1SDA073271R1 ABB E6.2H 6300 Ekip Dip LI 4p WMP Air Circuit Breaker

Why Choose the ABB E6.2H 6300 Ekip Dip LI 4p WMP Air Circuit Breaker?

The ABB E6.2H 6300 Ekip Dip LI 4p WMP, order code 1SDA073271R1, is a high-performance four-pole air circuit breaker moving part from the ABB SACE Emax 2 range, designed for protection, switching and isolation in high-current low-voltage electrical distribution systems. With a rated current of 6300 A and an Ekip Dip LI solid-state electronic trip unit, it provides dependable long-time overload and instantaneous short-circuit protection for demanding industrial, commercial and infrastructure installations.

As part of the ABB Emax 2 E6.2H series, this breaker combines very high current capability with robust short-circuit performance and a withdrawable architecture. The moving part is designed for use with a compatible Emax 2 fixed chassis, allowing the breaker to be withdrawn for inspection and maintenance while supporting service continuity in critical electrical distribution systems.

The E6.2H 6300 has a rated current of 6300 A, a 690 V AC rated operational voltage and a 1000 V AC rated insulation voltage. Its H performance class provides a rated service short-circuit breaking capacity of 100 kA, while a 12 kV rated impulse withstand voltage supports reliable operation in demanding low-voltage switchgear applications.

Key Advantages

• Very high-capacity 6300 A four-pole air circuit breaker for major low-voltage distribution systems.
• Ekip Dip LI electronic trip unit provides long-time overload and instantaneous short-circuit protection.
• 100 kA rated service short-circuit breaking capacity for high-fault-level installations.
• 690 V AC rated operational voltage supports demanding industrial power networks.
• Withdrawable moving-part design facilitates inspection, servicing and replacement.
• Four change-over auxiliary contacts and open/closed circuit breaker position indication.
• Robust mechanical endurance of 12,000 operating cycles.
• Part of the proven ABB SACE Emax 2 air circuit breaker platform.

Key Features

• ABB SACE Emax 2 E6.2H air circuit breaker.
• 6300 A rated current.
• Four-pole (4P) configuration.
• Ekip Dip LI solid-state electronic protection release.
• Long-time (L) overload protection.
• Instantaneous (I) short-circuit protection.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 100 kA rated service short-circuit breaking capacity.
• 12,000-cycle mechanical durability.
• 2,000-cycle electrical durability at operating voltages up to 690 V AC.
• Four change-over auxiliary contacts.
• Open/closed circuit breaker position indication.
• Withdrawable moving part (WMP) configuration.

High-Current Protection for Critical Power Distribution

Air circuit breakers such as the ABB Emax 2 E6.2H provide switching, isolation and electrical protection for high-current low-voltage distribution systems. The combination of a 6300 A current rating and high short-circuit performance makes this breaker particularly suitable for main incomers, transformer secondary circuits, bus couplers and major feeders in large switchboards.

The Ekip Dip LI solid-state trip unit provides long-time protection against sustained overload conditions together with instantaneous protection against severe short circuits. Combined with the Emax 2 withdrawable architecture, the E6.2H 6300 provides a practical solution for installations requiring high current capacity, reliable protection and maintainable switchgear.

Typical Applications

• Main incomers in high-current low-voltage switchboards.
• Industrial power distribution systems.
• Transformer secondary protection.
• Bus couplers and bus-tie circuit breaker applications.
• Data centres and critical power infrastructure.
• Large commercial buildings and infrastructure facilities.
• Manufacturing plants and process industries.
• Utility and energy distribution systems.
• High-current switchgear and power distribution assemblies.