1SDA056541R1 ABB E3V800 PR122/P-LSIG 800A 4-Pole Fixed Air Circuit Breaker

Why Choose the ABB E3V800 PR122/P-LSIG 800A 4-Pole Air Circuit Breaker?

The ABB 1SDA056541R1 is a high-performance SACE Emax E3V air circuit breaker designed for protection and switching in demanding low-voltage electrical distribution systems. Rated at 800 A, this four-pole fixed circuit breaker incorporates ABB’s PR122/P-LSIG R800 electronic overcurrent release for comprehensive protection of industrial, commercial and infrastructure power networks.

As part of the ABB SACE Emax range, the E3V800 combines very high short-circuit performance with advanced electronic protection. The PR122/P-LSIG trip unit provides long-time, short-time, instantaneous and earth-fault protection functions, helping protect electrical installations against overloads, short circuits and earth faults while supporting selective protection and coordination within low-voltage distribution systems.

The E3V800 PR122/P-LSIG has a rated uninterrupted current of 800 A, a rated operational voltage of 690 V AC and an ultimate short-circuit breaking capacity of 130 kA at 400 V AC. This version is supplied as a four-pole fixed circuit breaker with rear horizontal terminals, four auxiliary contacts and circuit-breaker open/closed position indication for integration into demanding switchboard applications.

Key Advantages

• High-performance ABB SACE Emax E3V air circuit breaker for demanding low-voltage power distribution.
• 800 A rated current for industrial, commercial and infrastructure installations.
• Four-pole construction for applications requiring switching of all four conductors.
• PR122/P-LSIG R800 electronic overcurrent release for comprehensive circuit protection.
• LSIG protection provides long-time, short-time, instantaneous and earth-fault protection.
• 130 kA ultimate short-circuit breaking capacity at 400 V AC for demanding fault levels.
• Fixed construction with rear horizontal terminals for robust switchboard integration.

Key Features

• ABB SACE Emax E3V800 air circuit breaker.
• 800 A rated uninterrupted current.
• Four-pole fixed configuration.
• PR122/P-LSIG R800 electronic overcurrent release.
• Long-time overload protection.
• Short-time short-circuit protection.
• Instantaneous short-circuit protection.
• Integrated earth-fault protection.
• 690 V AC rated operational voltage.
• 130 kA Icu at 400 V AC.
• 100 kA Ics at 400 V AC.
• 85 kA short-time withstand current for 1 s.
• 12 kV rated impulse withstand voltage.
• Rear horizontal main terminals.
• Four auxiliary contacts with circuit-breaker open/closed position indication.

High-Performance LSIG Protection for Low-Voltage Distribution

Air circuit breakers such as the ABB SACE Emax E3V800 provide switching, isolation and protection for important low-voltage distribution circuits. The four-pole configuration enables switching of three phase conductors and the neutral, making it suitable for electrical systems where complete four-pole isolation is required.

The PR122/P-LSIG electronic trip unit provides long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection. Combined with the E3V frame’s 130 kA ultimate breaking capacity at 400 V AC and fixed rear-horizontal-terminal construction, this makes the 1SDA056541R1 particularly suitable for main incomers, feeders and critical distribution circuits requiring comprehensive electronic protection and high fault-interruption performance.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Main incomer and feeder circuit protection.
• Three-phase systems requiring neutral switching.
• Manufacturing and process plants.
• Commercial and infrastructure electrical installations.
• Power distribution centres and fixed switchgear assemblies.