1SDA056498R1 ABB E3H 3200 PR121/P-LSIG 3200 A Air Circuit Breaker

Why Choose the ABB 1SDA056498R1 E3H 3200 Air Circuit Breaker?

The ABB 1SDA056498R1 is a high-performance SACE Emax E3H air circuit breaker (ACB) designed for protection and switching in high-current low-voltage electrical distribution systems. Configured as an E3H 3200 PR121/P-LSIG, this three-pole fixed circuit breaker combines a rated current of 3200 A with ABB's electronic PR121/P trip unit for comprehensive overcurrent and earth-fault protection.

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 dependable operation are required. The PR121/P-LSIG electronic release provides long-time, short-time, instantaneous and ground-fault protection functions, allowing the breaker to protect electrical installations against overloads, short circuits and earth faults.

This configuration is a three-pole fixed breaker with horizontal rear terminals and a rated uninterrupted current of 3200 A. The E3H performance level provides an ultimate short-circuit breaking capacity of up to 100 kA at 380–440 V AC, making the breaker suitable for high-fault-level distribution systems, switchboards and industrial power installations.

Key Advantages

• High-performance ABB SACE Emax E3H air circuit breaker for low-voltage power distribution.
• 3200 A rated uninterrupted current for high-current electrical systems.
• PR121/P-LSIG electronic trip unit providing comprehensive circuit protection.
• 100 kA ultimate short-circuit breaking capacity at 380–440 V AC.
• LSIG protection covers long-time, short-time, instantaneous and ground-fault functions.
• Three-pole fixed construction for permanent installation in switchboards and distribution assemblies.
• Horizontal rear terminals support practical integration into high-current busbar systems.

Key Features

• ABB SACE Emax E3H 3200 series.
• 3200 A rated current.
• Three-pole configuration.
• Fixed circuit breaker construction.
• PR121/P electronic overcurrent release.
• LSIG protection functions for overload, selective short-circuit, instantaneous short-circuit and ground-fault protection.
• 690 V AC rated operational voltage.
• 100 kA Icu at 380–440 V AC.
• 85 kA Ics across the rated operational voltage range.
• 75 kA short-time withstand current for 1 s.
• Horizontal rear terminal arrangement.

Reliable Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E3H provide protection and switching 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 downstream electrical equipment against damaging short-circuit conditions.

The PR121/P-LSIG electronic trip unit extends this protection with adjustable electronic functions for overload, short-time short-circuit, instantaneous short-circuit and ground-fault conditions. This combination makes the 1SDA056498R1 particularly suitable for main incomers, distribution feeders and other critical circuits where coordinated and selective protection is required.

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.
• Electrical installations requiring selective LSIG protection.