1SDA061111R1 ABB E2H-A 1200 PR121/P-LSI 1200 A 3-Pole Air Circuit Breaker

Why Choose the ABB E2H-A 1200 PR121/P-LSI 1SDA061111R1 Air Circuit Breaker?

The ABB 1SDA061111R1 is a high-performance E2H-A 1200 A three-pole air circuit breaker from the ABB SACE Emax range, designed for dependable protection and switching in demanding low-voltage electrical distribution systems. Equipped with the PR121/P-LSI electronic overcurrent release, it provides long-time, short-time and instantaneous protection for industrial and commercial power distribution applications.

As part of the ABB New Emax product family, the E2H-A combines robust circuit-breaking technology with electronic protection for installations requiring reliable management of overload and short-circuit conditions. The PR121/P trip unit provides configurable LSI protection functions, helping support effective coordination and protection throughout low-voltage distribution networks.

With a rated current of 1200 A and a three-pole configuration, the E2H-A 1200 is suitable for high-current three-phase electrical distribution. Its E2 frame and H high-performance class make it particularly suitable for switchboards, industrial distribution assemblies and other applications requiring robust air circuit breaker protection.

Key Advantages

• High-performance ABB SACE Emax air circuit breaker for low-voltage power distribution.
• 1200 A rated current for demanding industrial and commercial installations.
• PR121/P-LSI electronic trip unit for dependable overcurrent protection.
• Long-time, short-time and instantaneous protection against overload and short-circuit conditions.
• Three-pole configuration for three-phase electrical distribution systems.
• E2H-A design provides high-performance circuit protection for demanding switchboard applications.

Key Features

• ABB SACE Emax E2H-A series.
• 1200 A rated current.
• Three-pole construction.
• PR121/P electronic overcurrent release.
• LSI protection functions: long-time, short-time and instantaneous.
• E2 frame with H high-performance breaking class.
• Electronic protection for overload and short-circuit conditions.
• Designed for low-voltage switchboards and power distribution assemblies.

High-Performance Protection for Low-Voltage Power Distribution

Air circuit breakers such as the ABB E2H-A protect low-voltage electrical networks against damaging overload and short-circuit conditions while providing switching and isolation within the distribution system. They are commonly used in main switchboards and high-current distribution assemblies where dependable protection and circuit-breaking performance are essential.

The PR121/P-LSI electronic release provides long-time protection against sustained overloads, short-time protection to support selective coordination and instantaneous protection against severe short circuits. Combined with the E2H-A breaker platform, these functions provide reliable protection for industrial plants, commercial infrastructure and other demanding low-voltage power distribution systems.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Commercial building electrical distribution.
• Manufacturing and process plant switchgear.
• Power distribution and control assemblies.
• Three-phase installations requiring 1200 A circuit protection.