1SDA056557R1 ABB E3V800 PR122/P-LSIG 800A 4P Withdrawable Air Circuit Breaker

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

The ABB E3V800 PR122/P-LSIG, order code 1SDA056557R1, is a high-performance SACE Emax air circuit breaker (ACB) moving part designed for protection and switching in demanding low-voltage power distribution systems. As part of the ABB SACE Emax E3 series, this four-pole withdrawable breaker combines an 800 A rated current with the advanced PR122/P-LSIG electronic overcurrent release.

This E3V breaker is supplied as the moving part for a withdrawable four-pole installation, providing convenient removal from the associated fixed part for inspection, servicing and maintenance. The PR122/P-LSIG electronic release provides long-time, short-time, instantaneous and earth-fault protection functions, delivering comprehensive protection for critical electrical distribution systems.

With a rated permanent current of 800 A, rated voltage of 690 V AC and a rated ultimate short-circuit breaking capacity of 130 kA at 400 V AC, the E3V800 is engineered for installations with high prospective fault currents. Four auxiliary change-over contacts and open/closed position indication further support integration into switchboard monitoring and control systems.

Key Advantages

• High-performance ABB SACE Emax E3V air circuit breaker moving part for low-voltage distribution.
• 800 A rated current for high-current electrical systems.
• Four-pole withdrawable configuration supports convenient inspection and maintenance.
• Advanced PR122/P-LSIG R800 electronic overcurrent release.
• Provides long-time, short-time, instantaneous and earth-fault protection.
• High 130 kA ultimate short-circuit breaking capacity at 400 V AC.
• Four auxiliary change-over contacts support status monitoring and control.
• Open/closed circuit-breaker position indication for switchboard applications.

Key Features

• ABB SACE Emax E3V series.
• 800 A rated permanent current (Iu).
• Four-pole circuit-breaker configuration.
• Withdrawable moving part construction.
• PR122/P-LSIG R800 electronic overcurrent release.
• LSIG protection functions for long-time, short-time, instantaneous and earth-fault protection.
• 690 V AC rated voltage.
• 130 kA Icu at 400 V AC, 50 Hz.
• Adjustable overload protection for coordinated power-distribution protection.
• Adjustable instantaneous short-circuit protection.
• Four auxiliary change-over contacts.
• Integrated open/closed position indication.
• Motor drive can be fitted as an optional accessory.

Advanced LSIG Protection for Power Distribution

Air circuit breakers such as the ABB SACE Emax E3V provide switching and overcurrent protection for high-current low-voltage distribution systems. The E3V performance level offers high fault-current interruption capability, helping protect switchboards, cables, transformers and connected electrical equipment against overloads and severe short-circuit conditions.

The PR122/P-LSIG electronic release adds earth-fault protection to its long-time, short-time and instantaneous functions, providing comprehensive LSIG protection for coordinated electrical distribution. Combined with the withdrawable construction, high breaking capacity and auxiliary status contacts, the 1SDA056557R1 is well suited to critical installations where protection performance, monitoring and maintainability are important.

Typical Applications

• Industrial low-voltage switchboards and distribution systems.
• Main incoming and feeder circuit protection.
• Transformer secondary protection.
• Manufacturing and process plants.
• Commercial buildings and infrastructure power distribution.
• High-current installations requiring integrated earth-fault protection.