1SDA072477R1 ABB E4.2V 2500 Ekip G Touch LSIG 3p WMP Air Circuit Breaker

Why Choose the ABB E4.2V 2500 Ekip G Touch LSIG 3p WMP Air Circuit Breaker?

The ABB E4.2V 2500 Ekip G Touch LSIG 3p WMP, order code 1SDA072477R1, is a high-performance three-pole air circuit breaker (ACB) moving part from the ABB SACE Emax 2 range, engineered for demanding low-voltage power distribution and generator applications. Combining the E4.2V frame with a 2500 A rated uninterrupted current and ABB's Ekip G Touch LSIG electronic trip unit, it provides comprehensive overload, short-circuit and ground-fault protection for critical industrial, infrastructure and generation systems.

This breaker uses a withdrawable construction for integration with a compatible Emax 2 fixed part, supporting efficient inspection, servicing and replacement within switchboard installations. Its Ekip G Touch LSIG solid-state electronic release combines long-time overload, short-time selective short-circuit, instantaneous short-circuit and ground-fault protection with generator-oriented functionality and an intuitive touch interface.

The E4.2V 2500 provides exceptional short-circuit performance, with an ultimate short-circuit breaking capacity of 150 kA at 400/415 V AC and 100 kA at 690 V AC. A rated short-time withstand current of 100 kA for 1 s further supports selective protection in high-fault-level installations, making the 1SDA072477R1 particularly suitable for generator switchboards, main distribution, incomers and high-current feeder applications.

Key Advantages

• High-performance ABB SACE Emax 2 air circuit breaker for demanding low-voltage distribution and generator applications.
• 2500 A rated uninterrupted current for high-current electrical systems.
• Exceptional 150 kA Icu at 400/415 V AC for installations with very high prospective fault currents.
• 100 kA Icu at 690 V AC for high-voltage low-voltage distribution applications.
• 100 kA rated short-time withstand current for 1 s supports demanding selective protection schemes.
• Ekip G Touch LSIG electronic trip unit combines comprehensive LSIG protection with generator-oriented functionality.
• Integrated ground-fault protection provides additional protection against earth-fault conditions.
• Withdrawable moving-part design supports efficient switchboard inspection, servicing and maintenance.

Key Features

• ABB SACE Emax 2 E4.2V air circuit breaker platform.
• 2500 A rated uninterrupted current.
• Three-pole circuit breaker configuration.
• Ekip G Touch LSIG solid-state electronic protection release.
• Long-time (L) overload protection.
• Short-time (S) selective short-circuit protection.
• Instantaneous (I) short-circuit protection.
• Ground-fault (G) protection.
• Generator-oriented electronic protection functionality.
• Long-time overload adjustment: 1000–2500 A.
• Short-time delayed short-circuit adjustment: 1500–25000 A.
• Instantaneous short-circuit adjustment: 3750–37500 A.
• 150 kA Icu at 400/415 V AC.
• 100 kA Icu at 690 V AC.
• 100 kA Icw for 1 s and 75 kA Icw for 3 s.
• 690 V AC rated voltage.
• Withdrawable moving-part construction for compatible Emax 2 switchgear.
• Four auxiliary change-over contacts with circuit breaker open/closed position indication.

Advanced Generator and High-Fault-Level Distribution Protection

The ABB SACE Emax 2 E4.2V platform is engineered for low-voltage networks where exceptionally high prospective fault currents demand substantial interruption and withstand capability. The 1SDA072477R1 combines a 2500 A rated uninterrupted current with an exceptional 150 kA Icu at 400/415 V AC and 100 kA Icw for 1 s, providing robust protection for high-capacity switchboards, generator systems and critical power distribution networks.

The Ekip G Touch LSIG electronic trip unit combines generator-oriented functionality with long-time overload, short-time selective short-circuit, instantaneous short-circuit and ground-fault protection. Its adjustable protection functions enable coordination with upstream and downstream protective devices while the Ekip Touch interface provides an accessible platform for configuring and supervising protection in demanding electrical installations.

Typical Applications

• Generator protection and generator switchboards.
• High-fault-level low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Large manufacturing and process plants.
• Data centres and critical power infrastructure.
• Utility and infrastructure switchgear.
• Transformer-fed distribution systems.
• High-current incomer and feeder protection.