1SDA072372R1 ABB E2.2B 2000 Ekip Dip LSI 3-Pole Air Circuit Breaker

Why Choose the ABB 1SDA072372R1 E2.2B 2000 Ekip Dip LSI Air Circuit Breaker?

The ABB 1SDA072372R1 is a SACE Emax 2 E2.2B air circuit breaker designed for switching and protection in high-current low-voltage electrical distribution systems. This three-pole withdrawable moving-part configuration has a rated current of 2000 A and incorporates the Ekip Dip LSI electronic trip unit.

The Ekip Dip LSI release provides long-time overload, short-time short-circuit and instantaneous short-circuit protection. Its LSI protection profile supports selective coordination between protective devices while providing rapid interruption of severe faults, making the breaker suitable for feeders, busbars and main distribution circuits.

The E2.2B 2000 provides a rated ultimate short-circuit breaking capacity of 42 kA at 440 V AC and a rated short-time withstand current of 42 kA for 1 s. Rated for operation up to 690 V AC, its withdrawable construction supports efficient inspection, servicing and replacement within compatible ABB Emax 2 switchgear.

Key Advantages

• 2000 A SACE Emax 2 air circuit breaker for high-current low-voltage distribution.
• Ekip Dip LSI electronic trip unit for coordinated overcurrent protection.
• Provides long-time, short-time and instantaneous protection.
• 42 kA ultimate short-circuit breaking capacity at 440 V AC.
• 42 kA rated short-time withstand current for 1 s.
• Rated operational voltage up to 690 V AC.
• Three-pole configuration for three-phase electrical distribution systems.
• Withdrawable moving-part construction supports maintainable switchboard installations.

Key Features

• ABB SACE Emax 2 E2.2B air circuit breaker.
• 2000 A rated current.
• Three-pole configuration.
• Ekip Dip LSI electronic release.
• Long-time overload protection (L).
• Short-time short-circuit protection (S).
• Instantaneous short-circuit protection (I).
• Overload protection adjustment range of 800–2000 A.
• Instantaneous protection adjustment range of 3000–30000 A.
• 42 kA ultimate short-circuit breaking capacity at 440 V AC.
• 42 kA short-time withstand current for 1 s.
• 1000 V AC rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• Four change-over auxiliary contacts.

Selective LSI Protection for High-Current Power Distribution

The ABB Emax 2 E2.2B combines 2000 A current-carrying capability with electronic LSI protection for demanding low-voltage distribution systems. Its Ekip Dip LSI release provides long-time protection against sustained overloads, short-time protection for coordinated fault clearing and instantaneous protection against severe short circuits, helping safeguard cables, busbars, switchgear and connected equipment.

The short-time protection function makes the LSI configuration particularly useful where selectivity between upstream and downstream protective devices is required. Combined with a 42 kA ultimate breaking capacity at 440 V AC, a 42 kA short-time withstand rating for 1 s and ABB's withdrawable Emax 2 architecture, the 1SDA072372R1 provides a robust and maintainable solution for high-current electrical distribution.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• Industrial power distribution networks.
• Manufacturing and process-industry switchgear.
• Commercial building electrical infrastructure.
• Transformer secondary distribution systems.
• Plant and machinery power distribution.
• Infrastructure and critical-power installations.