1SDA056530R1 ABB E3V 800 PR121/P-LSIG 800 A Air Circuit Breaker

Why Choose the ABB 1SDA056530R1 E3V 800 Air Circuit Breaker?

The ABB 1SDA056530R1 is a high-performance SACE Emax E3V air circuit breaker (ACB) designed for protection and switching in demanding low-voltage electrical distribution systems. Configured as an E3V 800 PR121/P-LSIG, this three-pole fixed circuit breaker combines a rated uninterrupted current of 800 A with ABB's PR121/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 dependable operation. The PR121/P-LSIG release provides long-time, short-time, instantaneous and ground-fault protection functions, helping safeguard electrical installations against overloads, short circuits and earth faults.

This configuration is a three-pole fixed circuit breaker with horizontal rear terminals and a rated operational voltage of 690 V AC. The E3V performance level provides an ultimate short-circuit breaking capacity of 130 kA at 380–440 V AC and 100 kA at 500–690 V AC, making it suitable for high-fault-level industrial switchboards and critical power distribution systems.

Key Advantages

• High-performance ABB SACE Emax E3V air circuit breaker for demanding low-voltage distribution systems.
• 800 A rated uninterrupted current for industrial and commercial power distribution.
• PR121/P-LSIG electronic trip unit providing comprehensive adjustable circuit protection.
• High 130 kA ultimate short-circuit breaking capacity at 380–440 V AC.
• LSIG protection covers long-time, short-time, instantaneous and ground-fault functions.
• Fixed three-pole construction with horizontal rear terminals for switchboard installation.
• Fitted with four auxiliary change-over contacts and circuit breaker open/closed position indication.

Key Features

• ABB SACE Emax E3V 800 series.
• 800 A rated uninterrupted current.
• Three-pole configuration.
• Fixed circuit breaker construction.
• Horizontal rear terminals.
• PR121/P-LSIG electronic overcurrent release.
• LSIG protection functions for overload, selective short-circuit, instantaneous short-circuit and ground-fault protection.
• 690 V AC rated operational voltage.
• 130 kA Icu at 220–440 V AC.
• 100 kA Icu at 500–690 V AC.
• 85 kA short-time withstand current for 1 s.
• Integrated earth-fault protection.

Comprehensive Protection for High-Performance Power 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 performance level offers high short-circuit interruption capability, helping protect switchboards, busbars, cables and connected equipment against damaging electrical faults.

The PR121/P-LSIG electronic trip unit combines long-time overload, short-time selective short-circuit, instantaneous short-circuit and ground-fault protection. These functions provide comprehensive protection for critical distribution circuits while supporting coordination with other protective devices throughout the electrical installation.

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.
• Fixed switchgear requiring comprehensive LSIG electronic protection.