1SDA061231R1 ABB E4L-A 3600 PR123/P-LSIG 3600 A 3-Pole Fixed Air Circuit Breaker

Why Choose the ABB E4L-A 3600 PR123/P-LSIG 1SDA061231R1 Air Circuit Breaker?

The ABB 1SDA061231R1 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 advanced PR123/P-LSIG electronic overcurrent release, it provides long-time, short-time, instantaneous and earth-fault protection for high-capacity industrial and commercial electrical installations.

This configuration combines the E4L-A breaker platform with an R3600 overcurrent release and an Im 54000 A instantaneous setting reference. Its fixed construction and horizontal rear terminals are designed for permanent integration into compatible low-voltage switchboards, while the PR123/P trip unit provides comprehensive LSIG protection for sophisticated distribution networks.

With a rated current of 3600 A, three-pole construction and a UL configuration, the 1SDA061231R1 is suited to high-capacity three-phase distribution. It is also fitted with four auxiliary contacts and open/closed position indication, supporting integration with switchboard status monitoring and control systems.

Key Advantages

• High-current ABB SACE Emax air circuit breaker for demanding low-voltage power distribution.
• 3600 A rated current for large industrial, commercial and infrastructure installations.
• PR123/P-LSIG electronic trip unit for advanced overcurrent and earth-fault protection.
• Long-time, short-time, instantaneous and earth-fault protection in one electronic release.
• Fixed three-pole construction with horizontal rear terminals for switchboard integration.
• Four auxiliary contacts and open/closed position indication support monitoring and control applications.

Key Features

• ABB SACE Emax / New Emax E4L-A series.
• 3600 A rated current.
• Three-pole construction.
• PR123/P electronic overcurrent release.
• LSIG protection functions: long-time, short-time, instantaneous and earth fault.
• R3600 overcurrent release.
• Im 54000 A instantaneous setting reference.
• Fixed (F) execution.
• Horizontal rear (HR) terminals.
• Four auxiliary contacts.
• Open/closed position indication.
• UL configuration for low-voltage power distribution applications.

Advanced High-Current Protection for 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 require dependable protection against overload, short-circuit and earth-fault conditions.

The PR123/P-LSIG electronic release provides long-time protection against sustained overloads, short-time protection to support selective coordination, instantaneous protection against severe short circuits and earth-fault protection. Combined with the E4L-A breaker platform, these functions provide comprehensive 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 LSIG circuit protection.