1SDA056475R1 ABB E3H2500 PR122/P-LI 2500A 4P Fixed Air Circuit Breaker

Why Choose the ABB E3H2500 PR122/P-LI 2500A 4P Fixed Air Circuit Breaker?

The ABB E3H2500 PR122/P-LI, order code 1SDA056475R1, is a high-performance SACE Emax air circuit breaker designed for protection and switching in demanding low-voltage electrical distribution systems. This E3H breaker has a rated current of 2500 A, a four-pole configuration and ABB's PR122/P-LI electronic overcurrent release.

Designed for fixed installation with rear flat horizontal terminals, the E3H2500 provides robust permanent integration into compatible low-voltage switchboards and distribution assemblies. Its H short-circuit performance level provides a rated ultimate short-circuit breaking capacity of 100 kA at 400 V AC and 85 kA at 690 V AC, supporting installations with substantial prospective fault currents.

The PR122/P-LI electronic release provides long-time overload and instantaneous short-circuit protection. Combined with its 2500 A current rating, four-pole architecture, 690 V AC rated operational voltage and fixed construction, the 1SDA056475R1 is well suited to main incomers, high-current feeders and critical industrial power distribution circuits.

Key Advantages

• High-performance 2500 A SACE Emax air circuit breaker for demanding low-voltage power distribution.
• Four-pole configuration for applications requiring switching and protection of three phases and neutral.
• PR122/P-LI electronic overcurrent release provides long-time and instantaneous protection functions.
• Fixed construction with rear flat horizontal terminals for permanent switchboard integration.
• High H-level short-circuit performance with 100 kA Icu at 400 V AC.
• Rated short-time withstand current of 75 kA for 1 s supports demanding distribution applications.

Key Features

• ABB SACE Emax E3H air circuit breaker.
• 2500 A rated current.
• Four-pole configuration.
• PR122/P-LI electronic overcurrent release.
• LI protection functions for long-time overload and instantaneous short-circuit protection.
• H short-circuit performance level.
• Rated operational voltage of 690 V AC.
• Rated ultimate short-circuit breaking capacity of 100 kA at 400 V AC.
• Rated ultimate short-circuit breaking capacity of 85 kA at 690 V AC.
• Rated service short-circuit breaking capacity of 85 kA at 400 V AC and 690 V AC.
• Fixed version with rear flat horizontal main terminals.
• Mechanical durability of 20,000 cycles.

Reliable LI Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E3H2500 protect high-current electrical distribution systems against damaging overload and short-circuit conditions. The PR122/P-LI electronic release combines long-time overload protection with instantaneous short-circuit protection, helping safeguard busbars, cables and connected electrical equipment.

The fixed construction and rear flat horizontal terminals support permanent integration into suitably designed switchboards. With its 2500 A rating, four-pole architecture and E3H short-circuit performance, the E3H2500 provides dependable switching and protection for demanding industrial and infrastructure power distribution systems.

Typical Applications

• Main incoming protection for industrial low-voltage switchboards.
• High-current feeder and distribution circuit protection.
• Manufacturing plants and process facilities.
• Commercial and infrastructure power distribution systems.
• Motor control centres and large electrical distribution assemblies.
• Fixed switchgear requiring high short-circuit performance and electronic LI protection.