1SDA061137R1 ABB E2H-A 1200 PR123/P-LSIG 1200 A 3-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E2H-A 1200 PR123/P-LSIG 1SDA061137R1 Air Circuit Breaker?

The ABB E2H-A 1200 PR123/P-LSIG, order code 1SDA061137R1, is a high-performance SACE Emax air circuit breaker (ACB) moving part 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 withdrawable construction for industrial, commercial and infrastructure power-distribution applications.

This three-pole breaker is equipped with an ABB PR123/P-LSIG R1200 electronic overcurrent release, providing long-time, short-time, instantaneous and ground-fault protection. These LSIG functions provide comprehensive protection against overloads, short circuits and ground faults, making the breaker suitable for important distribution circuits where dependable and coordinated protection is required.

With a rated current of 1200 A and a three-pole withdrawable configuration, the E2H-A 1200 is supplied as the moving part for a compatible SACE Emax draw-out circuit breaker installation. 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 circuits where convenient isolation and maintenance are required.

Key Advantages

• High-performance ABB SACE Emax air circuit breaker moving part for demanding low-voltage distribution systems.
• 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 withdrawable construction supports convenient isolation, inspection and maintenance.

Key Features

• ABB SACE Emax E2H-A series.
• 1200 A rated current.
• Three-pole configuration.
• Withdrawable / draw-out moving-part version.
• 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 and withdrawable construction, these functions provide comprehensive electronic protection together with convenient circuit-breaker isolation, inspection and maintenance.

Typical Applications

• Industrial low-voltage switchboards and distribution systems.
• 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.
• Draw-out switchgear requiring comprehensive electronic LSIG protection.