1SDA057909R1 ABB E4H-A 3200 PR123/P-LSIG 3200 A 3-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E4H-A 3200 PR123/P-LSIG 1SDA057909R1 Air Circuit Breaker?

The ABB E4H-A 3200 PR123/P-LSIG, order code 1SDA057909R1, is a high-current three-pole withdrawable air circuit breaker moving part from the ABB SACE New Emax range. Rated at 3200 A, it is designed for protection and switching in demanding low-voltage power distribution systems and incorporates the advanced PR123/P-LSIG electronic overcurrent release.

The PR123/P-LSIG trip unit provides long-time, short-time, instantaneous and ground-fault protection. These LSIG protection functions provide comprehensive response to overloads, short circuits and earth-fault conditions, helping protect conductors, busbars, switchgear and connected electrical equipment. The breaker uses an R3200 overcurrent release with an instantaneous protection setting of 48,000 A.

With its 3200 A rating, three-pole configuration and withdrawable moving-part construction, the 1SDA057909R1 is designed for compatible ABB SACE New Emax withdrawable switchgear. The moving-part arrangement facilitates breaker isolation and removal for inspection and maintenance, while four auxiliary contacts and open/closed indication support integration with switchgear monitoring and control systems.

Key Advantages

• High-performance ABB SACE New Emax air circuit breaker moving part for demanding low-voltage distribution.
• 3200 A rated current for high-current industrial and commercial applications.
• Three-pole configuration for three-phase electrical distribution systems.
• PR123/P-LSIG electronic overcurrent release for comprehensive circuit protection.
• LSIG functions provide long-time, short-time, instantaneous and ground-fault protection.
• 48,000 A instantaneous protection setting for severe short-circuit conditions.
• Withdrawable moving-part construction supports convenient isolation, inspection and maintenance.

Key Features

• ABB SACE New Emax E4H-A circuit breaker platform.
• 3200 A rated current.
• Three-pole configuration.
• PR123/P-LSIG electronic trip unit.
• R3200 overcurrent release.
• 48,000 A instantaneous protection setting.
• Long-time overload protection.
• Short-time short-circuit protection.
• Instantaneous short-circuit protection.
• Ground-fault protection.
• Withdrawable (W) construction.
• Moving-part (MP) configuration.
• Four auxiliary contacts.
• Open/closed breaker position indication.

Reliable Circuit Protection for Power Distribution

Air circuit breakers such as the ABB SACE New Emax E4H-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 conditions and initiates breaker operation when configured protection thresholds are exceeded, helping safeguard cables, busbars, switchgear and connected electrical equipment.

The PR123/P-LSIG electronic release provides four principal protection functions covering long-time overloads, short-time faults, instantaneous short circuits and ground faults. Combined with the 3200 A E4H-A platform and withdrawable moving-part construction, the 1SDA057909R1 is well suited to installations requiring comprehensive electronic protection together with convenient breaker isolation 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.