1SDA056018R1 ABB E2S2000 PR121/P-LSIG 2000A 3P Fixed Air Circuit Breaker

Why Choose the ABB E2S2000 PR121/P-LSIG 2000A 3P Fixed Air Circuit Breaker?

The ABB 1SDA056018R1 is a high-performance SACE Emax E2S air circuit breaker (ACB) designed for protection and switching in demanding low-voltage electrical distribution systems. Part of the ABB New Emax product group, this three-pole fixed circuit breaker combines a 2000 A rated current with the advanced PR121/P-LSIG electronic overcurrent release for comprehensive protection of industrial and commercial power networks.

The E2S2000 provides long-time, short-time, instantaneous and earth-fault protection through its LSIG trip functionality. This combination enables effective protection against overloads, short circuits and earth faults while supporting coordination and selectivity within complex low-voltage distribution systems.

With a rated uninterrupted current of 2000 A, a 690 V AC rated operational voltage and an ultimate short-circuit breaking capacity of 85 kA at 415 V AC, the E2S2000 is suited to high-current switchboards, main incomers and distribution feeders. This version features a three-pole fixed configuration with horizontal rear terminals for integration into electrical switchgear assemblies.

Key Advantages

• High-performance ABB SACE Emax air circuit breaker for low-voltage power distribution.
• 2000 A rated uninterrupted current for high-current electrical installations.
• Three-pole fixed configuration for industrial three-phase distribution systems.
• Advanced PR121/P-LSIG electronic overcurrent release.
• LSIG functionality provides long-time, short-time, instantaneous and earth-fault protection.
• High 85 kA breaking capacity at 415 V AC.
• 65 kA short-time withstand current for 1 s supports robust system coordination.
• Horizontal rear terminals facilitate integration into switchboards and power distribution assemblies.

Key Features

• ABB SACE Emax E2S2000 air circuit breaker.
• 2000 A rated uninterrupted current.
• Three-pole construction.
• Fixed circuit-breaker configuration.
• PR121/P-LSIG electronic overcurrent release.
• 690 V AC rated operational voltage.
• 85 kA Icu at 415 V AC.
• 65 kA Icu at 690 V AC.
• 65 kA Icw for 1 s.
• 50 kA Icw for 3 s.
• 1000 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• Horizontal rear terminal arrangement.
• Four auxiliary contacts with open/closed position indication.

Reliable Protection for Low-Voltage Power Distribution

Air circuit breakers such as the ABB Emax E2S2000 provide switching, isolation and comprehensive overcurrent protection at critical points within high-current low-voltage distribution systems. Their high short-circuit performance makes them particularly suitable for main incomers, distribution feeders and other applications where dependable interruption of high fault currents is essential.

The PR121/P-LSIG electronic trip unit provides long-time overload, short-time overcurrent, instantaneous short-circuit and earth-fault protection. Its protection functions help engineers coordinate circuit breakers throughout an electrical network, improving selectivity while helping isolate electrical faults and maintain supply to unaffected circuits.

Typical Applications

• Main incoming circuit breakers in low-voltage switchboards.
• Industrial power distribution systems.
• Commercial and infrastructure electrical installations.
• Manufacturing and process plants.
• Transformer and generator distribution systems.
• High-current distribution feeder protection.
• Power distribution and switchgear assemblies.
• Electrical networks requiring overload, short-circuit and earth-fault protection.