1SDA055919R1 ABB E2N1600 PR123/P-LSIG 1600A 4-Pole Withdrawable Air Circuit Breaker Moving Part

Why Choose the ABB E2N1600 PR123/P-LSIG 1600A 4-Pole Withdrawable Air Circuit Breaker?

The ABB 1SDA055919R1 is a high-performance SACE Emax E2N air circuit breaker (ACB) moving part designed for switching and protection in demanding low-voltage electrical distribution systems. Rated at 1600 A, this four-pole withdrawable circuit breaker moving part is equipped with the PR123/P-LSIG R1600 electronic overcurrent release for comprehensive circuit protection.

As part of the ABB SACE Emax / New Emax range, the E2N1600 combines high short-circuit performance with advanced electronic protection for industrial and commercial power distribution. 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 E2N1600 PR123/P-LSIG is a four-pole withdrawable moving part with a rated uninterrupted current of 1600 A and a rated operational voltage of 690 V AC. Its N performance level provides an ultimate and service short-circuit breaking capacity of 65 kA at 400 V AC and 55 kA at 690 V AC, while the withdrawable construction supports servicing and replacement within compatible SACE Emax switchgear assemblies.

Key Advantages

• High-capacity 1600 A SACE Emax air circuit breaker moving part.
• Four-pole configuration suitable for three-phase four-wire electrical distribution systems.
• Advanced PR123/P-LSIG R1600 electronic overcurrent release.
• LSIG protection provides long-time, short-time, instantaneous and ground-fault protection.
• 65 kA ultimate and service short-circuit breaking capacity at 400 V AC.
• 55 kA ultimate and service short-circuit breaking capacity at 690 V AC.
• 55 kA short-time withstand current for 1 s supports selective protection strategies.
• Withdrawable moving-part construction supports maintainable switchboard installations.

Key Features

• ABB SACE Emax E2N1600 air circuit breaker moving part.
• 1600 A rated uninterrupted current.
• Four-pole configuration.
• Withdrawable moving-part construction.
• PR123/P-LSIG R1600 electronic overcurrent release.
• Long-time, short-time, instantaneous and ground-fault LSIG protection functions.
• 690 V AC rated operational voltage.
• 1000 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 65 kA Icu/Ics at 400 V AC.
• 55 kA Icu/Ics at 690 V AC.
• Four auxiliary change-over contacts with open/closed position indication.

Advanced LSIG Protection for High-Fault-Level Power Distribution

Air circuit breakers such as the ABB E2N1600 provide switching, isolation and protection for high-current low-voltage distribution circuits. The four-pole configuration is well suited to three-phase four-wire systems, while the withdrawable architecture allows the circuit breaker moving part to be disconnected from its corresponding fixed part for inspection, servicing or replacement within appropriately designed switchgear.

The PR123/P-LSIG electronic release provides long-time protection against sustained overloads, short-time protection for selective short-circuit coordination, instantaneous protection against severe fault currents and ground-fault protection for earth-fault conditions. Combined with the E2N's high breaking capacity, these functions support comprehensive protection and coordination throughout demanding industrial and commercial electrical distribution networks.

Typical Applications

• Industrial low-voltage switchboards and distribution panels.
• Three-phase four-wire electrical distribution systems.
• Main incoming circuit protection.
• High-fault-level feeder protection.
• Withdrawable switchgear assemblies.
• Busbar and bus-coupler applications.
• Transformer secondary and generator distribution systems.
• Manufacturing, commercial and infrastructure installations.