1SDA061077R1 ABB E2H-A 800 PR121/P-LI 800 A 3-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E2H-A 800 PR121/P-LI 1SDA061077R1 Air Circuit Breaker?

The ABB 1SDA061077R1 is an E2H-A 800 A three-pole withdrawable air circuit breaker moving part from the ABB SACE Emax range, designed for dependable protection and switching in demanding low-voltage electrical distribution systems. Equipped with the PR121/P-LI electronic overcurrent release, it provides long-time and instantaneous protection against overload and short-circuit conditions.

As part of the ABB New Emax product family, the E2H-A combines high-performance circuit-breaking technology with electronic protection and a withdrawable construction that supports efficient inspection, servicing and replacement. The PR121/P trip unit provides essential overcurrent protection, while the moving-part configuration is designed for use with a compatible Emax withdrawable fixed part.

With a rated current of 800 A and a three-pole withdrawable configuration, the 1SDA061077R1 is suitable for high-current three-phase distribution systems. It incorporates an R800 rating plug and an Im 12000 A instantaneous setting reference, together with four auxiliary contacts and open/closed position indication for integration into industrial switchboards.

Key Advantages

• High-performance ABB SACE Emax air circuit breaker moving part for low-voltage power distribution.
• 800 A rated current for demanding industrial and commercial installations.
• PR121/P-LI electronic trip unit for dependable overcurrent protection.
• Long-time and instantaneous protection against overload and short-circuit conditions.
• Three-pole withdrawable construction supports convenient switchboard servicing and maintenance.
• Four auxiliary contacts and open/closed position indication support integration with monitoring and control systems.

Key Features

• ABB SACE Emax E2H-A series.
• 800 A rated current.
• Three-pole construction.
• PR121/P electronic overcurrent release.
• LI protection functions: long-time and instantaneous.
• R800 rating plug.
• Im 12000 A instantaneous setting reference.
• Withdrawable (W) moving portion (MP).
• Four auxiliary contacts with open/closed position indication.
• UL configuration for low-voltage power distribution applications.

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 particularly suited to main switchboards and high-current distribution assemblies where dependable protection, high circuit-breaking performance and serviceability are important.

The PR121/P-LI electronic release provides long-time protection against sustained overloads together with instantaneous protection against severe short circuits. Combined with the withdrawable E2H-A breaker platform, these functions provide a robust and serviceable protection solution 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.
• Withdrawable switchboard installations requiring 800 A three-pole circuit protection.