1SDA056642R1 ABB E3V2000 PR121/P-LSIG 2000 A 3-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E3V2000 PR121/P-LSIG 1SDA056642R1 Air Circuit Breaker?

The ABB 1SDA056642R1 is a high-performance SACE Emax E3 V withdrawable air circuit breaker (ACB) 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 current with advanced electronic protection and high short-circuit performance for industrial, commercial and infrastructure power distribution applications.

The E3V2000 is equipped with an ABB PR121/P-LSIG electronic overcurrent release, providing long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection. These L, S, I and G protection functions provide comprehensive protection while supporting selective coordination within complex low-voltage distribution networks.

With a rated current of 2000 A, a three-pole withdrawable configuration and a rated operational voltage of up to 690 V AC, the 1SDA056642R1 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 for installations with high prospective fault currents.

Key Advantages

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

Key Features

• ABB SACE Emax E3 V series.
• 2000 A rated current.
• Three-pole withdrawable air circuit breaker.
• PR121/P-LSIG electronic overcurrent release.
• Long-time overload (L), short-time short-circuit (S), instantaneous short-circuit (I) and earth-fault (G) 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.
• 1000 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• Withdrawable design for serviceable switchgear installations.

Advanced 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-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 fault conditions.

The short-time protection function supports selective coordination between protective devices, while the earth-fault function provides additional protection against ground-fault conditions. Combined with the high-breaking-capacity E3 V platform and withdrawable construction, the 1SDA056642R1 is particularly suited to industrial switchgear where dependable protection, maintainability and system availability 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 and earth-fault protection.