1SDA057019R1 ABB E6H6300PR122/P-LI 6300 A 4-Pole Fixed Air Circuit Breaker

Why Choose the ABB E6H6300PR122/P-LI 6300 A Air Circuit Breaker?

The ABB E6H6300PR122/P-LI, order code 1SDA057019R1, is a high-capacity SACE Emax E6 H air circuit breaker designed for protection, switching and isolation in demanding low-voltage power distribution systems. Rated at 6300 A, this four-pole fixed breaker combines the robust E6 H platform with ABB's advanced PR122/P-LI electronic overcurrent release.

As part of the ABB SACE Emax range, the breaker is engineered for industrial switchboards, power distribution centres and critical infrastructure where dependable high-current protection is essential. The PR122/P electronic trip unit provides LI protection functions covering long-time overload and instantaneous short-circuit protection, with the advanced measurement and monitoring capabilities of the PR122/P platform.

This configuration is a four-pole fixed circuit breaker with rear horizontal terminals and a rated current of 6300 A. It is equipped with the PR122/P-LI R6300 overcurrent release, four auxiliary contacts and open/closed breaker position indication, providing a comprehensive solution for major low-voltage distribution installations.

Key Advantages

• High-capacity 6300 A SACE Emax air circuit breaker for major power distribution systems.
• E6 H high-performance breaker platform for demanding industrial low-voltage installations.
• Advanced PR122/P-LI electronic overcurrent release for dependable circuit protection.
• LI protection functions provide long-time overload and instantaneous short-circuit protection.
• Four-pole fixed configuration for high-current switchboard installations.
• Rear horizontal terminals provide a practical connection arrangement for busbars and switchgear.
• Fitted with four auxiliary contacts and open/closed breaker position indication.
• Designed for major incoming, feeder and high-current distribution duties.

Key Features

• ABB SACE Emax E6 H series.
• 6300 A rated current.
• Four-pole configuration.
• Fixed execution.
• Rear horizontal terminals.
• PR122/P-LI R6300 electronic overcurrent release.
• Long-time overload protection (L).
• Instantaneous short-circuit protection (I).
• 690 V AC rated operational voltage.
• Four auxiliary contacts for breaker status signalling.
• Open/closed breaker position indication.
• 12,000-cycle mechanical durability.

Advanced Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E6 are designed to protect high-current low-voltage distribution systems against overloads and short-circuit faults. The E6 frame provides the substantial current-carrying capacity required for major incoming feeders, main distribution boards and critical electrical infrastructure where reliable switching and fault interruption are essential.

The PR122/P-LI electronic release provides long-time overload and instantaneous short-circuit protection. Combined with the E6 H breaker's high-performance construction, this provides dependable protection for conductors, busbars and connected equipment in demanding industrial and infrastructure power distribution systems.

Typical Applications

• Main incoming protection for high-current low-voltage switchboards.
• Large industrial power distribution systems.
• Manufacturing and process plant electrical infrastructure.
• Power distribution centres and main switchboards.
• Transformer secondary and high-current distribution applications.
• Commercial and infrastructure electrical installations.
• Critical power and large-scale electrical distribution networks.