1SDA072491R1 ABB E4.2N 3200 Ekip Dip LI 3p WMP Air Circuit Breaker

Why Choose the ABB E4.2N 3200 Ekip Dip LI 3p WMP Air Circuit Breaker?

The ABB E4.2N 3200 Ekip Dip LI 3p WMP, order code 1SDA072491R1, is a high-performance SACE Emax 2 air circuit breaker (ACB) designed for protection and control in high-current low-voltage power distribution systems. As part of the advanced ABB Emax 2 series, this three-pole circuit breaker combines a rated current of 3200 A with an Ekip Dip LI solid-state electronic trip unit for dependable overload and instantaneous short-circuit protection.

The E4.2N platform is developed for demanding industrial, commercial and infrastructure distribution systems where reliable high-current circuit protection is essential. Its Ekip Dip LI release provides long-time overload and instantaneous short-circuit protection, with adjustable settings that allow the protection characteristics to be matched to the electrical installation.

With a rated current of 3200 A, a rated voltage of 690 V AC and a rated ultimate short-circuit breaking capacity of 66 kA at 400 V AC, the 1SDA072491R1 is suited to substantial low-voltage distribution applications. This configuration is a three-pole withdrawable moving part fitted with four auxiliary changeover contacts and circuit-breaker open/closed position indication.

Key Advantages

• High-performance ABB SACE Emax 2 air circuit breaker for low-voltage power distribution.
• 3200 A rated current for demanding high-current installations.
• 66 kA ultimate short-circuit breaking capacity at 400 V AC.
• Ekip Dip LI electronic trip unit provides overload and instantaneous short-circuit protection.
• Adjustable protection settings allow coordination with the electrical distribution system.
• Three-pole withdrawable design supports convenient switchboard inspection and maintenance.

Key Features

• ABB SACE Emax 2 E4.2N series.
• 3200 A rated permanent current.
• Three-pole configuration.
• 690 V AC rated voltage.
• 66 kA rated ultimate short-circuit breaking capacity at 400 V AC.
• Ekip Dip LI solid-state electronic protection release.
• Long-time overload and instantaneous short-circuit protection functions.
• 1280–3200 A overload release adjustment range.
• 4800–48000 A instantaneous short-circuit release adjustment range.
• Four auxiliary changeover contacts with circuit-breaker open/closed position indication.

Reliable LI 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 E4.2N platform combines substantial current-carrying capability with electronic protection technology, making it suitable for main distribution boards, industrial switchboards and other critical electrical installations.

The Ekip Dip LI electronic release provides adjustable long-time overload protection and instantaneous short-circuit protection. Combined with the E4.2N breaker’s 3200 A current rating and withdrawable construction, this provides a robust protection solution for installations where dependable operation, straightforward servicing and effective electrical system protection are required.

Typical Applications

• Main low-voltage electrical distribution boards.
• High-current industrial switchboards.
• Transformer secondary and distribution protection.
• Manufacturing and process plant electrical systems.
• Commercial and infrastructure power distribution.
• High-current installations requiring adjustable LI electronic protection.