1SDA073520R1 ABB E1.2N/MS 1000 4p WMP Switch-Disconnector

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

The ABB E1.2N/MS 1000 4p WMP, order code 1SDA073520R1, 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 E1.2N/MS configuration is the moving part of a withdrawable switch-disconnector and is designed for installation with the corresponding Emax 2 fixed part. Its withdrawable construction supports efficient inspection, servicing and replacement, while the four-pole arrangement enables switching and isolation of three-phase circuits together with the neutral conductor.

With a rated insulation voltage of 1000 V AC, rated short-time withstand current of 50 kA for 1 s and 30 kA for 3 s, the E1.2N/MS 1000 provides robust electrical performance for industrial, commercial and infrastructure distribution systems requiring maintainable four-pole isolation.

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 50 kA short-time withstand current for 1 s.
• 30 kA short-time withstand capability for 3 s.
• AC-23A utilisation category for demanding switching duties.
• Part of ABB's established SACE Emax 2 low-voltage power distribution platform.

Key Features

• ABB SACE Emax 2 E1.2N/MS series.
• 1000 A rated uninterrupted current.
• Four-pole switching configuration.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 50 kA rated short-time withstand current for 1 s.
• 30 kA rated short-time withstand current for 3 s.
• Withdrawable moving part for use with the corresponding Emax 2 fixed part.
• IP30 front-side protection.
• Designed to meet the isolation requirements of IEC 60947-3.

Reliable Withdrawable Switching and Isolation

ABB /MS switch-disconnectors are derived from the SACE Emax 2 platform and are designed to satisfy the isolation requirements of IEC 60947-3. When open, the switch-disconnector provides the main-contact isolation distance required to electrically isolate downstream equipment, making the E1.2N/MS suitable for dependable switching and isolation duties within low-voltage distribution assemblies.

The E1.2N/MS 1000 combines a 1000 A uninterrupted current rating with 50 kA for 1 s short-time withstand capability. Its four-pole configuration makes it suitable for three-phase systems requiring neutral switching, while the withdrawable moving-part construction supports switchboards where serviceability and equipment replacement are important considerations.

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.