1SDA060809R1 ABB E3H-A 800 PR122/P-LSIG 800 A 3-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E3H-A 800 PR122/P-LSIG 1SDA060809R1 Air Circuit Breaker?

The ABB E3H-A 800 PR122/P-LSIG, order code 1SDA060809R1, 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 E3 series, it combines an 800 A rated current with advanced electronic protection for industrial and commercial power distribution.

This three-pole breaker is equipped with an ABB PR122/P-LSIG electronic overcurrent release, providing long-time, short-time, instantaneous and ground-fault protection. These LSIG protection functions enable comprehensive protection against overloads, short circuits and earth faults while supporting selective coordination within electrical distribution networks.

With a rated current of 800 A and a three-pole withdrawable configuration, the E3H-A 800 is designed as the moving part of a withdrawable SACE Emax circuit breaker installation. Its withdrawable construction facilitates isolation, inspection and maintenance within compatible low-voltage switchgear while retaining the robust performance required for critical power-distribution applications.

Key Advantages

• High-performance ABB SACE Emax air circuit breaker moving part for low-voltage power distribution.
• 800 A rated current suitable for substantial industrial and commercial electrical loads.
• Advanced PR122/P-LSIG electronic trip unit for comprehensive circuit protection.
• LSIG functionality provides long-time, short-time, instantaneous and ground-fault protection.
• Three-pole withdrawable construction supports convenient isolation and maintenance.
• Designed for integration into compatible ABB SACE Emax withdrawable switchgear installations.

Key Features

• ABB SACE Emax E3H-A series.
• 800 A rated current.
• Three-pole configuration.
• Withdrawable moving-part version.
• PR122/P-LSIG electronic overcurrent release.
• Long-time overload protection (L).
• Short-time short-circuit protection (S).
• Instantaneous short-circuit protection (I).
• Ground-fault protection (G).
• Fitted with four auxiliary contacts.
• Open / closed circuit-breaker position indication.
• Designed for demanding low-voltage switchgear and power-distribution systems.

Advanced Circuit Protection for Power Distribution

Air circuit breakers such as the ABB SACE Emax E3H-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 protect conductors, switchgear and connected equipment.

The PR122/P-LSIG trip unit provides multiple protection functions for coordinating the breaker with upstream and downstream protective devices. Long-time protection responds to sustained overload conditions, short-time and instantaneous functions protect against short-circuit currents, while ground-fault protection helps detect potentially hazardous fault currents flowing outside the intended circuit path.

Typical Applications

• Industrial low-voltage switchboards and distribution systems.
• Main incoming circuit protection.
• Power distribution in manufacturing facilities.
• Commercial and infrastructure electrical installations.
• Protection of high-current feeders and distribution circuits.
• Industrial plant power distribution.
• Withdrawable switchgear requiring electronic LSIG protection.