1SDA072560R1 ABB E4.2S 4000 Ekip G Hi-Touch LSIG 3p WMP Air Circuit Breaker 4000 A

Why Choose the ABB E4.2S 4000 Ekip G Hi-Touch LSIG 3p WMP Air Circuit Breaker?

The ABB E4.2S 4000 Ekip G Hi-Touch LSIG 3p WMP, order code 1SDA072560R1, is a high-capacity three-pole air circuit breaker (ACB) from the ABB SACE Emax 2 range, designed for advanced protection, switching and monitoring in demanding low-voltage power distribution and generator applications. With a 4000 A rated uninterrupted current and ABB's advanced Ekip G Hi-Touch LSIG electronic trip unit, it provides long-time, short-time, instantaneous and earth-fault protection.

The E4.2S combines substantial current-carrying capability with high short-circuit performance. It provides a rated ultimate short-circuit breaking capacity of 85 kA at 400–440 V AC and 66 kA at 500–690 V AC, while its rated service short-circuit breaking capacity is 100% of Icu. A rated short-time withstand current of 66 kA for 1 s supports selective protection in high-current distribution systems.

The 1SDA072560R1 is the moving part of a withdrawable circuit breaker, designed for installation with the appropriate separate chassis or fixed part. Its Ekip G Hi-Touch release combines sophisticated LSIG protection with generator-oriented functionality, advanced measurement and monitoring capabilities, making this breaker particularly suitable for installations requiring high-current protection, system visibility and serviceable withdrawable switchgear.

Key Advantages

• High-capacity 4000 A air circuit breaker for demanding low-voltage power systems.
• High 85 kA ultimate breaking capacity at 400–440 V AC.
• Advanced Ekip G Hi-Touch LSIG electronic protection with long-time, short-time, instantaneous and earth-fault functions.
• Generator-oriented Ekip G trip-unit platform for advanced power-system applications.
• 66 kA short-time withstand current for 1 s supports selective protection architectures.
• Three-pole withdrawable moving-part configuration supports convenient switchgear inspection and servicing.

Key Features

• ABB SACE Emax 2 E4.2S series.
• 4000 A rated uninterrupted current.
• Three-pole configuration.
• Ekip G Hi-Touch LSIG electronic trip unit.
• Long-time overload protection.
• Short-time selective short-circuit protection.
• Instantaneous short-circuit protection.
• Integrated earth-fault protection.
• 85 kA Icu at 400–440 V AC.
• 66 kA Icu at 500–690 V AC.
• 100% Ics relative to Icu.
• Advanced measurement and monitoring capabilities.
• Four auxiliary change-over contacts.
• Withdrawable moving-part configuration for compatible SACE Emax 2 switchgear.

Advanced Generator and Power Distribution Protection

Air circuit breakers such as the ABB SACE Emax 2 provide switching, isolation and circuit protection for high-current low-voltage electrical networks. The E4.2S combines a 4000 A current rating with 85 kA breaking capacity at 400–440 V AC and 66 kA at 500–690 V AC, making it suitable for major incoming, generator and distribution circuits where dependable fault interruption and protection coordination are required.

The Ekip G Hi-Touch LSIG electronic trip unit provides long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection within ABB's generator-oriented Ekip G platform. Combined with advanced measurement and monitoring capabilities and the withdrawable E4.2 construction, the 1SDA072560R1 is well suited to sophisticated electrical systems where protection selectivity, generator applications, system visibility and maintainability are important.

Typical Applications

• Main low-voltage electrical switchboards.
• Generator protection and power distribution systems.
• Industrial power distribution networks.
• Manufacturing and process plant switchgear.
• Commercial and infrastructure power distribution.
• Transformer and installation protection.
• High-current incoming and distribution feeders.
• Selective protection systems requiring LSIG functionality.
• Applications requiring integrated earth-fault protection.
• Withdrawable switchgear assemblies requiring advanced high-current circuit protection.