1SDA057007R1 ABB E6H 5000 PR123/P-LSIG 5000 A 4-Pole Withdrawable Air Circuit Breaker Moving Part

Why Choose the ABB 1SDA057007R1 E6H 5000 Air Circuit Breaker?

The ABB 1SDA057007R1 is a high-capacity SACE Emax E6H 5000 air circuit breaker (ACB) moving part 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 withdrawable circuit-breaker moving part combines a 5000 A rated current with the advanced PR123/P-LSIG electronic overcurrent release.

The PR123/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 busbars, conductors, switchgear and connected equipment against sustained overloads, short circuits and earth-fault conditions in critical high-current distribution systems.

With a rated permanent current of 5000 A, a four-pole withdrawable configuration and rated voltage of 690 V AC, the 1SDA057007R1 is designed as the moving part of a compatible ABB SACE Emax withdrawable circuit-breaker assembly. Its E6H performance level provides a rated ultimate short-circuit breaking capacity of 100 kA at 400 V AC, 50 Hz.

Key Advantages

• High-capacity 5000 A air circuit breaker moving part for demanding low-voltage power distribution.
• Four-pole withdrawable configuration for compatible ABB SACE Emax switchgear assemblies.
• Advanced PR123/P-LSIG R5000 electronic overcurrent release.
• LSIG functionality provides long-time, short-time, instantaneous and ground-fault protection.
• 100 kA ultimate short-circuit breaking capacity at 400 V AC, 50 Hz.
• Adjustable overload protection across the 2000–5000 A range.
• Withdrawable construction supports convenient inspection, servicing and replacement within compatible switchgear.
• Four change-over auxiliary contacts provide circuit-breaker open/closed status indication.

Key Features

• ABB SACE Emax E6H 5000 series.
• 5000 A rated permanent current.
• Four-pole circuit-breaker configuration.
• Withdrawable moving part construction.
• PR123/P-LSIG R5000 electronic overcurrent release.
• Long-time (L) overload protection.
• Short-time (S) short-circuit protection.
• Instantaneous (I) short-circuit protection.
• Integrated ground-fault (G) protection.
• 100 kA Icu at 400 V AC, 50 Hz.
• 690 V AC rated voltage.
• Overload release setting range of 2000–5000 A.
• Instantaneous short-circuit release adjustment range of 7500–75000 A.
• Four change-over auxiliary contacts.
• Open/closed circuit-breaker position indication.
• Optional motor drive capability.

Advanced LSIG Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E6H provide switching and protection for high-current low-voltage distribution networks. The electronic trip release monitors electrical conditions and initiates circuit interruption when configured protection thresholds are exceeded, helping protect switchgear, busbars, cables and connected equipment against potentially damaging overload, short-circuit and ground-fault conditions.

The PR123/P-LSIG release combines long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault protection. Together with the E6H circuit breaker's 5000 A current rating, 100 kA ultimate breaking capacity at 400 V AC and four-pole withdrawable construction, the 1SDA057007R1 is particularly suited to critical main distribution and industrial switchgear requiring comprehensive protection and convenient serviceability.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• High-current industrial power distribution systems.
• Manufacturing and process plants.
• Large 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.
• Withdrawable switchgear requiring serviceable circuit-breaker assemblies.
• Electrical systems with high prospective short-circuit currents.