1SDA056641R1 ABB E3V2000 PR121/P-LSI 2000 A 3-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E3V2000 PR121/P-LSI 1SDA056641R1 Air Circuit Breaker?

The ABB 1SDA056641R1 is a high-performance SACE Emax E3 V withdrawable air circuit breaker (ACB) moving part designed for protection and switching in demanding low-voltage electrical distribution systems. As part of the ABB SACE Emax series, this three-pole breaker combines a 2000 A rated uninterrupted current with high short-circuit performance for industrial, commercial and infrastructure power distribution applications.

The E3V2000 is equipped with an ABB PR121/P-LSI R2000 electronic overcurrent release, providing long-time overload, short-time short-circuit and instantaneous short-circuit protection. These L, S and I protection functions support effective selectivity and coordination within complex electrical distribution networks while protecting conductors and connected equipment against damaging overcurrent conditions.

With a rated uninterrupted current of 2000 A, a rated operational voltage of 690 V AC and a three-pole withdrawable configuration, the 1SDA056641R1 is well suited to main distribution boards, industrial switchgear and high-current feeder applications. The E3 V performance level provides a rated ultimate short-circuit breaking capacity of 130 kA at 400 V AC, while the withdrawable moving-part design supports efficient isolation and maintenance.

Key Advantages

• High-performance ABB SACE Emax E3 V air circuit breaker moving part for low-voltage power distribution.
• 2000 A rated uninterrupted current for demanding high-current installations.
• Three-pole withdrawable configuration for flexible switchboard operation and maintenance.
• PR121/P-LSI electronic release provides long-time, short-time and instantaneous overcurrent protection.
• High 130 kA ultimate short-circuit breaking capacity at 400 V AC.
• Withdrawable construction supports efficient isolation, inspection and replacement within compatible switchgear assemblies.

Key Features

• ABB SACE Emax E3 V series.
• 2000 A rated uninterrupted current.
• Three-pole withdrawable air circuit breaker moving part.
• PR121/P-LSI R2000 electronic overcurrent release.
• Long-time overload (L), short-time short-circuit (S) and instantaneous short-circuit (I) protection.
• 690 V AC rated operational voltage.
• 130 kA Icu at 400 V AC.
• 100 kA Ics at 400 V AC.
• 85 kA short-time withstand current for 1 s.
• 800–2000 A overload release adjustment range.
• 2000–20000 A short-time delayed short-circuit adjustment range.
• 3000–30000 A instantaneous short-circuit adjustment range.
• Four auxiliary changeover contacts and open/closed position indication.

Selective Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E3V2000 provide controlled switching and protection for high-current low-voltage distribution circuits. The PR121/P-LSI electronic release combines long-time overload, short-time delayed short-circuit and instantaneous short-circuit protection, helping safeguard switchboards, conductors and connected electrical equipment against a broad range of overcurrent and fault conditions.

The short-time protection function supports selective coordination between protective devices, helping isolate faults at the appropriate level of the distribution system. Combined with the high-breaking-capacity E3 V platform and withdrawable construction, the 1SDA056641R1 is particularly suited to industrial 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 feeder and distribution circuit protection.
• Electrical networks requiring selective short-circuit protection.