1SDA073109R1 ABB E4.2V 2500 Ekip Hi-Touch LSIG 4P Air Circuit Breaker

Why Choose the ABB 1SDA073109R1 E4.2V 2500 Ekip Hi-Touch LSIG Air Circuit Breaker?

The ABB 1SDA073109R1 is a high-performance SACE Emax 2 E4.2V air circuit breaker moving part designed for advanced protection, switching and monitoring in demanding low-voltage power distribution systems. This four-pole withdrawable unit has a rated uninterrupted current of 2500 A and incorporates an Ekip Hi-Touch LSIG solid-state electronic trip unit providing long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault protection.

As part of the ABB SACE Emax 2 range, the E4.2V combines exceptionally high short-circuit performance with sophisticated electronic protection and monitoring capabilities. The Ekip Hi-Touch platform provides advanced protection, measurement and power-quality analysis functions, making this breaker particularly suitable for critical electrical distribution systems where detailed supervision and selective protection are required.

With a rated operational voltage of 690 V AC, a rated ultimate short-circuit breaking capacity of 150 kA at 400 V AC and a rated short-time withstand current of 100 kA for 1 s, the E4.2V 2500 is engineered for installations with exceptionally high prospective fault levels. Its four-pole configuration, LSIG protection and withdrawable architecture make it suitable for major industrial, commercial and infrastructure switchboards.

Key Advantages

• High-capacity 2500 A SACE Emax 2 air circuit breaker for demanding low-voltage distribution systems.
• Ekip Hi-Touch LSIG electronic trip unit provides comprehensive long-time, short-time, instantaneous and ground-fault protection.
• Exceptional 150 kA ultimate short-circuit breaking capacity at 400 V AC.
• 100 kA short-time withstand current for 1 s supports demanding selective protection schemes.
• Four-pole configuration suitable for three-phase systems requiring neutral switching.
• Withdrawable moving-part construction facilitates inspection, servicing and replacement in compatible Emax 2 switchgear.

Key Features

• ABB SACE Emax 2 E4.2V air circuit breaker moving part.
• 2500 A rated uninterrupted current.
• Four-pole (4P) configuration.
• 690 V AC rated operational voltage.
• Ekip Hi-Touch LSIG solid-state electronic release.
• Long-time overload protection.
• Short-time delayed short-circuit protection for selective coordination.
• Instantaneous short-circuit protection.
• Integrated ground-fault protection.
• 150 kA Icu at 400 V AC.
• 100 kA Icw for 1 s.
• Advanced electronic protection, measurement and monitoring functionality.
• Fitted with four change-over auxiliary contacts and circuit-breaker open/closed position indication.

Advanced Hi-Touch Protection for High-Fault-Level Power Distribution

Air circuit breakers such as the ABB SACE Emax 2 protect low-voltage distribution systems against damaging overloads, short circuits and earth faults while providing dependable high-current switching and isolation. The Ekip Hi-Touch LSIG release combines long-time, short-time, instantaneous and ground-fault protection with advanced measurement and monitoring capabilities, supporting comprehensive protection and supervision of critical electrical networks.

The E4.2V platform is engineered for installations with exceptionally high prospective fault currents. Its 150 kA breaking capacity at 400 V AC and 100 kA short-time withstand capability for 1 s provide robust fault-management performance, while the withdrawable architecture enables the moving part to be removed from its corresponding fixed chassis for inspection, servicing or replacement.

Typical Applications

• Main incoming protection for high-capacity low-voltage switchboards.
• Industrial power-distribution systems with high prospective fault levels.
• Commercial and infrastructure electrical distribution.
• Transformer secondary and installation protection.
• Generator and critical power-distribution installations.
• High-current feeders requiring advanced protection, monitoring and selective coordination.