1SDA056987R1 ABB E6H 5000 PR122/P-LI 5000A 4P Fixed Air Circuit Breaker

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

The ABB 1SDA056987R1 is a high-performance SACE Emax E6H air circuit breaker designed for protection and switching in high-current low-voltage electrical distribution systems. Rated at 5000 A, this four-pole fixed breaker incorporates an ABB PR122/P-LI R5000 electronic overcurrent release providing long-time overload and instantaneous short-circuit protection.

As part of the proven ABB SACE Emax series, the E6H 5000 is engineered for demanding industrial, infrastructure and commercial power distribution applications. The PR122/P electronic trip unit combines dependable circuit protection with the capabilities required for modern high-current switchboards, while the fixed construction provides a robust solution for permanent installations.

This version features a four-pole configuration, rear horizontal terminals and a rated operational voltage of 690 V AC. With an ultimate and service short-circuit breaking capacity of 100 kA up to 690 V AC, the E6H 5000 is well suited to major incoming, transformer and distribution circuits with substantial prospective fault currents.

Key Advantages

• High-current 5000 A SACE Emax air circuit breaker for major power distribution systems.
• Four-pole configuration for three-phase systems requiring neutral switching.
• Advanced PR122/P-LI R5000 electronic overcurrent release.
• LI protection provides long-time overload and instantaneous short-circuit protection.
• 100 kA ultimate and service breaking capacity up to 690 V AC.
• 100 kA short-time withstand current for 1 s.
• Fixed construction with rear horizontal terminals for robust switchboard integration.
• Four auxiliary contacts and open/closed position indication support signalling and control systems.

Key Features

• ABB SACE Emax E6H air circuit breaker platform.
• 5000 A rated uninterrupted current.
• Four-pole configuration.
• Fixed execution.
• Rear horizontal terminals.
• PR122/P-LI R5000 electronic overcurrent release.
• Long-time overload protection.
• Instantaneous short-circuit protection.
• 690 V AC rated operational voltage.
• 100 kA breaking capacity up to 690 V AC.
• Four auxiliary contacts.
• Open/closed circuit-breaker position indication.

Reliable Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E6H provide switching and overcurrent protection for major low-voltage distribution circuits. The electronic trip unit continuously monitors current and initiates circuit-breaker operation when configured overload or instantaneous short-circuit thresholds are exceeded, helping protect cables, busbars, transformers and connected electrical equipment.

The PR122/P-LI release combines long-time overload and instantaneous short-circuit protection in an advanced electronic trip unit. Together with the E6H frame's high short-circuit performance and four-pole construction, it provides dependable protection for large industrial, commercial and infrastructure power distribution networks.

Typical Applications

• Main incoming circuit breakers in high-current low-voltage switchboards.
• Industrial power distribution systems.
• Four-pole feeder and neutral switching applications.
• Transformer secondary protection and switching.
• Manufacturing and process plants.
• Commercial and infrastructure power distribution.
• Generator and utility distribution systems.
• Fixed switchboard installations with high prospective fault currents.