1SDA071291R1 ABB E6.2H 6300 Ekip Dip LI 3p FHR Air Circuit Breaker

Why Choose the ABB E6.2H 6300 Ekip Dip LI 3p FHR Air Circuit Breaker?

The ABB E6.2H 6300 Ekip Dip LI 3p FHR, order code 1SDA071291R1, is a high-capacity air circuit breaker (ACB) designed for protection, switching and isolation in demanding low-voltage power distribution systems. Part of the ABB SACE Emax 2 range, it combines a 6300 A rated uninterrupted current with the Ekip Dip LI solid-state electronic trip unit for major industrial, infrastructure and critical-power installations.

The E6.2H performance level provides substantial fault interruption capability, with a rated ultimate short-circuit breaking capacity of 100 kA from 400–690 V AC. Its rated service short-circuit breaking capacity is 100% of Icu, while a rated short-time withstand current of 100 kA for 1 s and 3 s provides robust performance in high-fault-level electrical distribution networks.

The Ekip Dip LI electronic release provides adjustable long-time overload and instantaneous short-circuit protection. With a rated operational voltage of 690 V AC, three-pole fixed construction and rear flat horizontal terminals, the 1SDA071291R1 is engineered for high-current switchboards where dependable protection, straightforward configuration and high short-circuit performance are required.

Key Advantages

• High-capacity ABB SACE Emax 2 E6.2H air circuit breaker for demanding low-voltage power systems.
• 6300 A rated uninterrupted current for major electrical loads and very high-current switchboards.
• 100 kA Icu from 400–690 V AC provides robust short-circuit interruption capability across common low-voltage system voltages.
• 100 kA short-time withstand current for 1 s and 3 s supports demanding power-distribution applications.
• Ekip Dip LI electronic trip unit provides adjustable long-time overload and instantaneous short-circuit protection.
• 100% Ics/Icu ratio provides full rated service breaking capacity.
• Fixed three-pole construction with rear flat horizontal terminals for high-current switchboard integration.

Key Features

• ABB SACE Emax 2 E6.2H series.
• 6300 A rated uninterrupted current (Iu).
• 690 V AC rated operational voltage (Ue).
• 1000 V AC rated insulation voltage (Ui).
• 12 kV rated impulse withstand voltage (Uimp).
• 100 kA ultimate short-circuit breaking capacity from 400–690 V AC.
• 100 kA rated short-time withstand current for 1 s and 3 s.
• Ekip Dip LI solid-state electronic protection release.
• Long-time overload protection.
• Instantaneous short-circuit protection.
• Overload protection adjustment range of 2520–6300 A.
• Instantaneous short-circuit protection adjustment range of 9450–94500 A.
• Three-pole fixed-mounted construction.
• Rear flat horizontal main terminals.
• Four auxiliary contacts.
• Circuit-breaker open/closed position indication.
• Suitable for IT networks up to 690 V.

High-Current Protection with Ekip Dip LI

The ABB SACE Emax 2 E6.2H is engineered for very high-current low-voltage networks where substantial continuous-current and short-circuit capabilities are required. Its 6300 A current rating, 100 kA breaking capacity across 400–690 V AC and 100 kA short-time withstand capability make it suitable for protecting major switchboards, busbars, transformer secondary circuits and high-capacity feeders.

The Ekip Dip LI electronic trip unit combines adjustable long-time overload protection with instantaneous short-circuit protection. The long-time function protects conductors and connected equipment against sustained overcurrents, while the instantaneous function provides rapid operation during severe short-circuit conditions. This LI configuration is particularly suitable where robust core overcurrent protection is required without the additional short-time or earth-fault functions provided by LSI and LSIG releases.

Typical Applications

• Main incomer protection in very high-capacity low-voltage switchboards.
• Industrial power distribution systems.
• Transformer secondary protection.
• High-current feeder protection.
• Large commercial and infrastructure electrical installations.
• Data centres and critical-power facilities.
• Manufacturing and heavy-process plants.
• Low-voltage switchgear requiring high-current LI overcurrent protection.