1SDA057148R1 ABB E6V6300 PR122/P-LSI 6300A 4P Fixed Air Circuit Breaker

Why Choose the ABB E6V6300 PR122/P-LSI 6300A 4P Fixed Air Circuit Breaker?

The ABB E6V6300 PR122/P-LSI, order code 1SDA057148R1, is a high-performance SACE Emax air circuit breaker (ACB) designed for protection and switching of high-current low-voltage electrical distribution systems. Part of the established ABB SACE Emax E6 series, this four-pole circuit breaker combines a 6300 A rated current with ABB's V short-circuit performance level for demanding industrial and infrastructure applications.

This fixed-version E6V circuit breaker is equipped with an ABB PR122/P-LSI electronic overcurrent release, providing long-time, short-time and instantaneous protection functions. The electronic trip unit enables effective protection against overload and short-circuit conditions while supporting selective coordination within complex low-voltage distribution networks.

With its four-pole configuration, fixed installation arrangement and rear horizontal terminals, the E6V6300 PR122/P-LSI is engineered for substantial switchboards and power distribution assemblies. The breaker has a rated operational voltage up to 690 V AC, a rated insulation voltage of 1000 V and a rated impulse withstand voltage of 12 kV.

Key Advantages

• High-capacity 6300 A SACE Emax air circuit breaker for demanding power distribution systems.
• Four-pole fixed configuration suitable for switching and protecting three-phase systems with neutral.
• Advanced PR122/P-LSI electronic overcurrent release.
• LSI protection provides long-time, short-time and instantaneous protection functions.
• V performance level provides high short-circuit breaking capability.
• Rated operational voltage up to 690 V AC.
• Rear horizontal terminals support integration into high-current switchboard assemblies.
• Designed for reliable protection and isolation of critical low-voltage distribution circuits.

Key Features

• ABB SACE Emax E6V air circuit breaker.
• 6300 A rated current.
• Four-pole (4P) configuration.
• Fixed circuit-breaker version.
• PR122/P-LSI electronic release.
• Long-time (L), short-time (S) and instantaneous (I) overcurrent protection.
• 690 V AC rated operational voltage.
• 1000 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• Rear horizontal terminal arrangement.
• High V-level short-circuit performance.
• Supplied with auxiliary contacts and open/closed position indication.

Reliable Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E6V are used to protect major feeders, incomers and distribution circuits against damaging overload and short-circuit currents. The E6V6300 combines a high continuous-current rating with substantial short-circuit interruption capability, making it suitable for installations where dependable protection and system availability are critical.

The integrated PR122/P-LSI electronic trip unit continuously monitors current and provides long-time, short-time and instantaneous protection. This combination enables the breaker to respond appropriately to different overcurrent conditions and assists engineers in achieving selective protection across large low-voltage distribution networks.

Typical Applications

• Main incomers for high-current low-voltage switchboards.
• Industrial power distribution systems.
• Large manufacturing and process plants.
• Power generation and utility distribution equipment.
• Commercial and infrastructure electrical installations.
• Transformer secondary protection.
• High-current feeder protection and isolation.
• Low-voltage power distribution centres and switchgear assemblies.