1SDA055903R1 ABB E2N1600 PR123/P-LSIG 1600 A 4-Pole Fixed Air Circuit Breaker

Why Choose the ABB E2N1600 1SDA055903R1 Air Circuit Breaker?

The ABB E2N1600 1SDA055903R1 is a high-performance SACE Emax air circuit breaker (ACB) designed for protection and switching in demanding low-voltage electrical distribution systems. Part of the established ABB New Emax series, this E2N 1600 configuration features a four-pole fixed design, a rated current of 1600 A and the advanced PR123/P-LSIG electronic overcurrent release.

Designed for industrial, commercial and infrastructure power distribution applications, the E2N1600 combines dependable high-current circuit protection with advanced electronic trip functionality. The PR123/P-LSIG release provides long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection, delivering comprehensive protection for critical electrical distribution circuits.

This version is a fixed four-pole circuit breaker with horizontal rear terminals and combines a 1600 A rated current with the E2N performance level. The E2N 1600 platform provides a rated ultimate short-circuit breaking capacity of 65 kA at 415 V AC and a rated short-time withstand current of 55 kA for 1 s, while four auxiliary contacts and open/closed position indication support integration into switchgear control and signalling systems.

Key Advantages

• High-performance ABB SACE Emax air circuit breaker for demanding low-voltage power distribution.
• 1600 A rated current for substantial industrial and commercial electrical loads.
• Four-pole fixed configuration suitable for four-conductor distribution systems.
• Advanced PR123/P-LSIG electronic trip unit provides comprehensive overcurrent and earth-fault protection.
• 65 kA rated ultimate short-circuit breaking capacity at 415 V AC.
• Horizontal rear terminals provide a practical connection arrangement for compatible low-voltage switchboards.

Key Features

• ABB SACE New Emax E2N 1600 circuit breaker platform.
• 1600 A rated current.
• Four-pole construction.
• Fixed circuit breaker configuration.
• Horizontal rear terminals.
• PR123/P-LSIG electronic overcurrent release.
• R1600 / 1600 A release rating.
• Long-time, short-time, instantaneous and earth-fault protection functions.
• 65 kA E2N short-circuit breaking performance at 415 V AC.
• Four auxiliary contacts and circuit breaker open/closed position indication.

Advanced LSIG Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E2N1600 provide switching and protection for high-current low-voltage distribution circuits. Electronic trip technology enables abnormal current conditions to be detected accurately, allowing the breaker to disconnect the protected circuit according to configured protection parameters and helping protect cables, switchgear and connected equipment.

The PR123/P-LSIG release provides L, S, I and G protection functions, covering long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection. Combined with the fixed SACE Emax architecture, four-pole construction and horizontal rear terminals, this configuration is well suited to switchboards requiring comprehensive high-current protection, selective coordination and dependable system integration.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Commercial and infrastructure electrical distribution.
• Manufacturing and process plant switchgear.
• Incoming and outgoing high-current feeder protection.
• Four-pole distribution systems requiring integrated earth-fault protection.