1SDA056679R1 ABB E3V2500 PR123/P-LSIG 2500A 3P Withdrawable Air Circuit Breaker

Why Choose the ABB E3V2500 PR123/P-LSIG 2500A 3P Withdrawable Air Circuit Breaker?

The ABB E3V2500 PR123/P-LSIG, order code 1SDA056679R1, is a high-performance SACE Emax air circuit breaker (ACB) moving part designed for advanced switching and comprehensive protection in demanding low-voltage power distribution systems. Part of the ABB SACE Emax E3 series, this three-pole withdrawable breaker combines a 2500 A rated uninterrupted current with the advanced PR123/P-LSIG R2500 electronic overcurrent release.

The E3V2500 is supplied as the moving part for a withdrawable three-pole installation, enabling convenient removal from its associated fixed part for inspection, servicing and maintenance. The PR123/P-LSIG release provides long-time, short-time, instantaneous and earth-fault protection, helping protect busbars, cables, transformers and connected equipment against overloads, short circuits and earth faults.

With a rated uninterrupted current of 2500 A and an ultimate short-circuit breaking capacity of 130 kA at 400 V AC, 50 Hz, the E3V2500 is engineered for high-current installations with demanding prospective fault levels. It also incorporates 2 NO + 2 NC auxiliary contacts, open/closed position indication, trip indication and an integrated undervoltage release for comprehensive switchboard protection and monitoring.

Key Advantages

• High-performance ABB SACE Emax E3V air circuit breaker moving part.
• 2500 A rated uninterrupted current for demanding high-current distribution systems.
• Three-pole withdrawable configuration facilitates inspection, servicing and maintenance.
• Advanced PR123/P-LSIG R2500 electronic overcurrent release.
• Provides long-time, short-time, instantaneous and earth-fault protection.
• High 130 kA ultimate short-circuit breaking capacity at 400 V AC, 50 Hz.
• Adjustable protection settings support coordination across complex distribution systems.
• 2 NO + 2 NC auxiliary contacts, trip indication and open/closed position indication support switchboard monitoring.

Key Features

• ABB SACE Emax E3V series.
• 2500 A rated uninterrupted current (Iu).
• Three-pole circuit-breaker configuration.
• Withdrawable moving part construction.
• PR123/P-LSIG R2500 electronic overcurrent release.
• LSIG protection for long-time, short-time, instantaneous and earth-fault conditions.
• 130 kA Icu at 400 V AC, 50 Hz.
• Adjustable overload protection range of 400–2500 A.
• Adjustable short-time short-circuit protection range of 1500–25000 A.
• Adjustable instantaneous short-circuit protection range of 3750–37500 A.
• IP20 protection rating.
• Integrated earth-fault protection.
• Integrated undervoltage release.
• Integrated trip indication.
• Fitted with 2 NO + 2 NC auxiliary contacts.
• Integrated open/closed circuit-breaker position indication.
• Optional motor operating mechanism supported.

Advanced PR123/P-LSIG Protection for 2500A Power Distribution

Air circuit breakers such as the ABB SACE Emax E3V provide switching and electronic overcurrent protection for high-current low-voltage distribution systems. They are suited to protecting switchboards, busbars, cables, transformers and connected electrical equipment against potentially damaging overload, short-circuit and earth-fault conditions.

The PR123/P-LSIG electronic release combines long-time overload protection with adjustable short-time, instantaneous and earth-fault protection functions. Together with its 2500 A rating, 130 kA interruption capability at 400 V AC, withdrawable construction, undervoltage release and auxiliary status contacts, the 1SDA056679R1 provides an advanced and maintainable protection solution for demanding industrial and infrastructure power-distribution systems.

Typical Applications

• Industrial low-voltage switchboards and distribution systems.
• Main incoming circuit protection.
• High-current feeder protection.
• Transformer secondary protection.
• Selective protection in multi-level distribution networks.
• Manufacturing and process plants.
• Commercial and infrastructure power distribution.
• Installations requiring integrated earth-fault protection.