1SDA056516R1 ABB E3H 3200 PR122/P-LSI 3200 A Air Circuit Breaker

Why Choose the ABB 1SDA056516R1 E3H 3200 Air Circuit Breaker?

The ABB 1SDA056516R1 is a high-performance SACE Emax E3H air circuit breaker moving part designed for protection and switching in high-current low-voltage electrical distribution systems. Configured as an E3H 3200 PR122/P-LSI, this three-pole withdrawable unit combines a rated uninterrupted current of 3200 A with ABB's advanced PR122/P electronic overcurrent release.

As part of the ABB SACE Emax series, the E3H 3200 is engineered for demanding industrial and commercial power distribution applications where high breaking capacity, selective protection and reliable operation are required. The PR122/P-LSI release provides long-time, short-time and instantaneous protection functions, helping protect electrical installations against overloads and short circuits while supporting coordinated protection strategies.

This configuration is a three-pole withdrawable moving part with a rated operational voltage of 690 V AC. The E3H performance level provides an ultimate short-circuit breaking capacity of up to 100 kA at 220–500 V AC and 85 kA at 660–690 V AC, making it suitable for high-fault-level switchboards and industrial power distribution systems.

Key Advantages

• High-performance ABB SACE Emax E3H air circuit breaker moving part for low-voltage power distribution.
• 3200 A rated uninterrupted current for high-current electrical systems.
• PR122/P-LSI electronic trip unit providing adjustable overload and short-circuit protection.
• Ultimate short-circuit breaking capacity of up to 100 kA.
• LSI protection provides long-time, short-time and instantaneous protection functions.
• Withdrawable construction supports convenient isolation and maintenance within compatible Emax switchgear.
• Fitted with four auxiliary contacts and circuit breaker open/closed position indication.

Key Features

• ABB SACE Emax E3H 3200 series.
• 3200 A rated uninterrupted current.
• Three-pole configuration.
• Withdrawable moving-part construction.
• PR122/P electronic overcurrent release.
• LSI protection functions for long-time, short-time and instantaneous protection.
• 690 V AC rated operational voltage.
• 100 kA Icu at 220–500 V AC.
• 85 kA Icu at 660–690 V AC.
• 85 kA rated service short-circuit breaking capacity.
• 75 kA short-time withstand current for 1 s.
• Four auxiliary contacts with open/closed position indication.

Reliable Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E3H provide switching and protection for low-voltage electrical distribution systems carrying very high currents. The E3H performance level is designed to interrupt substantial prospective fault currents, helping protect switchboards, busbars, cables and connected equipment against damaging overload and short-circuit conditions.

The PR122/P-LSI electronic trip unit provides long-time overload, short-time selective short-circuit and instantaneous short-circuit protection. This combination enables protection settings to be coordinated with other devices in the distribution system, while the withdrawable construction facilitates isolation and maintenance in compatible ABB SACE Emax switchgear assemblies.

Typical Applications

• Main incoming circuit protection in low-voltage switchboards.
• Industrial power distribution systems.
• High-current distribution feeders.
• Manufacturing and process plant electrical systems.
• Commercial and infrastructure power distribution.
• Generator and transformer distribution systems.
• Withdrawable switchgear requiring selective LSI electronic protection.