1SDA056661R1 ABB E3V2500 PR122/P-LSIG 2500A 3P Fixed Air Circuit Breaker

Why Choose the ABB E3V2500 PR122/P-LSIG 2500A 3P Fixed Air Circuit Breaker?

The ABB E3V2500 PR122/P-LSIG, order code 1SDA056661R1, is a high-performance SACE Emax air circuit breaker (ACB) designed for switching and comprehensive protection in demanding low-voltage power distribution systems. Part of the ABB SACE Emax E3 series, this three-pole fixed breaker combines a 2500 A rated uninterrupted current with the PR122/P-LSIG R2500 electronic overcurrent release.

The E3V2500 is supplied in a fixed three-pole configuration with horizontal rear terminals, making it suitable for integration into industrial switchboards and high-current distribution assemblies. Its PR122/P-LSIG electronic release provides long-time, short-time, instantaneous and earth-fault protection, helping safeguard cables, busbars, 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 installations with demanding prospective fault levels. Four change-over auxiliary contacts and open/closed position indication further support integration with switchboard signalling, monitoring and control systems.

Key Advantages

• High-performance ABB SACE Emax E3V air circuit breaker for demanding low-voltage distribution.
• 2500 A rated uninterrupted current for high-current electrical systems.
• Three-pole fixed configuration for industrial switchboard installations.
• Horizontal rear terminals facilitate practical busbar and switchboard connections.
• Advanced PR122/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.
• Fitted with four change-over auxiliary contacts and open/closed position indication.

Key Features

• ABB SACE Emax E3V series.
• 2500 A rated uninterrupted current (Iu).
• Three-pole circuit-breaker configuration.
• Fixed installation version.
• Horizontal rear terminals.
• PR122/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 1000–2500 A.
• Adjustable instantaneous short-circuit protection range of 3750–37500 A.
• 690 V rated voltage.
• Integrated earth-fault protection.
• Four change-over auxiliary contacts.
• Integrated open/closed circuit-breaker position indication.
• Optional motor operating mechanism supported.

Advanced 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 PR122/P-LSIG electronic release combines long-time overload protection with short-time, instantaneous and earth-fault protection functions. Together with its 2500 A rating, 130 kA interruption capability at 400 V AC, fixed construction and horizontal rear terminals, the 1SDA056661R1 provides a robust 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.