1SDA058879R1 ABB E3V/MS 800 3P Withdrawable Switch-Disconnector

Why Choose the ABB E3V/MS 800 3P Withdrawable Switch-Disconnector?

The ABB E3V/MS 800, order code 1SDA058879R1, is a high-performance SACE Emax switch-disconnector moving part designed for reliable switching and isolation in demanding low-voltage power distribution systems. This model combines an 800 A rated current with a three-pole withdrawable configuration for integration with a compatible ABB Emax fixed part.

As part of the ABB SACE Emax E3V/MS series, the unit provides robust switching and isolation functionality without an integral electronic overcurrent protection release. The V performance level provides high short-time current withstand capability, making the E3V/MS platform suitable for industrial and commercial distribution systems where substantial prospective fault currents may be present and protection is coordinated elsewhere in the installation.

The E3V/MS 800 3P W MP configuration features three poles and a withdrawable moving part (W MP). This arrangement allows the switching unit to be withdrawn from its compatible fixed part, providing operational flexibility and convenient isolation for inspection, servicing and switchboard maintenance.

Key Advantages

• Heavy-duty 800 A SACE Emax switch-disconnector.
• Three-pole configuration for three-phase power distribution systems.
• Withdrawable moving-part design supports servicing and maintenance.
• High-performance E3V/MS platform for demanding electrical distribution applications.
• Provides dependable high-current switching and circuit isolation.
• Designed for integration with a compatible ABB SACE Emax fixed part.

Key Features

• ABB SACE Emax E3V/MS series.
• 800 A rated current.
• Three-pole (3P) construction.
• Withdrawable (W) execution.
• Moving part (MP) configuration.
• V performance level.
• Switch-disconnector design for high-current switching and isolation.
• Compatible with the appropriate E3 Emax fixed part.
• ABB order code 1SDA058879R1.

Reliable High-Current Switching and Isolation

Switch-disconnectors provide controlled switching and isolation of electrical circuits, allowing downstream equipment to be separated from the electrical supply when required. The ABB E3V/MS 800 combines this function with the robust construction of the SACE Emax platform, making it suitable for high-current distribution systems where reliable isolation is essential.

The withdrawable moving-part construction provides additional flexibility compared with a permanently fixed switching device. When installed with the appropriate Emax fixed part, the E3V/MS moving unit can be withdrawn from the switchboard connection system for maintenance, inspection or replacement while supporting efficient management of critical power distribution equipment.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• High-current circuit switching and isolation.
• Manufacturing and process plant switchgear.
• Commercial and infrastructure electrical installations.
• Three-phase feeder and busbar switching applications.