1SDA056844R1 ABB E4H3200 PR122/P-LSI 3200A 4-Pole Withdrawable Air Circuit Breaker Moving Part

Why Choose the ABB E4H3200 PR122/P-LSI 3200A Air Circuit Breaker Moving Part?

The ABB E4H3200 PR122/P-LSI, order code 1SDA056844R1, is a high-performance SACE Emax moving part for a withdrawable air circuit breaker designed for switching and protection in demanding high-current low-voltage electrical distribution systems. Part of the ABB SACE Emax E4H series, this four-pole configuration combines a 3200 A rated uninterrupted current with the PR122/P-LSI R3200 electronic overcurrent release.

The PR122/P-LSI electronic trip unit provides long-time overload, short-time short-circuit and instantaneous short-circuit protection. These LSI functions help safeguard switchboards, busbars, feeders, cables and connected equipment against damaging overcurrent conditions while supporting coordinated protection in major industrial and infrastructure distribution networks.

Designed as the moving portion of a four-pole withdrawable E4H circuit breaker, the 1SDA056844R1 is intended for use with the corresponding ABB SACE Emax fixed part installed in the switchboard. The E4H performance level provides an ultimate short-circuit breaking capacity of 100 kA at 400 V AC and 85 kA at 690 V AC, while the withdrawable architecture supports efficient inspection, servicing and replacement.

Key Advantages

• Genuine ABB SACE Emax E4H moving part for withdrawable circuit-breaker assemblies.
• 3200 A rated uninterrupted current for high-capacity low-voltage distribution.
• Four-pole construction for three-phase and neutral distribution systems.
• PR122/P-LSI R3200 electronic overcurrent release.
• LSI functions provide long-time, short-time and instantaneous overcurrent protection.
• 100 kA ultimate short-circuit breaking capacity at 400 V AC.
• Withdrawable architecture supports efficient inspection, maintenance and circuit-breaker replacement.

Key Features

• ABB SACE Emax E4H series.
• 3200 A rated uninterrupted current.
• Four-pole construction.
• Withdrawable moving-part execution.
• PR122/P-LSI R3200 electronic trip unit.
• Long-time (L) overload protection.
• Short-time (S) short-circuit protection.
• Instantaneous (I) short-circuit protection.
• H short-circuit performance level.
• Four auxiliary contacts with circuit-breaker open/closed position indication.

High-Performance Protection for Power Distribution

ABB SACE Emax E4H air circuit breakers provide switching, isolation and electronic overcurrent protection for high-current low-voltage distribution systems. The E4H performance level offers high short-circuit interruption capability, helping protect major switchboards, busbars, feeders and connected equipment in installations with substantial prospective fault currents.

The PR122/P-LSI electronic release combines long-time overload protection with short-time and instantaneous short-circuit functions. Together with the E4H3200 platform's 3200 A rating, four-pole configuration and withdrawable architecture, it provides a dependable and maintainable protection solution for critical industrial, commercial and infrastructure distribution systems.

Typical Applications

• Main incoming protection in high-capacity low-voltage switchboards.
• Industrial power distribution systems.
• Transformer secondary protection.
• High-current feeder protection.
• Manufacturing and process plants.
• Utility and infrastructure distribution systems.
• Large commercial and critical electrical installations.
• Four-wire withdrawable switchgear requiring high short-circuit performance.