1SDA055815R1 ABB E2B1600 PR123/P-LSIG 1600A 3-Pole Withdrawable Air Circuit Breaker Moving Part

Why Choose the ABB E2B1600 PR123/P-LSIG 1600A 3-Pole Withdrawable Air Circuit Breaker?

The ABB 1SDA055815R1 is a high-performance SACE Emax E2B air circuit breaker (ACB) moving part designed for switching and protection in high-current low-voltage electrical distribution systems. Rated at 1600 A, this three-pole withdrawable circuit breaker moving part is equipped with the advanced PR123/P-LSIG R1600 electronic overcurrent release for comprehensive protection of industrial and commercial power networks.

As part of the ABB SACE Emax / New Emax range, the E2B1600 combines robust switching performance with sophisticated electronic protection. The PR123/P-LSIG release provides long-time, short-time, instantaneous and ground-fault protection functions, helping protect cables, busbars, transformers and connected electrical equipment against overloads, short circuits and earth faults.

The E2B1600 PR123/P-LSIG is a three-pole withdrawable moving part with a rated current of 1600 A. The E2B performance level provides a rated ultimate short-circuit breaking capacity of 42 kA, while the withdrawable construction supports maintenance and replacement within compatible SACE Emax switchgear assemblies.

Key Advantages

• High-capacity 1600 A SACE Emax air circuit breaker moving part for low-voltage power distribution.
• Advanced PR123/P-LSIG R1600 electronic overcurrent release.
• LSIG protection provides long-time, short-time, instantaneous and ground-fault protection.
• 42 kA E2B short-circuit breaking performance for demanding distribution systems.
• Three-pole withdrawable construction supports maintainable switchboard installations.
• Integrated ground-fault protection provides additional protection against earth-fault conditions.
• Supplied with four auxiliary contacts and circuit-breaker open/closed position indication.
• Designed for integration with the corresponding ABB SACE Emax fixed part.

Key Features

• ABB SACE Emax E2B1600 air circuit breaker moving part.
• 1600 A rated current.
• Three-pole configuration.
• Withdrawable moving-part construction.
• PR123/P-LSIG R1600 electronic overcurrent release.
• Long-time, short-time, instantaneous and ground-fault LSIG protection functions.
• 42 kA short-circuit breaking capacity.
• 12 kV rated impulse withstand voltage.
• Four auxiliary contacts.
• Circuit-breaker open/closed position indication.
• High mechanical and electrical endurance for demanding power distribution applications.
• Designed for compatible ABB SACE Emax withdrawable switchgear assemblies.

Advanced Protection for High-Current Power Distribution

Air circuit breakers such as the ABB E2B1600 provide switching, isolation and protection for high-current low-voltage distribution circuits. Withdrawable configurations are particularly suitable for critical switchboards because the circuit breaker moving part can be disconnected from its corresponding fixed part, supporting inspection, servicing and replacement within appropriately designed switchgear.

The PR123/P-LSIG electronic release provides comprehensive circuit protection through long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault functions. This combination supports selective protection and coordination throughout electrical distribution networks while providing additional protection against potentially damaging earth-fault conditions.

Typical Applications

• Industrial low-voltage switchboards and distribution panels.
• Main incoming circuit protection.
• High-current feeder protection.
• Withdrawable switchgear assemblies.
• Busbar and bus-coupler applications.
• Transformer secondary distribution systems.
• Manufacturing and process plants.
• Commercial, infrastructure and utility power distribution.