1SDA055984R1 ABB E2S 1600 PR121/P-LI 1600 A 3-Pole Fixed Air Circuit Breaker

Why Choose the ABB E2S 1600 PR121/P-LI 1SDA055984R1 Air Circuit Breaker?

The ABB 1SDA055984R1 is a high-performance SACE Emax E2S 1600 air circuit breaker (ACB) designed for reliable switching, isolation and protection in demanding low-voltage electrical distribution systems. Part of the ABB SACE Emax E2 series, this three-pole fixed circuit breaker is equipped with a PR121/P-LI R1600 electronic overcurrent release for dependable circuit protection.

With a rated uninterrupted current of 1600 A and a rated operational voltage of up to 690 V AC, the E2S 1600 is suitable for industrial switchboards, commercial power distribution, transformer protection and other high-current applications. The PR121/P-LI electronic trip unit provides long-time overload and instantaneous short-circuit protection, helping protect conductors and connected equipment against damaging overcurrent conditions.

The E2S performance level provides a rated ultimate short-circuit breaking capacity of 85 kA at 400–415 V AC and 65 kA at 500–690 V AC. This version is supplied as a three-pole fixed circuit breaker with rear horizontal terminals and includes four auxiliary contacts with open/closed position indication for integration into low-voltage switchgear.

Key Advantages

• Heavy-duty 1600 A air circuit breaker for high-current low-voltage power distribution.
• 85 kA ultimate short-circuit breaking capacity at 400–415 V AC.
• 65 kA ultimate short-circuit breaking capacity at 500–690 V AC.
• PR121/P-LI R1600 electronic overcurrent release for dependable protection.
• LI functionality provides long-time overload and instantaneous short-circuit protection.
• Three-pole fixed configuration with rear horizontal terminals for switchboard installation.
• Part of the proven ABB SACE Emax E2S air circuit breaker platform.

Key Features

• ABB SACE Emax E2S 1600 series.
• 1600 A rated uninterrupted current.
• Three-pole configuration.
• Fixed execution.
• Rear horizontal terminals.
• PR121/P-LI R1600 electronic trip unit.
• Long-time overload protection.
• Instantaneous short-circuit protection.
• 85 kA Icu at 400–415 V AC.
• 65 kA Icu at 500–690 V AC.
• 65 kA short-time withstand current for 1 s.
• Four auxiliary contacts with open/closed position indication.

Reliable Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E2S provide switching, isolation and fault protection for high-current low-voltage distribution circuits. The E2S 1600 combines a substantial continuous-current rating with high short-circuit breaking performance, making it particularly suitable for main switchboards and industrial distribution systems where dependable interruption of significant fault currents is essential.

The PR121/P-LI electronic trip unit provides long-time overload and instantaneous short-circuit protection. Combined with the fixed SACE Emax construction and rear horizontal terminals, the 1SDA055984R1 provides a robust solution for permanent switchgear installations requiring reliable electronic overcurrent protection and high breaking capacity.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• Industrial power distribution systems.
• Transformer protection and distribution.
• Generator and utility distribution systems.
• Manufacturing and process plant switchgear.
• Commercial building electrical infrastructure.
• High-fault-level electrical distribution installations.