1SDA057301R1 ABB E2B-A 1600 PR123/P-LSIG 1600A 3P Withdrawable Air Circuit Breaker

Why Choose the ABB E2B-A 1600 PR123/P-LSIG 1600A 3P Withdrawable Air Circuit Breaker?

The ABB E2B-A 1600 PR123/P-LSIG, order code 1SDA057301R1, is a high-performance SACE Emax air circuit breaker moving part designed for protection, switching and isolation in demanding low-voltage power distribution systems. This three-pole model has a rated current of 1600 A and combines ABB's E2B-A breaker platform with the advanced PR123/P electronic protection release.

The breaker is equipped with an ABB PR123/P-LSIG electronic overcurrent release, providing long-time, short-time, instantaneous and ground-fault protection. This comprehensive LSIG protection arrangement helps safeguard cables, busbars, switchgear and connected equipment against overload, short-circuit and earth-fault conditions while supporting selective coordination in complex distribution networks.

Configured as a three-pole withdrawable moving part, the E2B-A 1600 PR123/P-LSIG is designed for use with a compatible SACE Emax fixed part. The E2B-A 1600 platform provides a 42 kA short-circuit rating at 480 V AC and a 42 kA short-time current rating, while the withdrawable construction supports efficient inspection, servicing and replacement in critical switchboard installations.

Key Advantages

• High-capacity 1600 A SACE Emax air circuit breaker moving part.
• Three-pole withdrawable configuration for maintainable low-voltage switchgear.
• Advanced PR123/P-LSIG electronic overcurrent release.
• LSIG functionality provides long-time, short-time, instantaneous and ground-fault protection.
• 42 kA short-circuit rating at 480 V AC for demanding distribution applications.
• 42 kA short-time current rating.
• R1600 rating plug matched to the 1600 A breaker rating.
• Withdrawable moving-part construction simplifies inspection, servicing and replacement.

Key Features

• ABB SACE Emax E2B-A air circuit breaker.
• 1600 A rated current.
• Three-pole (3P) configuration.
• Withdrawable moving part (W / MP) version.
• PR123/P-LSIG electronic protection release.
• Long-time (L) overload protection.
• Short-time (S) short-circuit protection.
• Instantaneous (I) short-circuit protection.
• Ground-fault (G) protection.
• R1600 rating plug.
• 24000 A instantaneous protection reference.
• B short-circuit performance level.
• Four auxiliary contacts with open/closed position indication.
• Designed for UL low-voltage power circuit-breaker applications.

Advanced LSIG Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E2B-A provide switching, isolation and overcurrent protection for major low-voltage distribution circuits. The PR123/P electronic release monitors current conditions and provides comprehensive LSIG protection, allowing the breaker to respond appropriately to sustained overloads, short circuits and ground faults.

The withdrawable moving-part arrangement is particularly valuable in installations where maintainability and continuity of service are priorities. The breaker can be disconnected and withdrawn from its compatible fixed part for inspection or servicing, while its 42 kA short-circuit and short-time current ratings provide robust protection for demanding industrial distribution systems.

Typical Applications

• Industrial low-voltage switchboards.
• Main incomer circuit protection.
• High-current feeder protection.
• Manufacturing and process plants.
• Commercial and infrastructure power distribution.
• Transformer secondary distribution systems.
• Power distribution centres.
• Withdrawable low-voltage switchgear assemblies.