1SDA056783R1 ABB E3L2500 PR123/P-LSIG 2500 A 4-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E3L2500 PR123/P-LSIG 1SDA056783R1 Air Circuit Breaker?

The ABB 1SDA056783R1 is a high-performance SACE Emax E3 L withdrawable air circuit breaker (ACB) moving part designed for protection and switching in demanding low-voltage electrical distribution systems. This four-pole breaker combines a 2500 A rated uninterrupted current with advanced electronic protection, making it suitable for high-capacity industrial, commercial and infrastructure power distribution applications.

The E3L2500 is equipped with an ABB PR123/P-LSIG R2500 electronic overcurrent release, providing long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection. These L, S, I and G functions provide comprehensive protection against overloads, short circuits and earth faults while supporting selective coordination within complex electrical distribution networks.

With a 2500 A rating, four-pole construction and withdrawable moving-part configuration, the 1SDA056783R1 is designed for use with a compatible SACE Emax fixed part. The E3 L 2500 platform provides a rated ultimate short-circuit breaking capacity of 130 kA at 415 V AC, while the withdrawable arrangement supports efficient isolation, inspection, servicing and replacement within compatible switchgear.

Key Advantages

• High-performance ABB SACE Emax E3 L air circuit breaker moving part for demanding low-voltage distribution systems.
• 2500 A rated uninterrupted current for high-capacity power distribution applications.
• Four-pole withdrawable configuration supports switching and protection across four conductors.
• PR123/P-LSIG R2500 electronic release provides long-time, short-time, instantaneous and earth-fault protection.
• High 130 kA ultimate short-circuit breaking capacity at 415 V AC.
• Withdrawable moving-part construction supports efficient isolation, servicing and replacement within compatible SACE Emax switchgear.

Key Features

• ABB SACE Emax E3 L series.
• 2500 A rated uninterrupted current at 40 °C.
• Four-pole withdrawable air circuit breaker moving part.
• PR123/P-LSIG R2500 electronic overcurrent release.
• Long-time overload (L), short-time short-circuit (S), instantaneous short-circuit (I) and earth-fault (G) protection.
• 130 kA Icu at 415 V AC.
• 15 kA short-time withstand current for 1 s.
• Short-time protection supports selective coordination between upstream and downstream protective devices.
• Integrated earth-fault protection.
• Withdrawable moving-part construction for compatible SACE Emax fixed parts.
• Designed for high-current industrial and commercial low-voltage power distribution.

Advanced Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E3L2500 provide controlled switching and protection for high-current low-voltage distribution circuits. The PR123/P-LSIG electronic release combines long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection, helping safeguard switchboards, conductors and connected electrical equipment against a broad range of damaging electrical faults.

The short-time protection function supports selective coordination between upstream and downstream protective devices, while the earth-fault function provides additional protection against ground-fault conditions. Combined with its 2500 A rating, four-pole arrangement, 130 kA breaking capacity at 415 V AC and withdrawable construction, the 1SDA056783R1 is particularly suited to high-capacity switchgear where dependable protection, system availability and maintainability are important.

Typical Applications

• Main low-voltage electrical distribution boards.
• Industrial withdrawable switchboards and switchgear assemblies.
• Manufacturing plants and process facilities.
• Commercial and infrastructure power distribution systems.
• High-current incomer and feeder circuit protection.
• Four-pole electrical networks requiring selective short-circuit and earth-fault protection.