1SDA057149R1 ABB E6V6300 PR122/P-LSIG 6300A 4P Fixed Air Circuit Breaker

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

The ABB E6V6300 PR122/P-LSIG, order code 1SDA057149R1, 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 breaker combines a 6300 A rated current with the high short-circuit performance of the E6V platform.

This fixed-version circuit breaker is equipped with an ABB PR122/P-LSIG electronic overcurrent release, providing long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault protection. The four protection functions allow comprehensive protection of critical distribution circuits while supporting selective coordination in large industrial and infrastructure power systems.

With its four-pole configuration, fixed installation and rear horizontal terminals, the E6V6300 PR122/P-LSIG is engineered for integration into substantial low-voltage switchboards. It has a rated current of 6300 A, a rated voltage of 690 V and a rated ultimate short-circuit breaking capacity of 150 kA at 400 V AC.

Key Advantages

• High-capacity 6300 A SACE Emax air circuit breaker for major power distribution systems.
• Four-pole fixed configuration suitable for three-phase systems with neutral switching.
• Advanced PR122/P-LSIG electronic overcurrent release.
• LSIG protection provides long-time, short-time, instantaneous and ground-fault protection functions.
• 150 kA ultimate short-circuit breaking capacity at 400 V AC.
• Rated voltage of 690 V for low-voltage industrial distribution.
• Rear horizontal terminals support integration into high-current switchboard assemblies.
• Supplied with four auxiliary change-over contacts and circuit-breaker open/closed position indication.

Key Features

• ABB SACE Emax E6V air circuit breaker.
• 6300 A rated uninterrupted current.
• Four-pole (4P) configuration.
• Fixed installation version.
• PR122/P-LSIG electronic protection release.
• Long-time (L), short-time (S), instantaneous (I) and ground-fault (G) protection.
• 690 V rated voltage.
• 150 kA Icu at 400 V, 50 Hz.
• Adjustable overload protection for system coordination.
• Integrated earth-fault protection.
• Rear horizontal main terminals.
• Four auxiliary change-over contacts for status signalling.
• Motor operating mechanism can be fitted as an option.

Reliable LSIG Protection for High-Current Power Distribution

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

The PR122/P-LSIG electronic release provides four principal protection functions. Long-time protection responds to sustained overloads, short-time and instantaneous functions protect against short-circuit currents, while the integrated ground-fault function provides additional protection against earth-fault conditions within the distribution system.

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.