distribution points.

The PR122/P-LSI electronic release provides long-time protection against sustained overloads, short-time protection to support selective coordination and instantaneous protection against severe short-circuit currents. Combined with the E6H breaker's high short-circuit performance, these functions provide robust protection for demanding industrial and infrastructure power systems.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• Industrial power distribution and manufacturing plants.
• High-current incomer and feeder protection.
• Power generation and infrastructure installations.
• Commercial and industrial main distribution boards.
• High-capacity fixed switchgear requiring electronic LSI protection.