1SDA056175R1 ABB E3N 3200 PR123/P-LSIG 3200 A 4-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E3N 3200 PR123/P-LSIG Air Circuit Breaker?

The ABB E3N 3200 PR123/P-LSIG, order code 1SDA056175R1, is a high-performance SACE Emax air circuit breaker (ACB) moving part designed for switching and protection of high-current low-voltage power distribution systems. Part of the proven ABB SACE Emax E3 series, this four-pole withdrawable breaker combines a 3200 A rated current with the advanced PR123/P-LSIG electronic overcurrent release for comprehensive protection in demanding industrial and commercial installations.

The PR123/P-LSIG electronic trip unit provides long-time, short-time, instantaneous and earth-fault protection functions. The PR123/P platform provides advanced protection and measurement capabilities, making it suitable for complex distribution networks where accurate protection, monitoring and selective coordination are important.

With a rated uninterrupted current of 3200 A and E3N short-circuit performance of 65 kA, this breaker is suitable for main switchboards and high-power distribution systems. The four-pole withdrawable moving-part configuration is designed for integration with the corresponding E3 fixed part and is fitted with four auxiliary contacts and open/closed circuit-breaker position indication.

Key Advantages

• Heavy-duty 3200 A air circuit breaker for high-current power distribution.
• Advanced PR123/P-LSIG electronic overcurrent release.
• LSIG functions provide long-time, short-time, instantaneous and earth-fault protection.
• Four-pole withdrawable moving-part configuration for maintainable switchgear installations.
• 65 kA E3N short-circuit performance for demanding low-voltage distribution systems.
• Four auxiliary contacts and open/closed position indication support switchboard monitoring and control.

Key Features

• ABB SACE Emax E3N series.
• 3200 A rated uninterrupted current.
• PR123/P-LSIG electronic trip unit.
• Integrated long-time, short-time, instantaneous and earth-fault protection.
• Four-pole construction.
• Withdrawable moving part (WMP) configuration.
• 65 kA rated ultimate short-circuit breaking capacity at 415 V AC.
• 65 kA rated short-time withstand current for 1 s.
• Four auxiliary contacts.
• Integrated circuit-breaker open/closed position indication.

Advanced Protection for High-Current Power Distribution

Air circuit breakers such as the ABB E3N protect high-current low-voltage distribution circuits by interrupting the supply when electrical conditions exceed configured protection thresholds. Electronic trip technology provides accurate detection of overload, short-circuit and earth-fault conditions, helping safeguard conductors, switchgear and connected equipment.

The PR123/P-LSIG release combines comprehensive LSIG protection with the robust E3N breaker platform. Its four-pole withdrawable construction facilitates isolation, inspection and maintenance when installed with the corresponding fixed part, making this version particularly suitable for critical switchboards where advanced protection and serviceability are required.

Typical Applications

• Main low-voltage distribution switchboards.
• Industrial power distribution systems.
• Manufacturing and process plants.
• Commercial and infrastructure electrical installations.
• Transformer-fed low-voltage distribution circuits.
• Four-pole withdrawable switchgear and high-current distribution assemblies.