1SDA073134R1 ABB E4.2S 3200 Ekip Touch LI 4P Air Circuit Breaker

Why Choose the ABB 1SDA073134R1 E4.2S 3200 Ekip Touch LI Air Circuit Breaker?

The ABB 1SDA073134R1 is a high-performance SACE Emax 2 E4.2S air circuit breaker moving part designed for protection and switching in demanding low-voltage power distribution systems. This four-pole withdrawable unit has a rated current of 3200 A and incorporates an Ekip Touch LI solid-state electronic trip unit providing long-time overload and instantaneous short-circuit protection.

As part of the ABB SACE Emax 2 range, the E4.2S combines high-current switching capability with advanced electronic protection and service-friendly withdrawable construction. The Ekip Touch release provides an intuitive touch-screen interface for configuring and reviewing protection settings, giving operators straightforward access to the breaker's protection functions and operating information.

The E4.2S 3200 is rated for operation up to 690 V AC, with an E4.2S breaking-performance level of 85 kA and 66 kA across the applicable low-voltage ranges. Its four-pole configuration, 100% neutral-pole current rating and withdrawable moving-part architecture make it well suited to high-current industrial, commercial and infrastructure distribution systems.

Key Advantages

• High-capacity 3200 A SACE Emax 2 air circuit breaker for major low-voltage distribution systems.
• Ekip Touch LI electronic trip unit provides long-time overload and instantaneous short-circuit protection.
• Touch-screen interface supports intuitive configuration and access to protection information.
• Four-pole construction with the neutral pole rated at 100% of Iu.
• Rated operational voltage up to 690 V AC for demanding industrial distribution applications.
• 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.
• 3200 A rated 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 LI solid-state electronic release.
• Long-time overload and instantaneous short-circuit protection.
• Rated service short-circuit breaking capacity equal to 100% of Icu.
• Four auxiliary contacts fitted as standard on this moving part.
• Circuit-breaker open/closed position indication.
• Withdrawable construction for use with the corresponding SACE Emax 2 fixed part.

Advanced LI Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax 2 protect major low-voltage distribution circuits against damaging overloads and short circuits while providing dependable high-current switching and isolation. The Ekip Touch LI release combines long-time overload protection with instantaneous short-circuit protection, providing an effective protection configuration for applications where short-time delayed and ground-fault functions are not required.

The E4.2S platform is engineered for high-current electrical distribution and combines strong short-circuit performance with a compact, serviceable architecture. Its withdrawable design allows the moving part to be separated from the corresponding fixed section for inspection, maintenance or replacement, helping support continuity and maintainability in critical switchboard installations.

Typical Applications

• Main incoming protection for high-capacity low-voltage switchboards.
• Industrial power-distribution systems.
• Commercial and infrastructure electrical distribution.
• Transformer secondary protection.
• Generator and critical power-distribution installations.
• High-current feeders requiring overload and instantaneous short-circuit protection.