1SDA061205R1 ABB E4L-A 3600 PR121/P-LI 3600 A 3-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E4L-A 3600 PR121/P-LI 1SDA061205R1 Air Circuit Breaker?

The ABB 1SDA061205R1 is a high-current E4L-A 3600 A three-pole withdrawable air circuit breaker moving part from the ABB SACE Emax / New Emax range, engineered for protection and switching in demanding low-voltage power distribution systems. Equipped with the PR121/P-LI electronic overcurrent release, it provides long-time and instantaneous protection against overload and severe short-circuit conditions.

As part of the ABB New Emax product family, the E4L-A combines robust high-current circuit-breaking technology with electronic protection and a withdrawable construction that supports efficient switchboard inspection, servicing and replacement. The moving portion is designed for use with a compatible ABB SACE Emax withdrawable fixed part, making it particularly suitable for installations where maintainability and continuity of service are important.

With a rated current of 3600 A, an R3600 overcurrent release and an Im 54000 A instantaneous setting reference, the 1SDA061205R1 provides robust protection for high-capacity three-phase distribution systems. This UL configuration is also fitted with four auxiliary contacts and open/closed position indication to support integration into switchboard monitoring and control systems.

Key Advantages

• High-current ABB SACE Emax air circuit breaker moving part for demanding low-voltage power distribution.
• 3600 A rated current for large industrial, commercial and infrastructure installations.
• PR121/P-LI electronic trip unit for dependable overcurrent protection.
• Long-time and instantaneous protection against overload and severe short-circuit conditions.
• Three-pole withdrawable construction supports efficient switchboard inspection, servicing and replacement.
• Four auxiliary contacts and open/closed position indication support switchboard monitoring and control.

Key Features

• ABB SACE Emax / New Emax E4L-A series.
• 3600 A rated current.
• Three-pole construction.
• PR121/P electronic overcurrent release.
• LI protection functions: long-time and instantaneous.
• R3600 overcurrent release.
• Im 54000 A instantaneous setting reference.
• Withdrawable (W) moving portion (MP).
• Four auxiliary contacts.
• Open/closed position indication.
• UL configuration for low-voltage power distribution applications.

High-Current Protection for Low-Voltage Power Distribution

Air circuit breakers such as the ABB E4L-A provide protection, switching and isolation within high-current low-voltage electrical networks. They are particularly suited to main distribution switchboards and large power distribution assemblies where substantial electrical loads must be protected against overload and short-circuit conditions while maintaining dependable system operation.

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 E4L-A platform, these functions provide a robust and serviceable protection solution for large industrial plants, infrastructure installations, commercial facilities and other high-capacity low-voltage distribution systems.

Typical Applications

• High-current low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Large commercial and infrastructure electrical installations.
• Manufacturing and process plant switchgear.
• Main incomers and high-capacity distribution feeders.
• Power distribution and control assemblies.
• Withdrawable switchboard installations requiring 3600 A three-pole circuit protection.