1SDA056551R1 ABB E3V 800 PR123/P-LSIG 800 A Air Circuit Breaker

Why Choose the ABB 1SDA056551R1 E3V 800 Air Circuit Breaker?

The ABB 1SDA056551R1 is a high-performance SACE Emax E3V air circuit breaker moving part designed for protection, switching and advanced monitoring in demanding low-voltage electrical distribution systems. Configured as an E3V 800 PR123/P-LSIG, this three-pole withdrawable unit combines a rated current of 800 A with ABB's advanced PR123/P electronic overcurrent release and comprehensive LSIG protection.

As part of the ABB SACE Emax series, the E3V 800 is engineered for installations requiring high short-circuit performance, selective protection and sophisticated electrical measurement capabilities. The PR123/P-LSIG release provides long-time, short-time, instantaneous and ground-fault protection functions, while the PR123/P platform provides advanced measurement and protection functionality for critical power distribution applications.

This configuration is a three-pole withdrawable moving part rated at 800 A. The E3V performance level is designed for high-fault-level electrical systems, while the withdrawable construction allows the breaker moving part to be isolated and removed from its compatible fixed part for inspection, servicing or replacement.

Key Advantages

• High-performance ABB SACE Emax E3V air circuit breaker moving part for demanding low-voltage distribution systems.
• 800 A rated current for industrial and commercial power distribution.
• PR123/P-LSIG electronic trip unit for advanced protection and electrical monitoring.
• LSIG protection covers long-time, short-time, instantaneous and ground-fault functions.
• Advanced PR123/P release provides measurement functions for monitoring electrical system performance.
• Withdrawable construction supports convenient isolation, inspection and maintenance within compatible SACE Emax switchgear.
• Fitted with four auxiliary contacts and circuit breaker open/closed position indication.

Key Features

• ABB SACE Emax E3V 800 series.
• 800 A rated current.
• Three-pole configuration.
• Withdrawable moving-part construction.
• PR123/P-LSIG R800 electronic overcurrent release.
• LSIG protection functions for overload, selective short-circuit, instantaneous short-circuit and ground-fault protection.
• Advanced electrical measurement functionality.
• Integrated ground-fault protection.
• Four auxiliary contacts.
• Open/closed circuit breaker position indication.
• Designed for installation in compatible ABB SACE Emax fixed parts and switchgear assemblies.

Advanced Protection for Critical Power Distribution

Air circuit breakers such as the ABB SACE Emax E3V provide switching and protection for low-voltage electrical distribution systems where high prospective fault currents and continuity of supply are important considerations. The E3V performance level is designed for demanding distribution networks, helping protect switchboards, busbars, cables and connected equipment against potentially damaging electrical faults.

The PR123/P-LSIG electronic trip unit combines long-time overload, short-time selective short-circuit, instantaneous short-circuit and ground-fault protection with advanced measurement capabilities. These functions make the 1SDA056551R1 particularly suitable for critical distribution circuits where comprehensive protection, system monitoring and coordinated operation are required.

Typical Applications

• Main incoming circuit protection in low-voltage switchboards.
• Industrial power distribution systems.
• High-fault-level distribution feeders.
• Manufacturing and process plant electrical systems.
• Commercial and infrastructure power distribution.
• Generator and transformer distribution systems.
• Critical power systems requiring advanced monitoring and LSIG protection.
• Withdrawable switchgear requiring maintainable high-performance circuit protection.