1SDA057035R1 ABB E6H6300PR122/P-LI 6300 A 4-Pole Withdrawable Air Circuit Breaker

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

The ABB E6H6300PR122/P-LI, order code 1SDA057035R1, is a high-capacity SACE Emax E6 H air circuit breaker moving part designed for protection, switching and isolation in demanding low-voltage power distribution systems. Rated at 6300 A, this four-pole withdrawable unit combines the E6 H high-performance breaker 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 very high current capacity and dependable fault protection are required. The Emax E6 platform extends the New Emax family to 6300 A, while the PR122/P-LI trip unit provides long-time overload and instantaneous short-circuit protection.

This configuration is a four-pole withdrawable moving part with a rated current of 6300 A. Its withdrawable construction is particularly suited to major switchboards where inspection, servicing and breaker replacement must be performed efficiently, while the PR122/P platform provides electronic protection and monitoring for critical distribution duties.

Key Advantages

• High-capacity 6300 A SACE Emax air circuit breaker for major power distribution systems.
• E6 H high-performance breaker platform for demanding 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 withdrawable configuration for serviceable high-current switchgear.
• Withdrawable construction facilitates inspection, maintenance and replacement within compatible Emax assemblies.
• Suitable for major incoming, feeder and high-current distribution applications.
• Part of ABB's proven SACE Emax E6 platform for ratings up to 6300 A.

Key Features

• ABB SACE Emax E6 H series.
• 6300 A rated current.
• Four-pole configuration.
• Withdrawable moving part execution.
• PR122/P-LI electronic overcurrent release.
• Long-time overload protection (L).
• Instantaneous short-circuit protection (I).
• Electronic trip-unit technology for accurate protection of high-current circuits.
• Serviceable draw-out construction for compatible SACE Emax switchgear.
• Designed for high-current industrial and infrastructure power distribution.

Advanced Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E6 protect high-current low-voltage distribution systems against abnormal current conditions while providing switching and isolation for major electrical circuits. The E6 frame is the largest frame in the original SACE Emax family, supporting rated currents up to 6300 A for substantial industrial and infrastructure power systems.

The PR122/P-LI electronic release provides long-time overload and instantaneous short-circuit protection. Combined with the withdrawable E6 H construction, it provides a practical solution for protecting conductors, busbars and connected equipment while supporting maintenance and operational flexibility in critical switchgear installations.

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 feeder applications.
• Commercial and infrastructure electrical installations.
• Critical power and large-scale electrical distribution networks.