1SDA056017R1 ABB E2S2000 PR121/P-LSI 2000A 3P Fixed Air Circuit Breaker

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

The ABB 1SDA056017R1 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 PR121/P-LSI electronic overcurrent release for reliable protection of industrial and commercial power networks.

The E2S2000 provides long-time, short-time and instantaneous protection through its LSI trip functionality. This enables effective protection against overload and short-circuit conditions while providing the adjustable characteristics required for 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-LSI electronic overcurrent release.
• LSI functionality provides long-time, short-time and instantaneous 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-LSI 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.
• Horizontal rear terminal arrangement.
• Four auxiliary contacts with circuit-breaker open/closed position indication.
• Mechanical durability of 25,000 operating cycles.

Reliable Protection for Low-Voltage Power Distribution

Air circuit breakers such as the ABB Emax E2S2000 provide switching, isolation and 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-LSI electronic trip unit provides long-time overload, short-time overcurrent and instantaneous short-circuit protection. Its adjustable protection characteristics help engineers coordinate protection devices throughout an electrical network, improving selectivity and helping isolate faults while maintaining 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 protection systems.
• High-current distribution feeder protection.
• Power distribution and switchgear assemblies.
• Critical electrical infrastructure requiring selective overcurrent protection.