1SDA059444R1 ABB E4H/f 3200 PR123/P-LSIG 3200A 4-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E4H/f 3200 PR123/P-LSIG 3200A 4-Pole Withdrawable Air Circuit Breaker?

The ABB E4H/f 3200 PR123/P-LSIG, order code 1SDA059444R1, is a high-performance 3200 A four-pole withdrawable air circuit breaker moving part designed for switching and protecting high-current low-voltage power distribution systems. As part of the proven ABB SACE Emax E4H range, this version incorporates a full-size neutral conductor and is engineered for demanding industrial, commercial and infrastructure switchgear.

This Emax circuit breaker is equipped with the advanced PR123/P-LSIG R3200 electronic trip unit, providing long-time overload (L), short-time short-circuit (S), instantaneous short-circuit (I) and earth-fault (G) protection. This comprehensive protection package supports selective coordination while helping safeguard cables, busbars, transformers, switchgear and connected equipment against a wide range of electrical fault conditions.

With a rated uninterrupted current of 3200 A, an ultimate short-circuit breaking capacity of 100 kA at 415 V AC and a short-time withstand current of 85 kA for 1 s, the E4H/f 3200 is designed for installations with substantial prospective fault levels. This model is supplied as the four-pole moving part of a withdrawable circuit breaker, allowing efficient inspection, servicing and replacement when installed with the appropriate compatible ABB SACE Emax fixed part.

Key Advantages

• Heavy-duty 3200 A air circuit breaker moving part for high-current low-voltage distribution.
• Four-pole configuration with full-size neutral conductor.
• PR123/P-LSIG R3200 electronic trip unit provides comprehensive LSIG protection.
• Integrated earth-fault protection in addition to overload and short-circuit protection.
• 100 kA ultimate short-circuit breaking capacity at 415 V AC.
• 85 kA short-time withstand current for 1 s.
• Withdrawable moving-part construction supports efficient maintenance and breaker replacement.
• Four auxiliary contacts with circuit-breaker open/closed position indication.
• Part of the established ABB SACE Emax air circuit breaker platform.

Key Features

• ABB SACE Emax E4H/f air circuit breaker moving part.
• 3200 A rated uninterrupted current.
• Four-pole construction.
• Full-size neutral conductor.
• PR123/P-LSIG R3200 electronic overcurrent release.
• Long-time overload protection (L).
• Short-time short-circuit protection (S).
• Instantaneous short-circuit protection (I).
• Earth-fault protection (G).
• Withdrawable version / moving part (W MP).
• 100 kA Icu at 415 V AC.
• 85 kA Icw for 1 s.
• Four auxiliary contacts.
• Circuit-breaker open/closed position indication.
• Designed for demanding high-current and high-fault-level power distribution applications.

Reliable Circuit Protection for Power Distribution

Air circuit breakers such as the ABB SACE Emax E4H are designed to switch and protect high-current low-voltage distribution circuits. The PR123/P electronic trip unit continuously monitors circuit conditions and initiates breaker operation when configured protection thresholds are exceeded, helping safeguard cables, busbars, transformers, switchgear and connected equipment against damaging overload, short-circuit and earth-fault conditions.

The PR123/P-LSIG release combines long-time, short-time, instantaneous and earth-fault protection with the substantial fault-current capability of the E4H frame. Combined with its 3200 A rating, four-pole full-size-neutral configuration and withdrawable construction, this breaker is particularly well suited to critical main distribution and feeder applications requiring comprehensive electronic protection and service-friendly breaker removal.

Typical Applications

• High-capacity low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Three-phase four-wire distribution systems.
• Commercial and large-building electrical distribution.
• Manufacturing and process plant switchgear.
• Transformer incomer and feeder protection.
• High-fault-level distribution systems.
• Applications requiring integrated earth-fault protection.
• Busbar and high-current circuit protection.
• Infrastructure and utility installations.