1SDA056893R1 ABB E4V 3200 PR122/P-LSIG 3200 A 4-Pole Air Circuit Breaker

Why Choose the ABB 1SDA056893R1 E4V 3200 Air Circuit Breaker?

The ABB 1SDA056893R1 is a high-performance SACE Emax E4V 3200 air circuit breaker (ACB) designed for protection and switching in demanding high-current low-voltage electrical distribution systems. Part of the ABB New Emax / SACE Emax range, this four-pole fixed circuit breaker combines a 3200 A rated current with the advanced PR122/P-LSIG electronic overcurrent release.

The PR122/P-LSIG electronic trip unit provides comprehensive LSIG protection, combining long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault protection. This protection package helps safeguard conductors, busbars, switchgear and connected equipment against a wide range of electrical fault conditions while supporting coordinated protection in sophisticated power-distribution systems.

With a rated uninterrupted current of 3200 A, a four-pole fixed configuration and rear horizontal terminals, the 1SDA056893R1 is engineered for integration into high-capacity electrical switchboards. The E4V performance level provides exceptionally high short-circuit capability, including a rated ultimate short-circuit breaking capacity of 150 kA at 400 V AC, making it suitable for installations with very high prospective fault currents.

Key Advantages

• High-capacity 3200 A air circuit breaker for demanding low-voltage power distribution.
• Four-pole configuration suitable for systems requiring switching and protection across four conductors.
• Advanced PR122/P-LSIG electronic overcurrent release.
• LSIG functionality provides long-time, short-time, instantaneous and ground-fault protection.
• E4V very-high-breaking-capacity performance level for systems with substantial prospective fault currents.
• 150 kA ultimate short-circuit breaking capacity at 400 V AC.
• Fixed construction with rear horizontal terminals for permanent switchboard installation.
• Four auxiliary contacts provide circuit-breaker open/closed status signalling.

Key Features

• ABB SACE Emax E4V 3200 series.
• 3200 A rated uninterrupted current.
• Four-pole circuit-breaker configuration.
• Fixed installation version.
• PR122/P-LSIG R3200 electronic overcurrent release.
• Long-time (L) overload protection.
• Short-time (S) short-circuit protection.
• Instantaneous (I) short-circuit protection.
• Ground-fault (G) protection.
• 150 kA Icu at 400 V AC.
• Very-high-performance E4V breaking-capacity class.
• Rear horizontal main terminals.
• Four auxiliary contacts.
• Circuit-breaker open/closed position indication.

Advanced LSIG Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E4V provide switching and protection for high-current low-voltage distribution networks. The electronic trip unit monitors electrical conditions and initiates circuit interruption when configured protection thresholds are exceeded, helping protect switchgear, cables, busbars and connected equipment against potentially damaging overload, short-circuit and ground-fault conditions.

The PR122/P-LSIG release combines long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault protection. Together with the E4V circuit breaker's very high short-circuit performance, 3200 A current rating and four-pole fixed construction, this makes the 1SDA056893R1 particularly suitable for critical main distribution and industrial installations requiring comprehensive high-current circuit protection.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• Industrial power distribution systems.
• Manufacturing and process plants.
• Commercial and infrastructure electrical installations.
• Transformer secondary circuit protection.
• Main incomer and high-current feeder protection.
• Four-pole distribution systems requiring neutral switching.
• Electrical installations requiring integrated ground-fault protection.
• Systems with very high prospective short-circuit currents.