1SDA073524R1 ABB E1.2N/MS 1600 4p WMP Switch-Disconnector 1600 A

Why Choose the ABB E1.2N/MS 1600 4p WMP Switch-Disconnector?

The ABB E1.2N/MS 1600 4p WMP, order code 1SDA073524R1, is a high-performance four-pole switch-disconnector from the ABB SACE Emax 2 range, designed for dependable switching and isolation in low-voltage electrical distribution systems. Supplied as the moving part of a withdrawable assembly, this E1.2 frame device combines a 1600 A rated uninterrupted current with the enhanced short-time withstand performance of the E1.2N/MS platform.

Designed for industrial, commercial and infrastructure switchboards, the E1.2N/MS provides reliable electrical isolation while retaining the installation flexibility of the Emax 2 system. Its withdrawable construction allows the moving part to be separated from its compatible fixed part, supporting efficient inspection, servicing and maintenance of critical power distribution equipment.

With a rated operational voltage of 690 V AC, a rated insulation voltage of 1000 V AC and a rated short-time withstand current of 50 kA for 1 s, the E1.2N/MS 1600 is suitable for demanding distribution environments. Its four-pole configuration enables switching and isolation across four conductors where required in three-phase and neutral systems.

Key Advantages

• High-performance ABB SACE Emax 2 switch-disconnector for low-voltage power distribution.
• 1600 A rated uninterrupted current for high-current applications.
• Four-pole configuration for applications requiring four-pole switching and isolation.
• 50 kA short-time withstand current for 1 s.
• Withdrawable moving-part design supports efficient switchboard servicing and maintenance.
• Designed for operation at up to 690 V AC.

Key Features

• ABB SACE Emax 2 E1.2N/MS series.
• 1600 A rated uninterrupted current (Iu).
• Four-pole construction.
• 690 V AC rated operational voltage (Ue).
• 1000 V AC rated insulation voltage (Ui).
• 50 kA rated short-time withstand current (Icw) for 1 s.
• 30 kA rated short-time withstand current (Icw) for 3 s.
• AC-23A utilisation category.
• 50 / 60 Hz rated frequency.
• Withdrawable moving-part (WMP) configuration.

Reliable Four-Pole Switching and Isolation

Switch-disconnectors provide a dependable means of switching and electrically isolating circuits within low-voltage power distribution systems. The ABB E1.2N/MS 1600 is based on the Emax 2 platform and is designed specifically for switching and isolation duties, providing a robust solution for installations that require high current capacity without an integrated overcurrent protection release.

The four-pole configuration is particularly suitable for distribution systems where the neutral conductor must be switched together with the three phase conductors. Combined with the withdrawable Emax 2 architecture, the E1.2N/MS provides a flexible solution for switchboards where dependable isolation, high short-time withstand capability and straightforward maintenance are important.

Typical Applications

• Main low-voltage power distribution switchboards.
• Three-phase and neutral electrical distribution systems.
• Industrial manufacturing and process facilities.
• Commercial and infrastructure electrical installations.
• Main switching and circuit isolation applications.
• Withdrawable switchgear and power distribution assemblies.