1SDA056412R1 ABB E3H1600PR122/P-LSI 1600 A 4-Pole Air Circuit Breaker

Why Choose the ABB E3H1600PR122/P-LSI Air Circuit Breaker?

The ABB E3H1600PR122/P-LSI is a high-performance four-pole air circuit breaker (ACB) designed for reliable protection, switching and isolation in low-voltage electrical distribution systems. As part of the proven ABB SACE Emax E3H series, this fixed circuit breaker combines a 1600 A rated current with the PR122/P-LSI electronic overcurrent release for dependable protection in demanding industrial and commercial installations.

The PR122/P-LSI electronic trip unit provides long-time overload, short-time delayed short-circuit and instantaneous short-circuit protection. These LSI protection functions support selective coordination within complex distribution networks while helping protect conductors, switchgear and connected equipment against sustained overloads and severe short-circuit conditions.

The ABB 1SDA056412R1 is supplied as a four-pole fixed E3H 1600 circuit breaker. Its high-breaking-capacity E3H construction, 1600 A current rating and advanced electronic protection make it suitable for main distribution boards, industrial switchboards, infrastructure installations and other high-current low-voltage power systems.

Key Advantages

• High-performance ABB SACE Emax air circuit breaker for low-voltage power distribution.
• 1600 A rated current for high-current electrical systems.
• Four-pole configuration for four-conductor switching and protection.
• PR122/P-LSI electronic trip unit provides long-time, short-time and instantaneous protection.
• 100 kA E3H breaking-capacity class for demanding fault-current conditions.
• Fixed-mounted construction for permanent switchboard installations.
• Electronic protection supports coordination and selectivity within industrial distribution networks.

Key Features

• ABB SACE Emax E3H series.
• 1600 A rated current.
• Four-pole circuit breaker configuration.
• PR122/P-LSI electronic overcurrent release.
• LSI protection functions: long-time, short-time and instantaneous.
• Fixed execution for switchboard installation.
• High short-circuit interruption capability for demanding distribution systems.
• Designed for selective protection of low-voltage electrical networks.

Reliable Protection for Low-Voltage Power Distribution

Air circuit breakers such as the ABB SACE Emax E3H protect electrical distribution systems against overload and short-circuit conditions while providing dependable switching and isolation. Their high interrupting capability makes them particularly suitable for main distribution points, industrial switchboards and other installations where prospective fault currents can be substantial.

The PR122/P-LSI electronic release provides long-time, short-time and instantaneous protection for effective coordination within the distribution system. Long-time protection responds to sustained overloads, short-time protection supports selective fault clearing, and instantaneous protection provides rapid interruption of severe short circuits.

Typical Applications

• Main low-voltage distribution switchboards.
• Industrial power distribution systems.
• Commercial and infrastructure electrical installations.
• Manufacturing plants and process facilities.
• Power distribution centres and electrical substations.
• Generator and transformer distribution systems.
• High-current switchgear and control assemblies.