1SDA056141R1 ABB E3N2500 PR122/P-LSIG 2500 A 4P Withdrawable Air Circuit Breaker Moving Part

Why Choose the ABB E3N2500 PR122/P-LSIG Air Circuit Breaker Moving Part?

The ABB E3N2500 PR122/P-LSIG, order code 1SDA056141R1, is a four-pole withdrawable air circuit breaker moving part designed for high-current low-voltage power distribution systems. Part of the ABB SACE Emax E3 series, it is rated at 2500 A and incorporates the PR122/P-LSIG R2500 electronic overcurrent release.

The PR122/P-LSIG release provides long-time, short-time, instantaneous and ground-fault protection. These LSIG functions provide comprehensive protection against sustained overloads, short circuits and earth-fault conditions while allowing protection settings to be coordinated with the requirements of industrial, commercial and infrastructure distribution networks.

This configuration is supplied as the moving part of a withdrawable E3N2500 circuit breaker and is designed for use with the corresponding ABB SACE Emax fixed part. It incorporates four auxiliary contacts and circuit-breaker open/closed position indication, while the E3N platform provides 65 kA short-circuit breaking performance for demanding low-voltage switchgear applications.

Key Advantages

• Proven ABB SACE Emax E3N air circuit breaker platform.
• 2500 A rated current for high-capacity low-voltage distribution.
• Four-pole configuration for comprehensive switching and isolation.
• Advanced PR122/P-LSIG R2500 electronic overcurrent release.
• LSIG protection covers overload, short-circuit and ground-fault conditions.
• 65 kA short-circuit breaking capacity for demanding distribution systems.
• Withdrawable construction supports convenient isolation, inspection and servicing.
• Four auxiliary contacts support signalling and control integration.
• Open/closed position indication assists circuit-breaker status monitoring.

Key Features

• ABB SACE Emax E3N series.
• 2500 A rated current.
• Four-pole withdrawable moving part.
• PR122/P-LSIG R2500 electronic overcurrent release.
• LSIG functions: Long-time, Short-time, Instantaneous and Ground-fault protection.
• 690 V AC rated voltage.
• 65 kA short-circuit breaking capacity.
• 1000–2500 A overload adjustment range.
• 1500–25000 A short-time short-circuit adjustment range.
• 3750–37500 A instantaneous short-circuit adjustment range.
• Integrated ground-fault protection.
• Four auxiliary contacts.
• Open/closed circuit-breaker position indication.
• Optional motor operating mechanism capability.

Comprehensive LSIG Protection for High-Current Distribution

The ABB SACE Emax E3N2500 is engineered for high-capacity low-voltage distribution systems requiring dependable switching, isolation and fault protection. Its 2500 A rating and 65 kA short-circuit performance make this configuration suitable for main switchboards, transformer-fed networks, industrial plants and other installations with substantial operating and prospective fault currents.

The PR122/P-LSIG electronic release combines long-time overload protection, short-time protection for coordinated fault clearing, instantaneous protection against severe short circuits and integrated ground-fault protection. Together with the withdrawable moving-part construction, four auxiliary contacts and open/closed position indication, the E3N2500 provides comprehensive protection and practical serviceability in compatible ABB SACE Emax switchgear.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• High-current industrial power distribution systems.
• Manufacturing and process plant switchgear.
• Commercial and infrastructure electrical distribution.
• Transformer secondary distribution systems.
• Generator and standby power installations.
• Main incomer and high-current feeder protection.
• Withdrawable switchgear requiring comprehensive LSIG protection.