1SDA073372R1 ABB E6.2V/f 6300 Ekip Dip LSI 4p WMP Air Circuit Breaker

Why Choose the ABB E6.2V/f 6300 Ekip Dip LSI 4p WMP Air Circuit Breaker?

The ABB E6.2V/f 6300 Ekip Dip LSI 4p WMP, order code 1SDA073372R1, is a high-performance SACE Emax 2 air circuit breaker (ACB) designed for protection and control of very high-current low-voltage electrical distribution systems. This four-pole E6.2 breaker combines a 6300 A rated uninterrupted current with ABB's Ekip Dip LSI electronic release, providing configurable overload and short-circuit protection for demanding industrial, commercial and infrastructure power networks.

The Ekip Dip LSI electronic trip unit provides long-time overload (L), selective short-circuit (S) and instantaneous short-circuit (I) protection. The addition of the selective short-time protection function makes this model particularly suitable for coordinated distribution systems where upstream and downstream protective devices must operate selectively during fault conditions.

The E6.2V/f 6300 delivers an ultimate short-circuit breaking capacity of 150 kA at 400 V AC and is rated for operation at 690 V AC. Supplied as a withdrawable moving part (WMP), it features a four-pole full-size neutral configuration and is designed for installation with a compatible ABB Emax 2 fixed part.

Key Advantages

• Very high 6300 A rated uninterrupted current for major low-voltage distribution systems.
• Four-pole full-size neutral configuration for three-phase four-wire applications.
• Ekip Dip LSI electronic trip unit provides three-stage overload and short-circuit protection.
• Selective short-circuit protection supports coordinated operation between upstream and downstream protective devices.
• 150 kA ultimate short-circuit breaking capacity at 400 V AC for installations with high prospective fault currents.
• Adjustable overload, short-time delayed and instantaneous short-circuit protection settings.
• Withdrawable construction supports efficient inspection, servicing and switchboard maintenance.

Key Features

• ABB SACE Emax 2 E6.2V/f air circuit breaker.
• 6300 A rated uninterrupted current.
• Four-pole full-size neutral configuration.
• Ekip Dip LSI solid-state electronic release.
• Long-time overload protection (L).
• Selective short-circuit protection (S).
• Instantaneous short-circuit protection (I).
• 690 V AC rated voltage.
• 150 kA Icu at 400 V AC.
• Overload setting adjustable from 2520–6300 A.
• Short-time delayed short-circuit setting adjustable from 3780–63000 A.
• Instantaneous short-circuit setting adjustable from 9450–94500 A.
• Four auxiliary changeover contacts.
• Circuit-breaker open/closed position indication.
• Withdrawable moving-part construction for compatible ABB Emax 2 switchgear.

Selective Protection for High-Current Power Distribution

Air circuit breakers used in major low-voltage distribution systems must safely carry substantial continuous currents while interrupting severe short-circuit faults when required. The ABB E6.2V/f 6300 combines a 6300 A continuous-current rating with 150 kA breaking performance at 400 V AC, making it suitable for main incomers, transformer secondary circuits, busbar systems and other high-capacity distribution duties.

The Ekip Dip LSI release adds selective short-time protection to the long-time overload and instantaneous protection functions. Adjustable L, S and I settings allow the protection scheme to be coordinated around the characteristics of the installation, helping downstream breakers clear appropriate faults before the main E6.2 breaker operates where selective coordination is required.

Typical Applications

• Main incomers for high-capacity low-voltage switchboards.
• Transformer secondary protection and distribution.
• High-current industrial power distribution systems.
• Manufacturing and process plant electrical infrastructure.
• Large commercial and critical infrastructure electrical systems.
• Bus couplers, high-current feeders and selectively coordinated distribution systems.