1SDA061203R1 ABB E4L-A 3600 PR121/P-LI 3600 A 3-Pole Fixed Air Circuit Breaker

Why Choose the ABB E4L-A 3600 PR121/P-LI 1SDA061203R1 Air Circuit Breaker?

The ABB 1SDA061203R1 is a high-current E4L-A 3600 A three-pole fixed air circuit breaker 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 short-circuit conditions.

As part of the ABB New Emax product family, the E4L-A combines robust air circuit breaker technology with electronic protection for installations handling substantial electrical loads. The PR121/P trip unit provides essential LI protection functions, while the fixed construction is suited to permanent integration within compatible low-voltage switchboards and power distribution assemblies.

With a rated current of 3600 A and a three-pole fixed configuration, the E4L-A is designed for high-capacity three-phase distribution. Its E4 frame and L performance class make it suitable for main incoming supplies, large distribution feeders and other applications where dependable high-current circuit protection is required.

Key Advantages

• High-current ABB SACE Emax air circuit breaker for demanding low-voltage power distribution.
• 3600 A rated current for large industrial and commercial electrical 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 fixed construction for integration into three-phase switchboards.
• E4L-A platform provides robust circuit protection for high-capacity power distribution applications.

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.
• Fixed (F) execution.
• E4 frame with L performance class.
• Electronic protection for overload and short-circuit conditions.
• Designed for high-current low-voltage switchboards and power distribution assemblies.

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.

The PR121/P-LI electronic release provides long-time protection against sustained overloads together with instantaneous protection against severe short circuits. Combined with the E4L-A breaker platform, these functions provide dependable protection 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.
• Fixed switchboard installations requiring 3600 A three-pole circuit protection.