1SDA071277R1 ABB E6.2V 5000 Ekip G Touch LSIG 3-Pole Air Circuit Breaker

Why Choose the ABB 1SDA071277R1 E6.2V 5000 Ekip G Touch LSIG Air Circuit Breaker?

The ABB 1SDA071277R1 is a high-performance SACE Emax 2 E6.2V air circuit breaker designed for generator protection, switching and power management in demanding low-voltage electrical distribution systems. Rated at 5000 A, this three-pole fixed breaker combines the high short-circuit performance of the E6.2V frame with ABB's advanced Ekip G Touch LSIG electronic trip unit.

The Ekip G Touch LSIG protection release is specifically suited to generator applications and provides long-time overload, short-time selective short-circuit, instantaneous short-circuit and earth-fault protection. Its touchscreen interface enables intuitive configuration and monitoring while supporting the advanced protection and power-management capabilities of the ABB SACE Emax 2 platform.

The 1SDA071277R1 is supplied in a fixed three-pole configuration with rear horizontal terminals. With a rated current of 5000 A, an operating voltage range up to 690 V AC and an ultimate short-circuit breaking capacity of 150 kA at 440 V AC, it is engineered for high-current generator switchboards and critical power distribution installations.

Key Advantages

• High-current 5000 A SACE Emax 2 air circuit breaker.
• E6.2V high-breaking-capacity frame for demanding low-voltage distribution systems.
• Advanced Ekip G Touch LSIG electronic protection release optimised for generator applications.
• LSIG functions provide overload, selective short-circuit, instantaneous and earth-fault protection.
• 150 kA ultimate short-circuit breaking capacity at 440 V AC.
• 100 kA short-time withstand current for 1 s.
• Fixed three-pole construction with rear horizontal terminals.
• Suitable for generator protection, power management and critical electrical distribution.

Key Features

• ABB SACE Emax 2 E6.2V series.
• 5000 A rated uninterrupted current.
• 3-pole fixed configuration.
• Ekip G Touch LSIG electronic trip unit.
• Generator-oriented electronic protection functionality.
• Long-time overload protection (L).
• Short-time selective short-circuit protection (S).
• Instantaneous short-circuit protection (I).
• Earth-fault protection (G).
• Operating voltage range up to 690 V AC.
• 150 kA breaking capacity at 440 V AC.
• 100 kA rated short-time withstand current for 1 s.
• Rear horizontal main terminals.
• Touchscreen interface for protection configuration and monitoring.

Advanced Generator and Power Distribution Protection

Air circuit breakers such as the ABB SACE Emax 2 E6.2V provide high-current switching, isolation and fault protection for major low-voltage electrical networks. The E6.2V frame combines high short-circuit interruption performance with substantial short-time withstand capability, supporting selective coordination in complex switchboards and distribution systems.

The Ekip G Touch LSIG release extends these capabilities for generator applications, providing configurable electronic protection against overloads, delayed and instantaneous short circuits and earth faults. Its advanced monitoring and protection functions make the 1SDA071277R1 particularly suitable for generator switchboards, critical power infrastructure and installations requiring sophisticated electrical protection and power management.

Typical Applications

• Generator protection and generator switchboards.
• Industrial low-voltage power distribution systems.
• Main incomer protection in high-current switchboards.
• Emergency and standby power systems.
• High-current feeder and busbar protection.
• Manufacturing and process plants.
• Data centres and critical infrastructure.
• Large switchgear and power distribution assemblies.