1SDA071872R1 ABB E6.2V 4000 Ekip Dip LSI 4P FHR Air Circuit Breaker

Why Choose the ABB 1SDA071872R1 Emax 2 Air Circuit Breaker?

The ABB 1SDA071872R1 is a high-performance SACE Emax 2 E6.2V air circuit breaker designed for protection and switching in demanding low-voltage power distribution systems. Configured as an E6.2V 4000 Ekip Dip LSI 4p FHR, it combines a rated uninterrupted current of 4000 A with ABB's Ekip Dip LSI solid-state electronic trip unit.

This four-pole fixed circuit breaker provides comprehensive LSI protection functions, covering long-time overload, short-time delayed short-circuit and instantaneous short-circuit protection. The Ekip Dip release provides straightforward adjustable electronic protection, making the breaker well suited to high-current distribution systems requiring dependable fault protection and selective coordination.

The E6.2V high-performance frame provides a rated ultimate short-circuit breaking capacity of 150 kA at 400–440 V AC, 130 kA at 500–525 V AC and 100 kA at 690 V AC, together with a rated short-time withstand current of 100 kA for 1 s and 3 s. Its fixed four-pole construction features rear flat horizontal terminals and four change-over auxiliary contacts for integration into high-current switchboards.

Key Advantages

• High-performance ABB SACE Emax 2 E6.2V air circuit breaker for demanding low-voltage distribution systems.
• 4000 A rated uninterrupted current for high-current electrical installations.
• 150 kA ultimate short-circuit breaking capacity at 400–440 V AC.
• 100 kA short-time withstand current for 1 s and 3 s for robust fault-current performance.
• Ekip Dip LSI electronic trip unit provides adjustable long-time, short-time and instantaneous protection.
• Four-pole fixed configuration with rear flat horizontal terminals for switchboard integration.

Key Features

• ABB SACE Emax 2 E6.2V series.
• 4000 A rated uninterrupted current (Iu).
• Four-pole configuration.
• Fixed mounting construction.
• Rear flat horizontal terminals (FHR).
• Ekip Dip LSI solid-state electronic trip unit.
• LSI protection for long-time overload, short-time delayed short-circuit and instantaneous short-circuit conditions.
• 690 V AC rated operational voltage.
• 150 kA Icu at 400–440 V AC.
• Suitable for 690 V IT networks.

High-Performance LSI Protection for Low-Voltage Power Distribution

Air circuit breakers such as the ABB SACE Emax 2 protect high-current low-voltage electrical networks against overloads and short circuits while providing switching and isolation functions within power distribution assemblies. The E6.2V frame combines a 4000 A continuous-current rating with exceptional fault interruption capability, including 150 kA ultimate breaking capacity at 400–440 V AC.

The Ekip Dip LSI electronic trip unit provides adjustable long-time overload, short-time delayed short-circuit and instantaneous short-circuit protection. Combined with the robust Emax 2 architecture and 100 kA short-time withstand capability, the 1SDA071872R1 provides dependable protection for main distribution switchboards, high-current feeders and electrical systems requiring high breaking capacity and selective fault coordination.

Typical Applications

• Main incoming protection for high-current low-voltage switchboards.
• Industrial power distribution systems.
• High-current feeder protection.
• Manufacturing and process industry electrical installations.
• Commercial and infrastructure power distribution.
• Installations requiring high breaking capacity and configurable short-circuit selectivity.