1SDA072687R1 ABB E1.2B 630 Ekip G Touch LSIG 4P Air Circuit Breaker

Why Choose the ABB 1SDA072687R1 Emax 2 Air Circuit Breaker?

The ABB 1SDA072687R1 is a high-performance SACE Emax 2 E1.2B air circuit breaker designed for protection, control and management of low-voltage electrical distribution and generator systems. Configured as an E1.2B 630 Ekip G Touch LSIG 4p WMP, this four-pole withdrawable moving part combines a 630 A rated current with ABB's advanced Ekip G Touch electronic protection release.

As part of the ABB SACE Emax 2 range, the breaker provides comprehensive protection against overloads, selective short circuits, instantaneous short circuits and earth faults. The Ekip G Touch LSIG trip unit is specifically equipped with generator protection functionality and advanced electrical measurement capabilities, making this model particularly suitable for generating sets and sophisticated power distribution installations.

The E1.2B performance level provides a rated ultimate short-circuit breaking capacity of 42 kA across key AC operating voltages up to 690 V AC. Its withdrawable four-pole construction is designed for use with the appropriate Emax 2 fixed part, supporting convenient isolation, inspection and maintenance within low-voltage switchboards.

Key Advantages

• Advanced ABB SACE Emax 2 air circuit breaker for low-voltage power distribution and generator protection.
• 630 A rated current for industrial and commercial electrical installations.
• 42 kA ultimate short-circuit breaking capacity for robust fault protection.
• Advanced Ekip G Touch LSIG electronic protection release.
• Integrated long-time, short-time, instantaneous and earth-fault protection functions.
• Four-pole withdrawable moving-part design for switchboard applications.
• Rated operational voltage up to 690 V AC.
• Generator-specific protection functions and integrated measurement capabilities.

Key Features

• ABB SACE Emax 2 E1.2B series.
• 630 A rated uninterrupted current.
• 4-pole configuration.
• Ekip G Touch LSIG electronic release.
• 42 kA Icu at 400–440 V AC.
• 42 kA short-time withstand current for 1 s.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• Adjustable overload, selective short-circuit, instantaneous and earth-fault protection.
• Integrated Ekip Measuring Pro measurement functionality.
• Touchscreen interface for protection configuration and monitoring.
• Four auxiliary contacts and circuit-breaker open/closed position indication.
• Withdrawable moving-part construction for use with a corresponding fixed part.

Advanced Generator and Circuit Protection

Air circuit breakers such as the ABB SACE Emax 2 E1.2B protect low-voltage electrical systems against overloads, short circuits and earth faults while providing reliable switching and isolation. The E1.2B's 42 kA breaking capacity enables it to interrupt substantial prospective fault currents and protect switchboards, conductors, generators and connected equipment.

The Ekip G Touch LSIG electronic trip unit is designed to meet the demanding protection requirements of generator and power distribution applications. Adjustable protection settings, generator-specific functions and integrated Ekip Measuring Pro capabilities allow the breaker to provide sophisticated protection, measurement and system supervision within modern electrical installations.

Typical Applications

• Generator and generating-set protection.
• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Commercial building electrical distribution.
• Manufacturing and process facilities.
• Critical infrastructure and standby power systems.
• Power management and energy monitoring installations.
• Switchboards requiring four-pole withdrawable circuit breakers.