1SDA056033R1 ABB E2S2000 PR121/P-LSI 2000A 3P Withdrawable Air Circuit Breaker

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

The ABB 1SDA056033R1 is a high-performance SACE Emax E2S air circuit breaker (ACB) moving part designed for protection and switching in demanding low-voltage electrical distribution systems. As part of the ABB New Emax product group, this three-pole withdrawable circuit breaker combines a 2000 A rated current with the PR121/P-LSI electronic overcurrent release for dependable protection of industrial and commercial power networks.

The E2S2000 provides long-time, short-time and instantaneous protection through its LSI trip functionality. The electronic release offers adjustable protection characteristics for effective coordination and selectivity, helping protect conductors and equipment against overload and short-circuit conditions throughout 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 suitable for high-current switchboards, main incomers and distribution feeders. This version is the three-pole withdrawable moving part, allowing the breaker to be removed from a compatible fixed part for inspection, servicing or replacement.

Key Advantages

• High-performance ABB SACE Emax air circuit breaker moving part for low-voltage power distribution.
• 2000 A rated uninterrupted current for high-current electrical installations.
• Three-pole withdrawable 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.
• Withdrawable construction simplifies inspection, maintenance and replacement within compatible switchgear.

Key Features

• ABB SACE Emax E2S2000 air circuit breaker moving part.
• 2000 A rated uninterrupted current.
• Three-pole construction.
• Withdrawable 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.
• 1000 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• Four auxiliary change-over contacts.
• Circuit-breaker open/closed position indication.

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. Combined with the withdrawable Emax design, this enables reliable electrical protection while allowing the breaker moving part to be removed from compatible switchgear for maintenance, testing or replacement.

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.
• Withdrawable power distribution and switchgear assemblies.
• Electrical networks requiring coordinated overload and short-circuit protection.