1SDA072575R1 ABB E4.2V 4000 Ekip Touch LSI 3p WMP Air Circuit Breaker

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

The ABB E4.2V 4000 Ekip Touch LSI 3p WMP, order code 1SDA072575R1, 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 breaker combines a rated current of 4000 A with the advanced Ekip Touch LSI electronic trip unit for configurable overload and short-circuit protection.

The E4.2V performance level is engineered for installations with very high prospective fault currents. Its Ekip Touch LSI electronic release provides long-time, short-time and instantaneous protection functions, with an intuitive touchscreen interface for configuring protection settings and accessing electrical measurements and breaker information.

With a rated operational voltage of 690 V AC, an ultimate short-circuit breaking capacity of 150 kA at 380–440 V AC and a rated short-time withstand current of 100 kA for 1 s, the 1SDA072575R1 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 380–440 V AC.
• 100 kA short-time withstand current for 1 s supports robust protection coordination and selectivity.
• Advanced Ekip Touch LSI electronic trip unit provides configurable overload and short-circuit 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.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 150 kA ultimate short-circuit breaking capacity at 380–440 V AC.
• 100 kA ultimate short-circuit breaking capacity at 500–690 V AC.
• 100 kA rated short-time withstand current for 1 s.
• Ekip Touch LSI electronic protection release.
• Long-time, short-time and instantaneous protection functions.
• Overload protection adjustable from 0.4–1 × In.
• Short-time selective protection adjustable from 0.6–10 × In.
• Instantaneous short-circuit protection adjustable from 1.5–15 × In.
• Touchscreen interface for protection configuration and breaker information.

Advanced LSI 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 and short-circuit 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 LSI electronic trip unit provides adjustable long-time overload protection, short-time selective short-circuit protection and instantaneous short-circuit protection. Combined with the E4.2V breaker's 150 kA breaking capacity at 380–440 V AC and 100 kA short-time withstand capability, this supports dependable protection and selective coordination within sophisticated industrial and commercial 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.
• High-current installations requiring advanced LSI protection and very high fault interruption capability.