1SDA060851R1 ABB E3V-A 800 PR121/P-LI 800 A 3-Pole Fixed Air Circuit Breaker

Why Choose the ABB E3V-A 800 PR121/P-LI 1SDA060851R1 Air Circuit Breaker?

The ABB E3V-A 800 PR121/P-LI, order code 1SDA060851R1, 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 E3 series, it combines an 800 A rated current with a high short-circuit breaking capability for industrial and commercial power distribution.

This three-pole circuit breaker is equipped with an ABB PR121/P-LI electronic overcurrent release, providing long-time overload and instantaneous short-circuit protection. The electronic trip unit enables dependable protection of electrical installations while the E3V performance level provides a short-circuit current rating of 125 kA at 480 V AC.

With a rated current of 800 A, a three-pole fixed configuration and horizontal rear terminals, the E3V-A 800 is designed for robust installation within low-voltage switchboards. Its fixed construction and advanced electronic protection make it suitable for critical power-distribution applications where high fault-current performance and reliable circuit protection are required.

Key Advantages

• High-performance ABB SACE Emax air circuit breaker for demanding low-voltage distribution systems.
• 800 A rated current suitable for substantial industrial and commercial electrical loads.
• 125 kA short-circuit current rating at 480 V AC for high fault-level applications.
• Advanced PR121/P-LI electronic overcurrent release for overload and short-circuit protection.
• Three-pole fixed construction for permanent switchboard installations.
• Horizontal rear terminals support practical integration into low-voltage switchgear.

Key Features

• ABB SACE Emax E3V-A series.
• 800 A rated current.
• Three-pole configuration.
• Fixed-mounted version.
• Horizontal rear terminals.
• PR121/P-LI electronic overcurrent release.
• Long-time overload protection (L).
• Instantaneous short-circuit protection (I).
• 125 kA short-circuit current rating at 480 V AC.
• 85 kA short-time current rating.
• Fitted with four auxiliary contacts.
• Open / closed circuit-breaker position indication.

High-Performance Circuit Protection for Power Distribution

Air circuit breakers such as the ABB SACE Emax E3V-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 PR121/P-LI trip unit provides long-time protection against sustained overload conditions together with instantaneous protection against severe short-circuit currents. Combined with the high breaking performance of the E3V-A frame, this makes the breaker particularly suitable for electrical distribution systems with demanding fault-current requirements.

Typical Applications

• Industrial low-voltage switchboards and distribution panels.
• Main incoming circuit protection.
• High fault-level electrical distribution systems.
• Power distribution in manufacturing facilities.
• Commercial and infrastructure electrical installations.
• Protection of high-current feeders and distribution circuits.
• Industrial plant and machinery power distribution.