1SDA071871R1 ABB E6.2V 4000 Ekip Dip LI 4p FHR Air Circuit Breaker

Why Choose the ABB E6.2V 4000 Ekip Dip LI 4p FHR Air Circuit Breaker?

The ABB E6.2V 4000 Ekip Dip LI 4p FHR, order code 1SDA071871R1, is a high-performance four-pole air circuit breaker (ACB) designed for protection, switching and isolation in demanding low-voltage power distribution systems. As part of the ABB SACE Emax 2 series, it combines a substantial 4000 A rated current with very high short-circuit performance for industrial, commercial and infrastructure installations.

This Emax 2 circuit breaker incorporates the Ekip Dip LI solid-state electronic trip unit, providing long-time overload and instantaneous short-circuit protection. The LI protection functions provide dependable protection against sustained overcurrents and severe short-circuit faults, helping safeguard switchgear, cables and connected equipment.

The E6.2V 4000 is a fixed, four-pole breaker with rear flat horizontal terminals. It is rated for operation at up to 690 V AC and provides an ultimate short-circuit breaking capacity of 150 kA at 400–440 V AC, 130 kA at 500 V AC and 100 kA at 690 V AC, making it particularly suitable for high-fault-level main distribution systems.

Key Advantages

• High-capacity 4000 A air circuit breaker for demanding low-voltage power distribution.
• Four-pole configuration for comprehensive switching and isolation.
• Ekip Dip LI electronic trip unit provides long-time overload and instantaneous short-circuit protection.
• Exceptional 150 kA ultimate short-circuit breaking capacity at 400–440 V AC.
• 100 kA short-time withstand current supports demanding high-fault-current installations.
• Fixed installation for permanent integration into low-voltage switchboards.
• Rear flat horizontal terminals facilitate connection to high-current busbar systems.
• Four auxiliary change-over contacts provide additional status and control integration.

Key Features

• ABB SACE Emax 2 E6.2V air circuit breaker.
• 4000 A rated uninterrupted current.
• Four-pole configuration.
• Ekip Dip LI solid-state trip unit.
• Long-time overload (L) protection.
• Instantaneous short-circuit (I) protection.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 150 kA ultimate and service short-circuit breaking capacity at 400–440 V AC.
• 100 kA ultimate and service short-circuit breaking capacity at 690 V AC.
• 100 kA rated short-time withstand current for 1 s and 3 s.
• Fixed construction with rear flat horizontal terminals.
• Four auxiliary change-over contacts with circuit-breaker open/closed position indication.

High-Performance Circuit Protection for Power Distribution

Air circuit breakers such as the ABB SACE Emax 2 E6.2V provide protection, switching and isolation for high-current low-voltage electrical networks. By detecting overload and severe short-circuit conditions, the breaker can disconnect the affected circuit to help protect cables, switchgear and connected equipment while supporting safe and dependable power distribution.

The E6.2V performance level is designed for installations with particularly high prospective fault currents. Combined with the Ekip Dip LI trip unit, 4000 A current rating and breaking capacity of up to 150 kA, the 1SDA071871R1 provides a robust solution for critical incoming supplies and high-power distribution systems.

Typical Applications

• Industrial low-voltage main distribution switchboards.
• Manufacturing plants and production facilities.
• Commercial building electrical distribution systems.
• Data centres and critical power infrastructure.
• Utilities and infrastructure installations.
• Generator and transformer distribution systems.
• High-fault-level incoming supply protection.
• Main and feeder circuits in high-current low-voltage switchgear.