1SDA073488R1 ABB E2.2N/MS 1000 3p WMP Switch-Disconnector 1000 A

Why Choose the ABB E2.2N/MS 1000 3p WMP Switch-Disconnector?

The ABB E2.2N/MS 1000 3p WMP, order code 1SDA073488R1, is a high-performance three-pole switch-disconnector from the ABB SACE Emax 2 range, designed for switching and isolation duties in low-voltage power distribution systems. With a rated uninterrupted current of 1000 A, it combines the E2.2 frame with the N/MS performance level for demanding industrial, commercial and infrastructure applications.

The MS configuration is designed primarily for switching and electrical isolation rather than the electronic overcurrent protection functions provided by Emax 2 circuit breakers equipped with Ekip trip units. This makes the E2.2N/MS suitable for installations where circuit protection is provided by other coordinated protective devices while a dependable high-current switching and isolation point is required.

This model is supplied as a three-pole withdrawable moving part for use with a compatible ABB SACE Emax 2 fixed part. It provides a rated short-time withstand current of 66 kA for 1 s and 50 kA for 3 s, supporting demanding low-voltage distribution systems with high prospective fault currents.

Key Advantages

• High-current 1000 A three-pole switch-disconnector for low-voltage power distribution.
• Part of the proven ABB SACE Emax 2 E2.2 platform.
• 66 kA short-time withstand current for 1 s for demanding electrical networks.
• 50 kA short-time withstand current for 3 s supports coordinated power distribution designs.
• Withdrawable moving-part construction supports convenient isolation, inspection and maintenance.
• Designed for installations where switching and isolation are required independently of electronic overcurrent protection.

Key Features

• ABB SACE Emax 2 E2.2 platform.
• 1000 A rated uninterrupted current.
• Three-pole configuration.
• N/MS performance level.
• Switch-disconnector configuration for switching and isolation duties.
• 66 kA Icw for 1 s.
• 50 kA Icw for 3 s.
• Withdrawable moving-part version.
• Bolted main-circuit connection.
• Optional motor operator capability.
• Optional voltage release capability.
• Interlockable construction for switchgear applications.
• IP30 degree of protection at the front.

High-Current Switching and Isolation for Power Distribution

Switch-disconnectors provide controlled switching and electrical isolation within low-voltage distribution systems. In an Emax 2 MS configuration, the device provides robust switching and isolation without the electronic overcurrent protection release normally associated with an air circuit breaker, allowing protection to be coordinated through other protective devices in the installation.

The E2.2N/MS 1000 combines a 1000 A continuous current rating with a 66 kA short-time withstand capability for 1 s and 50 kA for 3 s. Its withdrawable construction makes it particularly suitable for switchboards where maintainability, convenient isolation and high short-time withstand performance are important system requirements.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• High-current switching and isolation applications.
• Commercial and infrastructure electrical installations.
• Transformer and generator distribution systems.
• Switchgear assemblies where overcurrent protection is provided by separate protective devices.
• Incoming and outgoing circuits requiring a withdrawable isolation device.