1SDA072762R1 ABB E1.2B 1000 Ekip Dip LSI 4P Air Circuit Breaker

Why Choose the ABB 1SDA072762R1 Emax 2 Air Circuit Breaker?

The ABB 1SDA072762R1 is a high-performance SACE Emax 2 E1.2B air circuit breaker designed for reliable protection and control of low-voltage electrical distribution systems. Configured as an E1.2B 1000 Ekip Dip LSI 4p WMP, this four-pole withdrawable moving part combines a 1000 A rated current with ABB's Ekip Dip LSI electronic protection release.

As part of the ABB SACE Emax 2 air circuit breaker series, the E1.2B is engineered for industrial, commercial and infrastructure power distribution applications. The Ekip Dip LSI trip unit provides long-time overload, short-time selective short-circuit and instantaneous short-circuit protection, giving the breaker a versatile three-stage overcurrent protection arrangement.

The E1.2B performance level provides a rated ultimate short-circuit breaking capacity of 42 kA at 415 V AC. Its 1000 A rating, four-pole configuration and withdrawable construction make the 1SDA072762R1 well suited to substantial switchboard applications where dependable fault interruption, protection selectivity and convenient maintenance are required.

Key Advantages

• High-performance ABB SACE Emax 2 air circuit breaker for low-voltage power distribution.
• 1000 A rated current for substantial industrial and commercial electrical loads.
• 42 kA ultimate short-circuit breaking capacity at 415 V AC.
• Ekip Dip LSI electronic protection release for configurable overcurrent protection.
• Integrated long-time, short-time and instantaneous protection functions.
• Short-time protection supports improved selectivity between upstream and downstream protective devices.
• Four-pole configuration for switching and protecting three-phase systems with neutral.
• Withdrawable moving-part construction supports convenient isolation, inspection and maintenance.

Key Features

• ABB SACE Emax 2 E1.2B series.
• 1000 A rated current.
• 4-pole configuration.
• Ekip Dip LSI electronic trip unit.
• 42 kA Icu at 415 V AC.
• Long-time overload protection.
• Short-time selective short-circuit protection.
• Instantaneous short-circuit protection.
• DIP-switch interface for straightforward protection configuration.
• LSI protection architecture suitable for selective low-voltage distribution systems.
• Withdrawable construction simplifies breaker isolation and servicing.
• Moving-part design for use with the corresponding Emax 2 fixed part.

Selective Circuit Protection for Power Distribution

Air circuit breakers such as the ABB SACE Emax 2 E1.2B protect low-voltage electrical distribution systems against potentially damaging overload and short-circuit conditions. With a 42 kA ultimate short-circuit breaking capacity at 415 V AC, this E1.2B configuration provides dependable fault interruption for switchboards, feeders and connected electrical equipment.

The Ekip Dip LSI electronic trip unit adds short-time protection between the long-time overload and instantaneous protection stages. This allows greater coordination and selectivity within a distribution system, helping downstream protective devices clear localised faults before an upstream main breaker operates where the installation has been appropriately designed and configured.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Commercial building electrical distribution.
• Manufacturing and process facilities.
• Infrastructure and utility installations.
• Incoming and outgoing switchboard feeders.
• Distribution systems requiring selective LSI overcurrent protection.
• Switchboards requiring four-pole withdrawable circuit breaker assemblies.