1SDA071733R1 ABB E4.2V 2000 Ekip Dip LSIG 4p F HR Air Circuit Breaker 2000 A

Why Choose the ABB E4.2V 2000 Ekip Dip LSIG 4p F HR Air Circuit Breaker?

The ABB E4.2V 2000 Ekip Dip LSIG 4p F HR, order code 1SDA071733R1, is a high-performance four-pole air circuit breaker (ACB) designed for protection and switching in demanding low-voltage power distribution systems. As part of the advanced ABB SACE Emax 2 series, it combines a 2000 A rated uninterrupted current with an Ekip Dip LSIG electronic protection release and the exceptional short-circuit performance of the E4.2V frame.

This fixed circuit breaker incorporates the Ekip Dip LSIG solid-state electronic trip unit, providing long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection. The comprehensive LSIG protection package supports effective coordination throughout complex electrical distribution networks, helping safeguard cables, busbars, switchgear and connected equipment against overloads, short circuits and earth faults.

With a rated operational voltage of 690 V AC, an ultimate short-circuit breaking capacity of 150 kA at 400–440 V AC and a 100 kA short-time withstand current for 1 s, the E4.2V 2000 is engineered for installations with exceptionally high prospective fault currents. This version features a fixed four-pole construction with rear flat horizontal terminals and is supplied with four auxiliary contacts and circuit-breaker open/closed position indication.

Key Advantages

• High-performance ABB SACE Emax 2 air circuit breaker for demanding low-voltage power distribution.
• 2000 A rated uninterrupted current for high-current electrical installations.
• Four-pole configuration with a neutral pole rated at 100% of Iu.
• Advanced Ekip Dip LSIG electronic trip unit with overload, short-time, instantaneous and earth-fault protection.
• 150 kA ultimate short-circuit breaking capacity at 400–440 V AC for systems with very high prospective fault currents.
• 100 kA short-time withstand current for 1 s supports selective protection in high-power distribution systems.
• 690 V AC rated operational voltage for demanding industrial electrical networks.
• Fixed configuration with rear flat horizontal terminals for switchboard installation.

Key Features

• ABB SACE Emax 2 E4.2V series.
• 2000 A rated uninterrupted current.
• Four-pole construction.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 150 kA Icu at 400–440 V AC.
• 100 kA Icu at 690 V AC.
• 100% Ics/Icu ratio.
• 100 kA short-time withstand current for 1 s.
• Ekip Dip LSIG solid-state electronic protection release.
• Long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection functions.
• Fixed circuit-breaker construction with rear flat horizontal terminals.
• Four auxiliary contacts with circuit-breaker open/closed position indication.
• Designed for high-fault-level industrial, commercial and infrastructure power distribution systems.

Comprehensive LSIG Protection for High-Fault-Level Systems

Air circuit breakers such as the ABB SACE Emax 2 protect high-current low-voltage distribution circuits against potentially damaging electrical faults. The E4.2V frame is engineered for systems with exceptionally high prospective short-circuit currents, while the Ekip Dip LSIG release provides comprehensive protection against overloads, short circuits and earth faults to help safeguard cables, busbars, switchgear and connected electrical equipment.

The Ekip Dip LSIG electronic trip unit combines long-time, short-time, instantaneous and earth-fault protection within a robust electronic release. Together with the E4.2V frame's 150 kA Icu at 400–440 V AC and 100 kA Icw for 1 s, the 1SDA071733R1 is particularly suited to main switchboards and high-power distribution systems where selective protection, earth-fault detection and exceptional fault interruption capability are required.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• High-fault-level industrial power distribution systems.
• Manufacturing and process facilities.
• Large commercial buildings and infrastructure installations.
• High-current feeder and distribution circuits.
• Transformer-fed low-voltage distribution systems.
• Systems requiring integrated earth-fault protection.
• Critical power and utility distribution installations.