1SDA072747R1 ABB E1.2N 800 Ekip G Touch LSIG 4p WMP Air Circuit Breaker

Why Choose the ABB E1.2N 800 Ekip G Touch LSIG 4p WMP Air Circuit Breaker?

The ABB 1SDA072747R1 is a SACE Emax 2 E1.2N air circuit breaker (ACB) engineered for generator protection and advanced low-voltage power distribution. Rated at 800 A, this four-pole breaker combines ABB’s compact E1.2N frame with an Ekip G Touch LSIG solid-state electronic trip unit, providing long-time overload, short-time delayed, instantaneous short-circuit and earth-fault protection.

The Ekip G Touch release is specifically designed to extend Emax 2 protection capabilities for generator applications. In addition to LSIG circuit protection, it incorporates generator-specific protection functions and advanced electrical measurement capabilities, making the breaker suitable for generating sets, emergency power systems and installations where generator protection must be integrated with the main low-voltage distribution architecture.

The 1SDA072747R1 is a four-pole withdrawable mobile part (WMP) with a rated uninterrupted current of 800 A and rated operational voltage of 690 V AC. Its E1.2N performance level provides an ultimate short-circuit breaking capacity of 66 kA at 380–440 V AC and 50 kA at 500–690 V AC, together with a rated short-time withstand current of 50 kA for 1 second.

Key Advantages

• 800 A rated uninterrupted current for generator and low-voltage distribution protection.
• 690 V AC rated operational voltage for a wide range of LV power systems.
• 66 kA ultimate short-circuit breaking capacity at 380–440 V AC.
• 50 kA short-circuit breaking capacity at 500–690 V AC.
• 50 kA short-time withstand current for 1 second supports selective protection strategies.
• Ekip G Touch LSIG electronic trip unit combines comprehensive circuit protection with generator-specific functionality.
• Integrated earth-fault protection provides additional protection for distribution and generator circuits.
• Four-pole configuration suits three-phase four-wire systems requiring neutral switching.
• Withdrawable mobile-part construction facilitates isolation, servicing and switchboard maintenance.

Key Features

• ABB SACE Emax 2 E1.2N series.
• 800 A rated uninterrupted current.
• 690 V AC rated operational voltage.
• Four-pole configuration.
• N short-circuit performance level.
• 66 kA Icu at 380–440 V AC.
• 50 kA Icu at 500–690 V AC.
• 50 kA Icw for 1 second.
• Ekip G Touch LSIG solid-state electronic trip unit.
• LSIG protection provides long-time overload, short-time delayed, instantaneous short-circuit and earth-fault protection.
• 320–800 A long-time overload protection adjustment.
• 480–8000 A short-time selective short-circuit protection adjustment.
• 1200–12000 A instantaneous short-circuit protection adjustment.
• 80–800 A earth-fault protection adjustment.
• Generator-specific protection functions integrated into the Ekip G Touch platform.
• Ekip Measuring Pro measurement functionality integrated into the trip unit.
• Touch-sensitive display for configuration and monitoring.
• Withdrawable mobile part (WMP) configuration.
• Four auxiliary contacts with circuit-breaker open/closed position indication.

Advanced Generator and LSIG Protection

The ABB SACE Emax 2 E1.2N combines high-performance circuit interruption with generator-oriented electronic protection. Its 800 A current rating, 66 kA breaking capacity at 380–440 V AC and 50 kA short-time withstand capability for 1 second make it suitable for installations where robust fault-current performance must be combined with selective protection and generator supervision.

The Ekip G Touch LSIG trip unit provides adjustable long-time, short-time, instantaneous and earth-fault protection while adding generator-specific protection functions and integrated measurement capabilities. This makes the 1SDA072747R1 particularly suitable for generator incomers, standby generating systems, distributed generation installations and low-voltage power networks where generator operation and distribution protection must be coordinated.

Typical Applications

• Generator protection and generator incomer switchboards.
• Standby and emergency generating systems.
• Low-voltage main and sub-distribution switchboards.
• Three-phase four-wire electrical distribution systems.
• Industrial power generation and distribution systems.
• Commercial and infrastructure backup-power installations.
• Critical-power and continuity-of-supply applications.
• Distributed generation and local energy systems.
• Systems requiring selective short-circuit and earth-fault protection.
• Switchboards requiring withdrawable four-pole circuit breaker construction.