1SDA057761R1 ABB E3V-A 2000 PR121/P-LSIG 2000 A 3-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E3V-A 2000 PR121/P-LSIG 1SDA057761R1 Air Circuit Breaker?

The ABB E3V-A 2000 PR121/P-LSIG, order code 1SDA057761R1, is a high-performance three-pole withdrawable air circuit breaker moving part from the ABB SACE New Emax range, designed for protection and switching in demanding low-voltage electrical distribution systems. Rated at 2000 A, this E3V-A configuration combines robust Emax circuit breaker technology with the PR121/P-LSIG electronic overcurrent release.

The PR121/P-LSIG trip unit provides long-time, short-time, instantaneous and ground-fault protection, helping protect electrical installations, conductors and connected equipment against overloads, short circuits and earth faults. The R2000 release is configured with an instantaneous protection setting of 30,000 A, providing rapid protection against severe short-circuit conditions.

With a rated current of 2000 A and a three-pole configuration, the 1SDA057761R1 is designed for high-current three-phase power distribution. Its withdrawable moving-part (W MP) construction supports convenient isolation and removal from compatible switchgear for inspection and maintenance, while four auxiliary contacts and open/closed position indication support breaker status monitoring.

Key Advantages

• High-performance ABB SACE New Emax air circuit breaker moving part for demanding low-voltage distribution.
• 2000 A rated current for high-current industrial and commercial applications.
• Three-pole configuration for three-phase electrical distribution systems.
• PR121/P-LSIG electronic overcurrent release for comprehensive circuit protection.
• LSIG functions provide long-time, short-time, instantaneous and ground-fault protection.
• Withdrawable moving-part design supports convenient isolation, inspection and maintenance.
• Four auxiliary contacts and open/closed position indication support switchgear monitoring and control.

Key Features

• ABB SACE New Emax E3V-A circuit breaker platform.
• 2000 A rated current.
• Three-pole configuration.
• PR121/P-LSIG electronic trip unit.
• R2000 overcurrent release.
• 30,000 A instantaneous protection setting.
• Long-time overload protection.
• Short-time short-circuit protection.
• Instantaneous short-circuit protection.
• Ground-fault protection.
• Withdrawable (W) moving-part (MP) construction.
• Four auxiliary contacts.
• Open/closed breaker position indication.

Reliable Circuit Protection for Power Distribution

Air circuit breakers such as the ABB SACE New Emax E3V-A are designed to protect high-current low-voltage electrical distribution systems against overload, short-circuit and ground-fault conditions. The electronic trip unit monitors circuit current and initiates breaker operation when configured protection thresholds are exceeded, helping safeguard cables, switchgear and connected electrical equipment.

The PR121/P-LSIG electronic release provides four key protection functions covering long-time overloads, short-time faults, instantaneous short circuits and ground faults. Combined with the withdrawable Emax construction, the 1SDA057761R1 is particularly suitable for switchboards requiring comprehensive electronic protection together with convenient breaker isolation, inspection and maintenance.

Typical Applications

• Industrial low-voltage power distribution systems.
• Main incoming and distribution switchboards.
• Industrial plants and manufacturing facilities.
• Commercial building electrical distribution.
• High-current feeder and circuit protection.
• Power distribution centres and withdrawable switchgear assemblies.