1SDA060919R1 ABB E1N-A 800 PR121/P-LSI 800 A 3-Pole Fixed Air Circuit Breaker

Why Choose the ABB E1N-A 800 PR121/P-LSI 1SDA060919R1 Air Circuit Breaker?

The ABB E1N-A 800 PR121/P-LSI, order code 1SDA060919R1, is a robust SACE Emax air circuit breaker (ACB) designed for protection and switching in low-voltage electrical distribution systems. As part of the ABB New Emax E1 series, it combines an 800 A rated current with electronic protection for industrial, commercial and infrastructure power-distribution applications.

This three-pole circuit breaker is equipped with an ABB PR121/P-LSI electronic overcurrent release, providing long-time, short-time and instantaneous protection functions. These LSI functions help protect electrical installations against sustained overloads and short-circuit conditions while allowing coordinated protection within low-voltage distribution networks.

With a rated current of 800 A and a three-pole fixed configuration, the E1N-A 800 provides a dependable solution for permanent installation within electrical switchboards. Its combination of electronic trip protection, robust SACE Emax construction and compact E1 frame makes it suitable for incoming supplies, feeders and other important distribution circuits.

Key Advantages

• Robust ABB SACE Emax air circuit breaker for low-voltage power distribution.
• 800 A rated current suitable for industrial and commercial electrical loads.
• Advanced PR121/P-LSI electronic overcurrent release for comprehensive circuit protection.
• LSI functionality provides long-time, short-time and instantaneous protection.
• Three-pole fixed construction for permanent switchboard installations.
• Designed for dependable protection of incoming supplies, feeders and distribution circuits.

Key Features

• ABB SACE Emax E1N-A series.
• 800 A rated current.
• Three-pole configuration.
• Fixed-mounted version.
• PR121/P-LSI electronic overcurrent release.
• Long-time overload protection (L).
• Short-time short-circuit protection (S).
• Instantaneous short-circuit protection (I).
• Electronic trip technology for accurate circuit protection.
• Designed for low-voltage switchboards and power-distribution systems.

Reliable Circuit Protection for Power Distribution

Air circuit breakers such as the ABB SACE Emax E1N-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 PR121/P-LSI trip unit provides long-time protection against sustained overloads, short-time protection for coordinated response to short-circuit conditions and instantaneous protection against severe fault currents. This combination makes the E1N-A 800 suitable for distribution systems where reliable electronic overcurrent protection and selective coordination are important.

Typical Applications

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