1SDA072475R1 ABB E4.2V 2500 Ekip Touch LSI 3-Pole Air Circuit Breaker

Why Choose the ABB 1SDA072475R1 E4.2V 2500 Ekip Touch LSI Air Circuit Breaker?

The ABB 1SDA072475R1 is a high-performance SACE Emax 2 E4.2V 2500 air circuit breaker moving part designed for protection and switching in demanding low-voltage electrical distribution systems. This three-pole configuration combines a 2500 A rated uninterrupted current with an advanced Ekip Touch LSI electronic trip unit, providing configurable overload and short-circuit protection for industrial, commercial and infrastructure power systems.

As part of the ABB SACE Emax 2 range, the E4.2V is engineered for installations requiring exceptionally high short-circuit performance. The Ekip Touch LSI trip unit provides long-time, short-time and instantaneous protection functions, while its touchscreen interface supports convenient configuration and monitoring of the circuit breaker's protection settings.

This model is a 3-pole withdrawable moving part (WMP) rated at 2500 A. The E4.2V performance level provides a rated ultimate short-circuit breaking capacity of 150 kA at 440 V AC together with a rated short-time withstand current of 100 kA for 1 s, making it particularly suitable for high-fault-level switchboards and critical power distribution installations.

Key Advantages

• High-performance ABB SACE Emax 2 air circuit breaker for demanding low-voltage power distribution.
• 2500 A rated uninterrupted current for high-current industrial and infrastructure applications.
• Ekip Touch LSI electronic trip unit with touchscreen interface.
• LSI functionality provides long-time, short-time and instantaneous protection.
• Exceptional short-circuit performance with 150 kA Icu at 440 V AC.
• 100 kA rated short-time withstand current for 1 s supports demanding protection and selectivity requirements.
• 3-pole withdrawable moving-part design facilitates switchboard inspection, servicing and maintenance.

Key Features

• ABB SACE Emax 2 E4.2V frame.
• 2500 A rated uninterrupted current.
• 3-pole configuration.
• Ekip Touch LSI electronic trip unit.
• Long-time L overload protection.
• Short-time S short-circuit protection.
• Instantaneous I short-circuit protection.
• Touchscreen-based Ekip Touch user interface.
• 150 kA rated ultimate short-circuit breaking capacity at 440 V AC.
• 100 kA rated short-time withstand current for 1 s.
• Withdrawable moving part (WMP) configuration.

High-Performance Protection for Critical Power Distribution

Air circuit breakers such as the ABB SACE Emax 2 E4.2V provide switching and protection for high-current low-voltage distribution circuits. The electronic trip unit monitors circuit conditions and initiates interruption when configured protection thresholds are exceeded, helping protect switchgear, conductors and connected equipment against damaging overload and short-circuit currents.

The Ekip Touch LSI release combines long-time overload protection with short-time and instantaneous short-circuit protection. Together with the E4.2V frame's exceptionally high breaking performance and withdrawable architecture, the 1SDA072475R1 provides a powerful solution for switchboards where high fault-current capability, protection coordination and maintainability are important.

Typical Applications

• Main incoming protection in high-current low-voltage switchboards.
• Industrial power distribution systems.
• Transformer secondary distribution and protection.
• High-fault-level feeder protection.
• Commercial and infrastructure electrical distribution.
• Power generation and critical power systems.
• Power distribution centres and large electrical installations.