1SDA056669R1 ABB E3V 2500 PR122/P-LSIG 2500 A 4-Pole Air Circuit Breaker

Why Choose the ABB 1SDA056669R1 E3V 2500 Air Circuit Breaker?

The ABB 1SDA056669R1 is a high-performance SACE Emax E3V air circuit breaker designed for protection and switching in demanding low-voltage electrical distribution systems. Configured as an E3V 2500 PR122/P-LSIG, this four-pole fixed circuit breaker combines a rated current of 2500 A with ABB's PR122/P electronic overcurrent release.

As part of the ABB SACE Emax series, the E3V 2500 is engineered for installations requiring high short-circuit performance, selective protection and dependable operation. The PR122/P-LSIG release provides long-time, short-time, instantaneous and ground-fault protection functions, helping protect electrical installations against overloads, short circuits and earth faults while supporting coordinated protection throughout the distribution system.

This configuration is a four-pole fixed air circuit breaker designed for high-current distribution applications. The E3V performance level provides a 125 kA short-circuit current rating at 480 V and a short-time withstand current of 85 kA, making it suitable for high-fault-level industrial switchboards and critical commercial power distribution systems.

Key Advantages

• High-performance ABB SACE Emax E3V air circuit breaker for demanding low-voltage distribution systems.
• 2500 A rated current for high-current industrial and commercial power distribution.
• PR122/P-LSIG R2500 electronic trip unit providing comprehensive adjustable circuit protection.
• LSIG protection provides long-time, short-time, instantaneous and ground-fault protection functions.
• Four-pole configuration supports applications requiring switching and isolation of the neutral conductor.
• 125 kA short-circuit current rating at 480 V for demanding high-fault-level applications.
• 85 kA short-time withstand current supports selective coordination within complex distribution networks.
• Fixed construction provides robust permanent installation within compatible low-voltage switchboards.

Key Features

• ABB SACE Emax E3V 2500 series.
• 2500 A rated current.
• Four-pole configuration.
• Fixed circuit breaker construction.
• PR122/P-LSIG R2500 electronic overcurrent release.
• LSIG protection functions for long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault protection.
• 125 kA short-circuit current rating at 480 V.
• 85 kA short-time withstand current.
• Integrated ground-fault protection through the LSIG electronic release.
• Four-pole design suitable for three-phase and neutral distribution arrangements.
• Electronic protection supports selective coordination within complex electrical distribution systems.

Comprehensive Four-Pole Protection for High-Current Distribution

Air circuit breakers such as the ABB SACE Emax E3V provide switching and protection for low-voltage electrical distribution systems where substantial prospective fault currents can occur. The E3V 2500 combines a 2500 A current rating with high short-circuit performance, helping protect switchboards, busbars, cables and connected equipment against damaging overload, short-circuit and ground-fault conditions.

The PR122/P-LSIG electronic trip unit combines long-time overload, short-time selective short-circuit, instantaneous short-circuit and ground-fault protection. Together with the four-pole construction and high short-time withstand capability, these functions make the 1SDA056669R1 well suited to high-current three-phase distribution systems where neutral switching, selective coordination and comprehensive electronic protection are required.

Typical Applications

• Main incoming circuit protection in low-voltage switchboards.
• Industrial power distribution systems.
• High-current distribution feeders.
• High-fault-level electrical distribution systems.
• Manufacturing and process plant electrical systems.
• Commercial and infrastructure power distribution.
• Generator and transformer distribution systems.
• Three-phase systems requiring four-pole switching and neutral isolation.
• Critical circuits requiring comprehensive LSIG electronic protection.
• Fixed switchgear requiring high-performance 2500 A circuit protection.