1SDA073487R1 ABB E2.2H/MS 800 3p WMP Switch-Disconnector 800 A

Why Choose the ABB E2.2H/MS 800 3p WMP Switch-Disconnector?

The ABB E2.2H/MS 800 3p WMP, order code 1SDA073487R1, is a high-performance three-pole switch-disconnector from the ABB SACE Emax 2 range, designed for high-current switching and isolation in low-voltage power distribution systems. With a rated uninterrupted current of 800 A, it combines the E2.2 frame with the H/MS performance level for demanding industrial, commercial and infrastructure installations.

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 E2.2H/MS suitable for systems where fault protection is provided by other coordinated protective devices while a robust high-current switching and isolation point is required.

This model is supplied as a three-pole withdrawable moving part for use with a compatible Emax 2 fixed part. It is rated for operation up to 690 V AC and provides a rated short-time withstand current of 85 kA for 1 s and 66 kA for 3 s, supporting demanding low-voltage distribution systems with high prospective fault currents.

Key Advantages

• High-current 800 A three-pole switch-disconnector for low-voltage power distribution.
• Part of the proven ABB SACE Emax 2 E2.2 platform.
• 85 kA short-time withstand current for 1 s for demanding electrical networks.
• Rated for operation up to 690 V AC.
• Withdrawable moving-part construction supports efficient 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.
• 800 A rated uninterrupted current.
• Three-pole configuration.
• H/MS performance level.
• Switch-disconnector configuration for switching and isolation duties.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 85 kA Icw for 1 s.
• 66 kA Icw for 3 s.
• Withdrawable moving-part version.
• 600 mm² connecting capacity.
• Mechanical durability of 25000 cycles.
• Electrical durability of 15000 cycles.

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 E2.2H/MS 800 combines an 800 A continuous current rating with an 85 kA short-time withstand capability for 1 s and operation up to 690 V AC. 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.