1SDA072092R1 ABB E1.2B 800 Ekip Dip LSI 3p WMP Air Circuit Breaker

Why Choose the ABB E1.2B 800 Ekip Dip LSI 3p WMP Air Circuit Breaker?

The ABB E1.2B 800 Ekip Dip LSI 3p WMP, order code 1SDA072092R1, is a withdrawable Emax 2 air circuit breaker (ACB) designed for reliable protection and switching in low-voltage electrical distribution systems. As part of the ABB SACE Emax 2 series, this three-pole moving part combines an 800 A rated uninterrupted current with an Ekip Dip LSI electronic trip unit for comprehensive overload and short-circuit protection.

The compact E1.2B platform is designed for industrial and commercial switchboards requiring dependable performance and efficient use of panel space. Its Ekip Dip LSI solid-state release provides long-time, short-time and instantaneous protection functions, allowing the breaker to respond appropriately to sustained overloads as well as delayed and severe short-circuit conditions.

With a rated uninterrupted current of 800 A, a three-pole configuration, an 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, the E1.2B 800 is suited to demanding distribution applications. The WMP withdrawable moving-part configuration is designed for use with the corresponding Emax 2 fixed part, supporting convenient isolation, testing and maintenance.

Key Advantages

• Compact ABB Emax 2 air circuit breaker for low-voltage power distribution.
• 800 A rated uninterrupted current for industrial and commercial distribution circuits.
• 42 kA ultimate short-circuit breaking capacity at 440 V AC.
• 42 kA rated short-time withstand current for 1 s.
• Three-pole configuration for three-phase electrical systems.
• Reliable Ekip Dip LSI electronic trip unit.
• Long-time, short-time and instantaneous protection supports effective fault protection and coordination.
• Withdrawable moving-part construction supports convenient isolation, inspection and maintenance.

Key Features

• ABB SACE Emax 2 E1.2B air circuit breaker moving part.
• 800 A rated uninterrupted current.
• Three-pole (3P) configuration.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 42 kA Icu at 440 V AC.
• 42 kA Icw for 1 s.
• Ekip Dip LSI solid-state electronic protection release.
• Long-time protection against sustained overload conditions.
• Short-time protection for delayed short-circuit fault interruption and selective coordination.
• Instantaneous protection for rapid interruption of severe short circuits.
• Withdrawable moving part (WMP) for switchboard applications.

Selective Protection for Low-Voltage Power Distribution

Air circuit breakers such as the ABB Emax 2 E1.2B provide switching, isolation and protection for important circuits within low-voltage electrical distribution systems. The combination of an 800 A current rating and 42 kA short-circuit performance makes this model suitable for incoming supplies, distribution feeders and other applications requiring dependable fault interruption.

The Ekip Dip LSI trip unit adds short-time protection to the long-time and instantaneous functions, making it particularly useful where selective coordination between upstream and downstream protective devices is required. Long-time protection responds to sustained overloads, short-time protection provides controlled response to short-circuit conditions, and instantaneous protection rapidly interrupts severe faults. Together with the withdrawable construction, these capabilities provide a practical solution for maintainable and coordinated distribution switchboards.

Typical Applications

• Low-voltage distribution switchboards.
• Industrial power distribution systems.
• Commercial building electrical distribution.
• Incoming and outgoing feeder protection.
• Selective and coordinated distribution networks.
• Manufacturing and production facilities.
• Infrastructure and process installations.
• Withdrawable switchgear requiring convenient isolation and maintenance.