1SDA058880R1 ABB E3V/MS 800 800A 4-Pole Withdrawable Switch-Disconnector Moving Part

Why Choose the ABB E3V/MS 800 4-Pole Withdrawable Switch-Disconnector?

The ABB E3V/MS 800 is a high-performance 800 A four-pole switch-disconnector moving part designed for dependable switching and isolation in demanding low-voltage electrical distribution systems. Part of the ABB SACE Emax E3 series, this V-performance device combines robust high-current switching capability with a withdrawable construction for flexible integration into industrial, commercial and infrastructure switchgear.

Unlike an Emax circuit breaker equipped with an electronic protection release, the E3V/MS is a switch-disconnector intended primarily for circuit switching and isolation. It has a rated operational voltage of up to 690 V AC and a rated short-time withstand current of 85 kA for 1 s, making it suitable for distribution systems with high prospective short-circuit currents when coordinated with the appropriate upstream protection.

The 1SDA058880R1 is a four-pole withdrawable moving part (W MP) rated at 800 A. Designed for use with the corresponding SACE Emax fixed part, its withdrawable architecture supports efficient inspection, servicing and replacement while retaining the high electrical performance associated with the E3V/MS platform.

Key Advantages

• Heavy-duty ABB SACE Emax E3V/MS switch-disconnector for low-voltage power distribution.
• 800 A rated uninterrupted current for substantial industrial and commercial loads.
• Four-pole configuration for simultaneous switching and isolation of four conductors.
• Withdrawable moving-part design supports efficient inspection, servicing and replacement.
• High 85 kA short-time withstand current for 1 s.
• Rated for operation at up to 690 V AC.
• High 1000 V insulation voltage and 12 kV impulse withstand voltage.
• Long mechanical and electrical operating endurance for demanding switchgear applications.

Key Features

• ABB SACE Emax E3V/MS 800 switch-disconnector.
• 800 A rated current.
• Four-pole construction.
• Withdrawable (W) moving part (MP) configuration.
• V short-circuit performance level.
• 690 V AC rated operational voltage.
• 1000 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 85 kA for 1 s rated short-time withstand current.
• 65 kA for 3 s rated short-time withstand current.
• Designed for compatible SACE Emax withdrawable fixed parts.
• IEC-compliant low-voltage switching platform.

High-Performance Switching and Isolation for Power Distribution

Switch-disconnectors such as the ABB E3V/MS provide a dependable means of making, carrying and isolating high-current electrical circuits. The V-performance E3 frame offers particularly high short-time withstand capability, allowing the device to remain thermally and dynamically stable during substantial short-circuit currents while the associated protective equipment clears the fault.

The withdrawable E3V/MS 800 moving part can be separated from its compatible fixed part for servicing or replacement, making it particularly suitable for switchgear where maintainability is important. Its four-pole construction, 800 A current rating and 85 kA one-second withstand capability provide a robust solution for demanding low-voltage distribution assemblies.

Typical Applications

• Main low-voltage distribution switchboards.
• Industrial power distribution systems.
• Main and feeder switching applications.
• Four-pole electrical isolation.
• Manufacturing and process plants.
• Commercial and infrastructure electrical installations.
• Withdrawable switchgear and power distribution centres.
• High-fault-level distribution systems requiring strong short-time withstand performance.