1SDA056170R1 ABB E3N3200 PR121/P-LSIG 3200A 4P Withdrawable Air Circuit Breaker

Why Choose the ABB E3N3200 PR121/P-LSIG 3200A 4P Withdrawable Air Circuit Breaker?

The ABB 1SDA056170R1 is a high-performance SACE Emax E3N air circuit breaker (ACB) moving part designed for switching and protection in demanding low-voltage electrical distribution systems. Part of the ABB New Emax product group, this four-pole withdrawable circuit breaker combines a 3200 A rated uninterrupted current with the PR121/P-LSIG R3200 electronic overcurrent release for comprehensive protection of industrial, commercial and infrastructure power networks.

The E3N3200 provides long-time, short-time, instantaneous and earth-fault protection through its LSIG trip functionality. The PR121/P electronic release protects against overload, delayed short-circuit, instantaneous short-circuit and earth-fault conditions, providing a versatile protection package for high-current distribution systems where coordinated protection and earth-fault detection are required.

With a rated uninterrupted current of 3200 A, a 690 V AC rated operational voltage and an ultimate short-circuit breaking capacity of 65 kA at 415 V AC, the E3N3200 provides robust fault protection for high-capacity switchgear. This version is a four-pole withdrawable moving part, allowing removal from a compatible ABB SACE Emax fixed part for inspection, testing, maintenance or replacement.

Key Advantages

• High-performance ABB SACE Emax E3N air circuit breaker moving part for high-current low-voltage distribution.
• 3200 A rated uninterrupted current for demanding electrical installations.
• Four-pole withdrawable configuration suitable for three-phase systems requiring neutral switching.
• PR121/P-LSIG R3200 electronic overcurrent release for comprehensive overload, short-circuit and earth-fault protection.
• LSIG functionality provides long-time, short-time, instantaneous and earth-fault protection.
• 65 kA Icu and Ics across the specified 220–690 V AC operating range.
• 65 kA short-time withstand current for 1 s and 3 s supports robust system coordination.
• Withdrawable moving-part construction facilitates inspection, testing, servicing and replacement.

Key Features

• ABB SACE Emax E3N3200 air circuit breaker moving part.
• 3200 A rated uninterrupted current.
• Four-pole construction.
• Withdrawable moving-part configuration.
• PR121/P-LSIG R3200 electronic overcurrent release.
• Long-time, short-time, instantaneous and earth-fault (LSIG) protection functions.
• 690 V AC rated operational voltage.
• 65 kA Icu at 220–690 V AC.
• 65 kA Ics at 220–690 V AC.
• 65 kA Icw for 1 s and 3 s.
• 1000 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• Four auxiliary contacts.
• Circuit-breaker open/closed position indication.

Reliable High-Current Protection with Earth-Fault Detection

Air circuit breakers such as the ABB SACE Emax E3N3200 provide switching, isolation and overcurrent protection at critical points within high-current low-voltage distribution systems. The E3 frame accommodates substantial continuous currents, while the N performance level provides dependable short-circuit interruption and short-time withstand capability for industrial switchboards, transformer-fed networks and other high-capacity distribution applications.

The PR121/P-LSIG electronic trip unit provides long-time overload, short-time overcurrent, instantaneous short-circuit and earth-fault protection. Combined with the withdrawable Emax construction and 65 kA short-circuit performance, this configuration provides comprehensive electrical protection while allowing the circuit-breaker moving part to be removed from compatible switchgear for inspection, testing, maintenance or replacement.

Typical Applications

• Main incoming circuit breakers in high-current low-voltage switchboards.
• Industrial power distribution systems requiring earth-fault protection.
• Commercial and infrastructure electrical installations.
• Manufacturing and process plants.
• Transformer-fed distribution systems.
• Generator distribution and protection systems.
• High-current distribution feeder protection.
• Four-pole distribution systems requiring neutral switching.
• Withdrawable low-voltage switchgear and power distribution assemblies.