1SDA073086R1 ABB E4.2V 2000 Ekip Touch LSIG 4P Air Circuit Breaker

Why Choose the ABB 1SDA073086R1 E4.2V 2000 Ekip Touch LSIG Air Circuit Breaker?

The ABB 1SDA073086R1 is a high-performance SACE Emax 2 E4.2V air circuit breaker moving part designed for advanced protection and switching in demanding low-voltage power distribution systems. This four-pole withdrawable unit has a rated uninterrupted current of 2000 A and incorporates an Ekip 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 advanced electronic protection and service-friendly withdrawable construction. The Ekip Touch release provides an intuitive touch-screen interface for configuring protection parameters, while its LSIG functionality supports comprehensive protection and selective coordination across complex electrical distribution networks.

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 2000 is engineered for installations with exceptionally demanding prospective fault levels. Its four-pole configuration, integrated earth-fault protection and withdrawable architecture make it particularly suitable for major industrial, commercial and infrastructure switchboards.

Key Advantages

• High-capacity 2000 A SACE Emax 2 air circuit breaker for demanding low-voltage distribution systems.
• Ekip Touch LSIG electronic trip unit provides 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 with the neutral pole rated at 100% of Iu.
• 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.
• 2000 A rated uninterrupted current.
• Four-pole (4P) configuration.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• Ekip 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.
• Fitted with four change-over auxiliary contacts and circuit-breaker open/closed position indication.

Advanced LSIG 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 Touch LSIG release combines long-time overload protection with short-time delayed, instantaneous and ground-fault protection functions, enabling comprehensive and coordinated protection across complex 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 allows the moving part to be removed from its corresponding fixed section 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 selective overload, short-circuit and ground-fault protection.