1SDA060807R1 ABB E3H-A 800 PR122/P-LSIG 800 A 3-Pole Air Circuit Breaker

Why Choose the ABB E3H-A 800 PR122/P-LSIG 1SDA060807R1 Air Circuit Breaker?

The ABB E3H-A 800 PR122/P-LSIG, order code 1SDA060807R1, is a high-performance SACE Emax air circuit breaker (ACB) designed for protection and switching in industrial and commercial low-voltage electrical distribution systems. As part of the ABB New Emax E3 series, this circuit breaker combines an 800 A rated current with advanced electronic protection for dependable power distribution.

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

With a rated current of 800 A, a three-pole fixed configuration and rear horizontal terminals, the E3H-A 800 is suitable for demanding switchboard and power-distribution applications. The fixed-mounted design provides a robust installation solution for low-voltage switchgear where reliable circuit protection and precise electronic trip functionality are required.

Key Advantages

• High-performance ABB SACE Emax air circuit breaker for low-voltage power distribution.
• 800 A rated current for substantial industrial and commercial electrical loads.
• Advanced PR122/P-LSIG electronic trip unit for comprehensive circuit protection.
• LSIG protection provides long-time, short-time, instantaneous and ground-fault protection.
• Three-pole fixed construction for permanent switchboard installations.
• Rear horizontal terminals support practical integration into low-voltage switchgear assemblies.

Key Features

• ABB SACE Emax E3H-A series.
• 800 A rated current.
• Three-pole configuration.
• Fixed-mounted 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).
• Rear horizontal terminals.
• Four auxiliary contacts with open/closed position indication.

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 before equipment or conductors sustain serious damage.

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 current flowing outside the intended circuit path.

Typical Applications

• Industrial low-voltage switchboards and distribution panels.
• Main incoming circuit protection.
• Power distribution in manufacturing facilities.
• Commercial and infrastructure electrical installations.
• Protection of feeders and distribution circuits.
• Industrial plant and machinery power distribution.
• Low-voltage switchgear assemblies requiring electronic LSIG protection.