1SDA056618R1 ABB E3V1600 PR121/P-LSIG 1600A 4P Withdrawable Air Circuit Breaker

Why Choose the ABB E3V1600 PR121/P-LSIG 1600A 4P Withdrawable Air Circuit Breaker?

The ABB E3V1600 PR121/P-LSIG, order code 1SDA056618R1, is a high-performance SACE Emax air circuit breaker (ACB) moving part designed for switching and comprehensive protection in demanding low-voltage power distribution systems. As part of the ABB SACE Emax E3 series, this four-pole withdrawable breaker combines a 1600 A current rating with the PR121/P-LSIG R1600 electronic overcurrent release.

This E3V breaker is supplied as the moving part for a withdrawable four-pole installation, allowing convenient removal from the associated fixed part for inspection, servicing and maintenance. The PR121/P-LSIG electronic release provides long-time, short-time, instantaneous and earth-fault protection, helping safeguard electrical installations against overloads, short circuits and earth faults.

With a rated uninterrupted current of 1600 A and an ultimate short-circuit breaking capacity of 130 kA at 400–415 V AC, the E3V1600 is engineered for installations with demanding prospective fault currents. Its rated short-time withstand current of 85 kA for 1 s further supports dependable operation in high-current industrial and infrastructure distribution systems.

Key Advantages

• High-performance ABB SACE Emax E3V air circuit breaker moving part.
• 1600 A rated uninterrupted current for high-current distribution systems.
• Four-pole withdrawable configuration supports convenient servicing and maintenance.
• PR121/P-LSIG R1600 electronic overcurrent release.
• Provides long-time, short-time, instantaneous and earth-fault protection.
• High 130 kA ultimate short-circuit breaking capacity at 400–415 V AC.
• 85 kA short-time withstand current for 1 s.
• Four auxiliary contacts and open/closed position indication support switchboard monitoring.

Key Features

• ABB SACE Emax E3V series.
• 1600 A rated uninterrupted current (Iu).
• Four-pole circuit-breaker configuration.
• Withdrawable moving part construction.
• PR121/P-LSIG R1600 electronic overcurrent release.
• LSIG protection for long-time, short-time, instantaneous and earth-fault conditions.
• 130 kA Icu at 400–415 V AC.
• 100 kA Ics at 400–415 V AC.
• 100 kA Icu at 690 V AC.
• 85 kA Ics at 690 V AC.
• 85 kA Icw for 1 s.
• 65 kA Icw for 3 s.
• IP20 protection rating.
• Fitted with 2 NO + 2 NC auxiliary contacts and open/closed position indication.

Comprehensive LSIG Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E3V provide switching and overcurrent protection for high-current low-voltage distribution systems. Their high interruption capability helps protect switchboards, cables, transformers and connected electrical equipment against damaging overload, short-circuit and earth-fault conditions.

The PR121/P-LSIG electronic release combines long-time, short-time and instantaneous overcurrent protection with integrated earth-fault protection. Together with the withdrawable construction, high breaking capacity and auxiliary status contacts, the 1SDA056618R1 provides a robust and maintainable protection solution for critical industrial power-distribution systems.

Typical Applications

• Industrial low-voltage switchboards and distribution systems.
• Main incoming and feeder circuit protection.
• Transformer secondary protection.
• Manufacturing and process plants.
• Commercial and infrastructure power distribution.
• High-current installations requiring integrated earth-fault protection.