1SDA072591R1 ABB E6.2V 4000 Ekip Dip LI 3P WMP Air Circuit Breaker

Why Choose the ABB 1SDA072591R1 E6.2V 4000 Ekip Dip LI Air Circuit Breaker?

The ABB 1SDA072591R1 is a high-performance SACE Emax 2 E6.2V 4000 air circuit breaker moving part designed for protection and switching in demanding high-current low-voltage AC power distribution systems. Configured as an E6.2V 4000 Ekip Dip LI 3p WMP, it combines a 4000 A rated uninterrupted current, three-pole construction and ABB's Ekip Dip electronic trip unit with LI protection functions.

The E6.2V is a very-high-performance configuration within the ABB SACE Emax 2 family. At its 4000 A rating, the V performance level provides a rated ultimate short-circuit breaking capacity of 150 kA at 440 V AC and a rated short-time withstand current of 100 kA for 1 s, making it particularly suitable for installations exposed to exceptionally high prospective fault currents.

The Ekip Dip LI solid-state electronic trip unit provides long-time overload and instantaneous short-circuit protection. Its three-pole withdrawable moving-part (WMP) construction connects to a separate matching Emax 2 fixed chassis, supporting isolation, inspection, servicing and replacement within critical low-voltage switchboards.

Key Advantages

• High-performance ABB SACE Emax 2 E6.2V air circuit breaker moving part.
• 4000 A rated uninterrupted current for major low-voltage distribution circuits.
• Ekip Dip LI electronic trip unit provides overload and instantaneous short-circuit protection.
• 150 kA ultimate short-circuit breaking capacity at 440 V AC for very high prospective fault levels.
• 100 kA short-time withstand current for 1 s supports robust high-current distribution architectures.
• Three-pole withdrawable construction supports efficient isolation, servicing and switchboard maintenance.
• Four auxiliary changeover contacts support breaker-status signalling and control integration.
• Optional motor drive enables adaptation for electrically operated breaker applications.

Key Features

• ABB SACE Emax 2 E6.2 frame.
• V high short-circuit performance level.
• 4000 A rated uninterrupted current.
• Three-pole construction.
• Ekip Dip LI solid-state electronic trip unit.
• Long-time (L) overload protection.
• Instantaneous (I) short-circuit protection.
• 150 kA Icu at 440 V AC.
• 100 kA Icw for 1 s.
• Withdrawable moving-part (WMP) execution.
• Connection to separate chassis / fixed part.
• Four auxiliary changeover contacts.
• Switched-off indication.
• Optional motor drive capability.
• IP30 degree of protection.

High-Performance LI Protection for Critical Distribution

Air circuit breakers such as the ABB Emax 2 E6.2V protect high-current low-voltage networks against potentially damaging overload and short-circuit conditions. With a 4000 A rated uninterrupted current, 150 kA ultimate breaking capacity at 440 V AC and 100 kA short-time withstand capability for 1 s, the 1SDA072591R1 is engineered for major distribution points where exceptional fault-current performance is required.

The Ekip Dip LI trip unit provides two fundamental electronic protection functions. Long-time protection responds to sustained overload conditions, while instantaneous protection rapidly trips the breaker during severe short circuits. Combined with the robust E6.2V frame and withdrawable architecture, this configuration provides dependable protection together with practical maintainability for critical high-current switchboards.

Typical Applications

• Main incoming protection in high-current low-voltage switchboards.
• Industrial plants with very high prospective short-circuit currents.
• Transformer secondary protection.
• High-current distribution feeder protection.
• Data centres and critical-power installations.
• Large commercial and infrastructure electrical distribution.
• Manufacturing and process-industry switchgear.
• Utility and energy distribution installations.
• Withdrawable switchboards requiring high-performance LI protection.