1SDA072576R1 ABB E4.2V 4000 Ekip Touch LSIG 3p WMP Air Circuit Breaker

Why Choose the ABB E4.2V 4000 Ekip Touch LSIG 3p WMP Air Circuit Breaker?

The ABB E4.2V 4000 Ekip Touch LSIG 3p WMP, order code 1SDA072576R1, is a high-performance SACE Emax 2 air circuit breaker (ACB) designed for protection and control in demanding high-current low-voltage power distribution systems. This three-pole withdrawable breaker combines a rated current of 4000 A with the advanced Ekip Touch LSIG electronic trip unit for comprehensive overload, short-circuit and earth-fault protection.

The E4.2V performance level is engineered for installations with very high prospective fault currents. Its Ekip Touch LSIG electronic release provides long-time, short-time, instantaneous and earth-fault protection functions, making it suitable for sophisticated electrical networks where comprehensive protection and selective coordination are required.

With a rated current of 4000 A, an ultimate short-circuit breaking capacity of 150 kA at 440 V AC and a rated short-time withstand current of 100 kA for 1 s, the 1SDA072576R1 delivers substantial fault interruption and withstand capability. Its three-pole withdrawable moving-part configuration supports efficient inspection, servicing and maintenance within compatible ABB SACE Emax 2 switchgear.

Key Advantages

• High-performance ABB SACE Emax 2 air circuit breaker for demanding low-voltage distribution systems.
• 4000 A rated current for major high-current industrial and commercial installations.
• 150 kA ultimate short-circuit breaking capacity at 440 V AC for systems with very high prospective fault currents.
• 100 kA short-time withstand current for 1 s supports robust protection coordination and selectivity.
• Advanced Ekip Touch LSIG electronic trip unit provides overload, short-circuit and earth-fault protection.
• Three-pole withdrawable design supports convenient switchboard inspection, servicing and maintenance.

Key Features

• ABB SACE Emax 2 E4.2V series.
• 4000 A rated current.
• Three-pole configuration.
• V high-performance breaking capacity class.
• 150 kA rated ultimate short-circuit breaking capacity at 440 V AC.
• 100 kA rated short-time withstand current for 1 s.
• Ekip Touch LSIG electronic protection release.
• Long-time, short-time, instantaneous and earth-fault protection functions.
• Touchscreen interface for protection configuration, measurements and breaker information.
• Withdrawable moving-part construction for compatible ABB SACE Emax 2 switchgear assemblies.

Advanced LSIG Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax 2 protect high-current low-voltage electrical systems against potentially damaging overload, short-circuit and earth-fault conditions. The E4.2V platform combines a substantial 4000 A current rating with very high fault interruption capability, making it particularly suitable for main distribution boards and installations where prospective short-circuit currents can be significant.

The Ekip Touch LSIG electronic trip unit provides long-time overload protection, short-time delayed short-circuit protection, instantaneous short-circuit protection and earth-fault protection. Combined with the E4.2V breaker's 150 kA breaking capacity at 440 V AC and 100 kA short-time withstand capability, this supports dependable protection and selective coordination within sophisticated industrial, commercial and infrastructure electrical distribution systems.

Typical Applications

• Main low-voltage electrical distribution boards.
• High-current industrial switchboards.
• Transformer secondary and distribution protection.
• Manufacturing and process plant electrical systems.
• Data centres and critical infrastructure power distribution.
• Installations requiring advanced LSIG protection, earth-fault protection and very high fault interruption capability.