1SDA055991R1 ABB E2S1600 1600 A 3-Pole Fixed Air Circuit Breaker

Why Choose the ABB E2S1600 1SDA055991R1 Air Circuit Breaker?

The ABB E2S1600 1SDA055991R1 is a high-performance SACE Emax air circuit breaker (ACB) designed for protection and switching in high-current low-voltage electrical distribution systems. Part of the proven ABB SACE Emax E2 series, this three-pole fixed circuit breaker combines a 1600 A rated current with the advanced PR123/P-LSIG electronic trip unit for comprehensive overload, short-time, instantaneous and earth-fault protection.

Designed for demanding industrial and commercial power distribution applications, the E2S1600 provides reliable circuit protection while supporting selective coordination within low-voltage switchboards. Its PR123/P-LSIG electronic overcurrent release provides L, S, I and G protection functions together with advanced measurement capabilities, making it suitable for critical distribution systems requiring sophisticated protection and monitoring.

This model is a three-pole fixed circuit breaker equipped with horizontal rear terminals. The E2S performance level provides a rated uninterrupted current of 1600 A, a rated ultimate short-circuit breaking capacity of 85 kA at 415 V AC and a short-time withstand current of 65 kA for 1 second.

Key Advantages

• High-current 1600 A air circuit breaker for low-voltage power distribution.
• PR123/P-LSIG electronic trip unit provides comprehensive circuit protection and measurement functionality.
• Long-time, short-time, instantaneous and earth-fault protection.
• 85 kA breaking capacity at 415 V AC for demanding fault conditions.
• Three-pole fixed configuration for permanent switchboard installation.
• Horizontal rear terminals support practical integration with switchboard busbars.

Key Features

• ABB SACE Emax E2S1600 air circuit breaker.
• 1600 A rated current.
• 3-pole configuration.
• PR123/P-LSIG electronic overcurrent release.
• LSIG protection functions: long-time, short-time, instantaneous and earth fault.
• Fixed (F) circuit-breaker execution.
• Horizontal rear (HR) terminals.
• 85 kA Icu at 415 V AC.
• 65 kA Icw for 1 second.
• Four auxiliary contacts.
• Open/closed circuit-breaker position indication.

Advanced Protection for High-Current Distribution Systems

Air circuit breakers such as the ABB E2S1600 provide switching, isolation and protection at the main and distribution levels of low-voltage electrical installations. Their high current capability, substantial short-circuit interruption performance and electronic protection technology make them particularly suitable for switchboards supplying industrial machinery, infrastructure and large commercial loads.

The PR123/P-LSIG electronic trip unit provides long-time overload, short-time delayed short-circuit, instantaneous short-circuit and earth-fault protection. Its advanced protection and measurement capabilities complement the robust SACE Emax platform, providing dependable control of critical low-voltage distribution circuits.

Typical Applications

• Main low-voltage switchboards and distribution boards.
• Industrial power distribution systems.
• Manufacturing and process plants.
• Commercial and infrastructure electrical installations.
• Transformer secondary and feeder protection.
• High-current machinery and production systems.