1SDA061135R1 ABB E2H-A 1200 PR123/P-LSIG 1200 A 3-Pole Fixed Air Circuit Breaker

Why Choose the ABB E2H-A 1200 PR123/P-LSIG 1SDA061135R1 Air Circuit Breaker?

The ABB E2H-A 1200 PR123/P-LSIG, order code 1SDA061135R1, is a high-performance SACE Emax air circuit breaker (ACB) designed for protection and switching in demanding low-voltage electrical distribution systems. As part of the ABB New Emax E2 series, it combines a 1200 A rated current with advanced electronic protection and a fixed-mounted construction for industrial, commercial and infrastructure power-distribution applications.

This three-pole circuit breaker is equipped with an ABB PR123/P-LSIG R1200 electronic overcurrent release, providing long-time, short-time, instantaneous and ground-fault protection. The PR123/P is an advanced protection release within the SACE Emax range, providing comprehensive LSIG protection for important distribution circuits where selective and dependable fault protection is required.

With a rated current of 1200 A, a three-pole fixed configuration and rear horizontal terminals, the E2H-A 1200 provides a robust solution for permanent installation within compatible low-voltage switchgear. Its high-performance E2H-A construction, comprehensive LSIG protection and 18,000 A instantaneous setting designation make it particularly suitable for demanding incoming, feeder and distribution applications.

Key Advantages

• High-performance ABB SACE Emax air circuit breaker for demanding low-voltage power distribution.
• 1200 A rated current for substantial industrial and commercial electrical loads.
• Advanced PR123/P-LSIG R1200 electronic overcurrent release for comprehensive circuit protection.
• LSIG functionality provides long-time, short-time, instantaneous and ground-fault protection.
• E2H-A high-performance construction for installations with demanding fault-protection requirements.
• Three-pole fixed construction with rear horizontal terminals for permanent switchboard installations.

Key Features

• ABB SACE Emax E2H-A series.
• 1200 A rated current.
• Three-pole configuration.
• Fixed-mounted version.
• Rear horizontal terminals.
• PR123/P-LSIG R1200 electronic overcurrent release.
• Long-time overload protection (L).
• Short-time short-circuit protection (S).
• Instantaneous short-circuit protection (I).
• Ground-fault protection (G).
• 18,000 A instantaneous setting designation.
• Fitted with four auxiliary contacts.
• Open / closed circuit-breaker position indication.
• UL configuration for compatible low-voltage power-distribution systems.

Advanced Circuit Protection for Power Distribution

Air circuit breakers such as the ABB SACE Emax E2H-A provide switching and protection for high-current low-voltage distribution circuits. By combining a robust circuit-breaking mechanism with an electronic protection release, the breaker can detect abnormal electrical conditions and disconnect the affected circuit to help protect conductors, switchgear and connected equipment.

The PR123/P-LSIG R1200 trip unit provides long-time protection against sustained overloads, short-time protection for coordinated response to short-circuit conditions, instantaneous protection against severe fault currents and ground-fault protection. Combined with the high-performance E2H-A frame, these functions provide comprehensive electronic protection for demanding low-voltage distribution systems.

Typical Applications

• Industrial low-voltage switchboards and distribution panels.
• Main incoming circuit protection.
• High-current electrical feeder protection.
• Power distribution in manufacturing and processing facilities.
• Commercial and infrastructure electrical installations.
• Industrial plant power distribution.
• Low-voltage switchgear requiring comprehensive electronic LSIG protection.