1SDA073519R1 ABB E1.2B/MS 1000 4p WMP Switch-Disconnector

Why Choose the ABB E1.2B/MS 1000 4p WMP Switch-Disconnector?

The ABB E1.2B/MS 1000 4p WMP, order code 1SDA073519R1, is a four-pole withdrawable air switch-disconnector moving part from the ABB SACE Emax 2 range. Designed for dependable switching and isolation in low-voltage power distribution systems, it provides a rated uninterrupted current of 1000 A and a rated operational voltage of 690 V AC.

This E1.2B/MS configuration is the moving part of a withdrawable switch-disconnector, designed for installation with the corresponding Emax 2 fixed part. The withdrawable architecture supports efficient inspection, servicing and replacement, while the four-pole arrangement enables simultaneous switching and isolation of three phase conductors and the neutral where required by the installation.

With a rated insulation voltage of 1000 V AC, rated impulse withstand voltage of 12 kV and rated short-time withstand current of 42 kA for 1 s, the E1.2B/MS 1000 combines compact E1.2 construction with robust electrical performance for industrial, commercial and infrastructure distribution systems.

Key Advantages

• 1000 A rated uninterrupted current for substantial low-voltage distribution loads.
• Four-pole configuration supports switching and isolation of three-phase systems with neutral.
• Withdrawable moving-part design facilitates inspection, servicing and replacement.
• 690 V AC rated operational voltage for demanding low-voltage applications.
• Robust 42 kA short-time withstand current for 1 s.
• 12 kV impulse withstand voltage supports robust insulation performance.
• Rated for 1000 A AC-21 and AC-23 operation at 400 V.
• Part of ABB's established SACE Emax 2 low-voltage power distribution platform.

Key Features

• ABB SACE Emax 2 E1.2B/MS series.
• 1000 A rated uninterrupted current.
• Four-pole switching configuration.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 42 kA rated short-time withstand current for 1 s.
• 24 kA rated short-time withstand current for 3 s.
• Withdrawable moving part for use with the corresponding Emax 2 fixed part.
• Designed for dependable switching and isolation in low-voltage distribution assemblies.

Reliable Withdrawable Switching and Isolation

The ABB E1.2B/MS provides a dependable means of switching and electrically isolating sections of low-voltage power distribution systems. Its withdrawable construction allows the moving part to be separated from the corresponding fixed part, supporting maintenance and replacement while retaining the compact architecture and robust electrical characteristics of the SACE Emax 2 platform.

The E1.2B/MS 1000 combines a 1000 A uninterrupted current rating with 42 kA for 1 s short-time withstand capability. Its four-pole configuration makes it particularly suitable for three-phase systems requiring neutral switching, while its withdrawable construction supports switchboards where maintainability and service flexibility are important.

Typical Applications

• Low-voltage main and sub-distribution switchboards.
• Industrial three-phase power distribution systems with neutral switching.
• Commercial and infrastructure electrical installations.
• Switchboards requiring withdrawable isolation devices.
• Manufacturing and process plant distribution systems.
• Electrical assemblies requiring dependable 1000 A four-pole switching and isolation.