1SDA073188R1 ABB E4.2S 4000 Ekip Hi-Touch LSI 4P Air Circuit Breaker

Why Choose the ABB 1SDA073188R1 E4.2S 4000 Ekip Hi-Touch LSI Air Circuit Breaker?

The ABB 1SDA073188R1 is a high-current SACE Emax 2 E4.2S air circuit breaker moving part engineered for advanced protection, switching and monitoring in demanding low-voltage power-distribution systems. This four-pole withdrawable unit is rated at 4000 A and incorporates an Ekip Hi-Touch LSI electronic trip unit, providing long-time overload, short-time selective short-circuit and instantaneous short-circuit protection.

The Ekip Hi-Touch release combines configurable LSI protection with advanced electrical measurement and power-quality monitoring. Integrated Ekip Measuring Pro and Network Analyzer functionality supports detailed supervision of electrical parameters and power quality, while the touch-sensitive display provides intuitive access to protection settings and operating information.

With a rated operational voltage of 690 V AC, the E4.2S 4000 provides an ultimate short-circuit breaking capacity of 85 kA at 380–440 V AC and 66 kA at 500–690 V AC. Its four-pole configuration, advanced Hi-Touch protection and withdrawable moving-part construction make it well suited to major industrial, commercial and infrastructure distribution systems.

Key Advantages

• High-capacity 4000 A SACE Emax 2 air circuit breaker for major low-voltage power-distribution systems.
• Ekip Hi-Touch LSI electronic trip unit provides long-time, short-time and instantaneous overcurrent protection.
• 85 kA ultimate short-circuit breaking capacity at 380–440 V AC.
• 66 kA ultimate short-circuit breaking capacity at 500–690 V AC.
• Integrated Ekip Measuring Pro and Network Analyzer functionality supports advanced electrical and power-quality monitoring.
• Withdrawable moving-part construction facilitates inspection, servicing and replacement in compatible Emax 2 switchgear.

Key Features

• ABB SACE Emax 2 E4.2S air circuit breaker moving part.
• 4000 A rated current.
• Four-pole (4P) configuration.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 50/60 Hz operating frequency.
• Ekip Hi-Touch LSI electronic protection release.
• Long-time overload protection adjustable from 0.4–1 × In.
• Short-time selective short-circuit protection adjustable from 0.6–10 × In.
• Instantaneous short-circuit protection adjustable from 1.5–15 × In.
• 85 kA Icu at 380–440 V AC.
• 66 kA Icu at 500–690 V AC.
• Ekip Measuring Pro integrated measurement functionality.
• Integrated Network Analyzer for real-time power-quality monitoring.
• Touch-sensitive display for configuration and monitoring.
• Four auxiliary contacts supplied with the withdrawable moving part.

Advanced Hi-Touch LSI Protection for 4000 A Power Distribution

The ABB SACE Emax 2 E4.2S protects major low-voltage distribution systems against damaging overloads and short circuits while providing dependable high-current switching and isolation. Its Ekip Hi-Touch LSI release combines adjustable long-time, short-time and instantaneous protection with advanced measurement and monitoring capabilities, supporting selective protection and detailed supervision of critical electrical networks.

The E4.2S platform combines a substantial 4000 A current rating with an ultimate breaking capacity of 85 kA at 380–440 V AC and 66 kA at 500–690 V AC. The withdrawable architecture allows the moving part to be separated from its corresponding fixed section for inspection, servicing or replacement, supporting maintainability in high-capacity switchboard installations.

Typical Applications

• Main incoming protection for high-capacity low-voltage switchboards.
• Industrial power-distribution systems with high prospective fault currents.
• Commercial and infrastructure electrical distribution.
• Transformer secondary protection.
• Generator and critical power-distribution installations where LSI protection is appropriate.
• High-current feeders requiring selective overcurrent protection, advanced measurement and power-quality monitoring.