1SDA056980R1 ABB E6H5000 PR122/P-LSI 5000A 3-Pole Fixed Air Circuit Breaker

Why Choose the ABB E6H5000 PR122/P-LSI 5000A Air Circuit Breaker?

The ABB 1SDA056980R1, product designation E6H5000PR122/P-LSIIn=5000A3pF, is a high-current SACE Emax air circuit breaker (ACB) designed for protection and switching in demanding low-voltage electrical distribution systems. Part of the ABB SACE Emax E6H series, this three-pole fixed circuit breaker combines a 5000 A rated current with the PR122/P-LSI electronic overcurrent release.

The E6H5000 is engineered for major industrial, commercial and infrastructure power distribution applications where dependable overload and short-circuit protection is essential. Its PR122/P-LSI electronic trip unit provides long-time, short-time and instantaneous protection functions, helping protect cables, busbars, switchgear and connected equipment while supporting selective coordination within complex electrical distribution networks.

The E6H performance level provides a rated operational voltage of up to 690 V AC and high short-circuit performance, including 100 kA ultimate and service breaking capacity at 415 V AC. This version uses a three-pole fixed configuration, making it suitable for permanent installation within high-capacity low-voltage switchboards and power distribution assemblies.

Key Advantages

• High-current ABB SACE Emax E6H air circuit breaker for demanding low-voltage distribution systems.
• 5000 A rated current for major industrial and infrastructure installations.
• PR122/P-LSI electronic overcurrent release with comprehensive LSI protection.
• Long-time, short-time and instantaneous protection functions for overload and short-circuit conditions.
• 100 kA ultimate short-circuit breaking capacity at 415 V AC.
• Three-pole fixed configuration for robust integration into high-capacity switchboards.
• Short-time protection supports selective coordination between upstream and downstream protective devices.

Key Features

• ABB SACE Emax E6H series.
• 5000 A rated current.
• Three-pole configuration.
• Fixed circuit breaker.
• PR122/P-LSI electronic trip unit.
• Long-time overload protection.
• Short-time short-circuit protection.
• Instantaneous short-circuit protection.
• 690 V AC maximum rated operational voltage.
• 100 kA Icu at 415 V AC.
• 100 kA Ics at 415 V AC.
• 100 kA short-time withstand current for 1 s.
• 85 kA short-time withstand current for 3 s.
• High-performance H breaking-capacity class.

Reliable Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E6H5000 provide switching and protection for high-capacity low-voltage distribution networks. With a rated current of 5000 A and substantial short-circuit withstand capability, the E6H platform is particularly suited to main incoming supplies, large switchboards and industrial distribution systems where significant electrical loads and prospective fault currents must be safely managed.

The PR122/P-LSI electronic release provides three complementary protection functions. Long-time protection responds to sustained overload conditions, short-time protection enables controlled fault clearing and selective coordination, and instantaneous protection provides rapid interruption during severe short-circuit faults. Together, these functions provide adaptable protection for high-current electrical distribution systems where continuity, selectivity and equipment protection are important.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• High-current industrial power distribution systems.
• Large switchgear and busbar assemblies.
• Transformer secondary protection and distribution.
• Manufacturing and heavy process plants.
• Data centre and critical infrastructure power distribution.
• Commercial and utility infrastructure installations.
• High-capacity electrical systems requiring selective LSI protection.