1SDA073206R1 ABB E4.2V 4000 Ekip Touch LSIG 4P Air Circuit Breaker

Why Choose the ABB 1SDA073206R1 E4.2V 4000 Ekip Touch LSIG Air Circuit Breaker?

The ABB 1SDA073206R1 is a high-performance SACE Emax 2 E4.2V air circuit breaker moving part engineered for protection and switching in demanding low-voltage power-distribution systems. This four-pole withdrawable unit is rated at 4000 A and incorporates an Ekip Touch LSIG solid-state electronic trip unit, providing long-time overload, short-time selective short-circuit, instantaneous short-circuit and ground-fault protection.

The Ekip Touch release combines configurable electronic protection with an intuitive touch interface, allowing protection parameters and operating information to be accessed directly from the trip unit. The LSIG configuration adds ground-fault protection to the long-time, short-time and instantaneous functions, providing a comprehensive protection package for critical high-current distribution circuits.

The E4.2V performance level is designed for installations with exceptionally high prospective fault currents, combining a 150 kA breaking-capacity class with a rated short-time withstand current of 100 kA for 1 s. Its 4000 A rating, four-pole configuration and withdrawable architecture make the 1SDA073206R1 particularly suitable for major incomers, transformer secondaries and high-current distribution feeders.

Key Advantages

• High-capacity 4000 A SACE Emax 2 air circuit breaker for major low-voltage power-distribution systems.
• Ekip Touch LSIG electronic trip unit provides long-time, short-time, instantaneous and ground-fault protection.
• High-performance E4.2V frame with 150 kA breaking-capacity class for installations with demanding fault levels.
• 100 kA short-time withstand current for 1 s supports demanding selective protection schemes.
• Touch interface provides convenient access to protection settings and operating information.
• Withdrawable moving-part construction facilitates inspection, servicing and replacement in compatible SACE Emax 2 switchgear.

Key Features

• ABB SACE Emax 2 E4.2V air circuit breaker moving part.
• 4000 A rated current.
• Four-pole (4P) configuration.
• 690 V AC rated operational voltage.
• Ekip Touch LSIG solid-state electronic protection release.
• Long-time overload protection.
• Short-time selective short-circuit protection.
• Instantaneous short-circuit protection.
• Integrated ground-fault protection.
• 150 kA breaking-capacity class.
• 100 kA short-time withstand current for 1 s.
• Touch-screen interface for configuration and operating information.
• Supplied with four auxiliary contacts.
• Circuit-breaker open/closed position indication.
• 900 W power loss.
• Withdrawable moving-part construction for use with the corresponding SACE Emax 2 fixed part.

High-Performance LSIG Protection for 4000 A Power Distribution

Air circuit breakers such as the ABB SACE Emax 2 protect major low-voltage distribution circuits against damaging overloads, short circuits and earth faults while providing dependable high-current switching and isolation. The Ekip Touch LSIG release combines long-time overload protection, short-time delayed protection for selective coordination, instantaneous short-circuit protection and ground-fault protection in one configurable electronic trip unit.

The E4.2V platform is engineered for installations with very high prospective fault currents. Its combination of a 4000 A current rating, 150 kA breaking-capacity class and 100 kA short-time withstand capability for 1 s provides substantial protection performance, while the withdrawable architecture enables the moving part to be removed from its corresponding fixed section for inspection, maintenance or replacement.

Typical Applications

• Main incoming protection for high-capacity low-voltage switchboards.
• Industrial distribution systems with very high prospective fault currents.
• Commercial and infrastructure power-distribution systems.
• Transformer secondary protection.
• Generator and critical power-distribution installations requiring LSIG protection.
• High-current feeders requiring selective overload, short-circuit and ground-fault protection.