1SDA056034R1 ABB E2S2000 PR121/P-LSIG 2000A 3P Withdrawable Air Circuit Breaker

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

The ABB 1SDA056034R1 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. Part of the ABB New Emax product group, this three-pole withdrawable 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. These protection functions help safeguard electrical equipment and conductors against overloads, short circuits and earth faults while supporting effective coordination and selectivity 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 a three-pole withdrawable moving part, allowing removal from a compatible Emax fixed part for inspection, testing, maintenance 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-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.
• Withdrawable construction facilitates maintenance, testing 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-LSIG electronic overcurrent release.
• Integrated earth-fault protection as part of the LSIG protection functions.
• 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.

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. Combined with the withdrawable Emax design, this provides comprehensive electrical protection while allowing the circuit-breaker moving part to be removed from compatible switchgear for inspection, testing, servicing 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 overload, short-circuit and earth-fault protection.