1SDA072927R1 ABB Emax 2 E2.2H 1000 Ekip G Touch LSIG 4-Pole Air Circuit Breaker

Why Choose the ABB 1SDA072927R1 Emax 2 Air Circuit Breaker?

The ABB 1SDA072927R1 is a high-performance Emax 2 E2.2H 1000 A four-pole air circuit breaker moving part designed for advanced protection and control in demanding low-voltage electrical distribution systems. As part of the ABB SACE Emax 2 air circuit breaker series, it combines robust withdrawable construction with the sophisticated Ekip G Touch LSIG electronic trip unit.

This E2.2H circuit breaker is engineered for industrial, commercial, infrastructure and power-generation applications requiring high short-circuit performance and comprehensive electronic protection. The Ekip G Touch LSIG release provides long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection, making it particularly suitable for complex distribution and generator protection applications.

With a rated current of 1000 A, a four-pole configuration, an ultimate short-circuit breaking capacity of 100 kA at 400–440 V AC and 85 kA at 500–690 V AC, the 1SDA072927R1 provides exceptional fault-interruption capability. Its withdrawable moving-part design enables integration with the appropriate Emax 2 E2.2 fixed part and supports efficient inspection, servicing and replacement within switchgear assemblies.

Key Advantages

• High-performance ABB Emax 2 air circuit breaker moving part for demanding low-voltage power distribution.
• 1000 A rated current for industrial, commercial and power-generation installations.
• Four-pole configuration with a neutral pole rated at 100% of rated current.
• 100 kA ultimate short-circuit breaking capacity at 400–440 V AC.
• 85 kA ultimate short-circuit breaking capacity at 500–690 V AC.
• 85 kA rated short-time withstand current for 1 s.
• Advanced Ekip G Touch LSIG electronic trip unit with integrated earth-fault protection.
• Withdrawable construction supports efficient switchboard inspection, maintenance and servicing.

Key Features

• ABB SACE Emax 2 E2.2H series.
• 1000 A rated current.
• Four-pole air circuit breaker moving part.
• Ekip G Touch LSIG electronic protection release.
• Long-time overload (L) protection.
• Short-time short-circuit (S) protection.
• Instantaneous short-circuit (I) protection.
• Earth-fault (G) protection.
• 100 kA Icu at 400–440 V AC.
• 85 kA Icu at 500–690 V AC.
• 85 kA Icw for 1 s and 66 kA Icw for 3 s.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• Withdrawable moving-part configuration for Emax 2 switchgear.
• Fitted with four changeover auxiliary contacts and circuit-breaker open/closed position indication.

Advanced LSIG Protection for Critical Power Distribution

Air circuit breakers such as the ABB Emax 2 E2.2H provide switching, isolation and protection for high-current low-voltage distribution circuits. The E2.2H performance level combines a 100 kA breaking capacity at 400–440 V AC with an 85 kA short-time withstand rating for 1 s, making it suitable for main switchboards and demanding distribution networks where high fault levels, protection selectivity and continuity of supply must be considered.

The Ekip G Touch LSIG trip unit provides long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection through ABB's advanced electronic protection platform. Combined with the E2.2H frame's high breaking capacity and withdrawable architecture, the 1SDA072927R1 provides a powerful solution for sophisticated low-voltage distribution and generator protection applications.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• Generator protection and power-generation systems.
• Industrial power distribution networks.
• Commercial and infrastructure electrical installations.
• Manufacturing and process plants.
• Transformer and generator distribution systems.
• Critical power and high-availability installations.