1SDA073530R1 ABB E2.2H/MS 1250 4p WMP Emax 2 Switch Disconnector 1250 A

Why Choose the ABB E2.2H/MS 1250 4p WMP Emax 2 Switch Disconnector?

The ABB E2.2H/MS 1250 4p WMP, order code 1SDA073530R1, is a high-performance four-pole air switch disconnector from the ABB SACE Emax 2 range, designed for switching and isolation duties in demanding low-voltage electrical distribution systems. Built on the E2.2 frame, this withdrawable moving part provides a 1250 A rated uninterrupted current for industrial, commercial and infrastructure power distribution applications.

As part of the advanced ABB SACE Emax 2 family, the E2.2H/MS combines substantial current capacity with high short-time withstand performance. Its H performance level provides a rated short-time withstand current of 85 kA for 1 s, making it suitable for installations where high prospective fault currents and dependable electrical isolation must be accommodated.

The E2.2H/MS 1250 4p WMP is a withdrawable four-pole moving part with a rated operational voltage of up to 690 V AC. Its four-pole arrangement is suitable for distribution systems requiring switching of the neutral alongside the three phase conductors, while the withdrawable construction facilitates inspection, servicing and replacement within compatible ABB Emax 2 switchgear.

Key Advantages

• High-performance 1250 A four-pole switch disconnector for low-voltage power distribution.
• 85 kA short-time withstand current for 1 s for demanding electrical installations.
• Rated operational voltage up to 690 V AC.
• Four-pole configuration for applications requiring phase and neutral switching.
• 1250 A AC-21 and AC-23 operational current at 400 V.
• Withdrawable moving-part construction supports convenient inspection and maintenance.
• Robust E2.2 frame designed for high-performance low-voltage switchboards.
• ABB SACE Emax 2 technology for dependable industrial and infrastructure power distribution.

Key Features

• ABB SACE Emax 2 E2.2H/MS series.
• 1250 A rated uninterrupted current (Iu).
• Four-pole configuration.
• 690 V AC rated operational voltage (Ue).
• 85 kA for 1 s rated short-time withstand current (Icw).
• 1250 A rated operational current for AC-21 at 400 V.
• 1250 A rated operational current for AC-23 at 400 V.
• Withdrawable moving-part construction.
• Designed for compatible ABB Emax 2 E2.2 fixed parts.
• Robust construction for demanding electrical distribution installations.

Reliable Four-Pole Switching and Isolation

Switch disconnectors such as the ABB E2.2H/MS provide controlled switching and dependable isolation of electrical circuits in low-voltage distribution systems. The four-pole configuration enables the device to be used in systems where the neutral conductor must be switched together with the three phase conductors, supporting comprehensive isolation of the downstream circuit.

The Emax 2 platform is designed for modern switchboards where high current capacity, strong short-time withstand performance and maintainability are important. The withdrawable E2.2H/MS moving part can be disconnected and removed from its compatible fixed section, helping simplify inspection, servicing and replacement in industrial and critical power distribution installations.

Typical Applications

• Industrial low-voltage switchboards.
• Four-pole power distribution systems.
• Main incoming and distribution switchboards.
• Commercial building electrical distribution.
• Manufacturing and process industry installations.
• High-fault-level power isolation and switching applications.
• Infrastructure and critical-power distribution systems.
• Installations requiring phase and neutral switching.