1SDA059343R1 ABB E2S/MS 1000 1000A 4P Fixed Switch-Disconnector

Why Choose the ABB E2S/MS 1000 1000A 4P Fixed Switch-Disconnector?

The ABB 1SDA059343R1 is a robust SACE Emax E2S/MS switch-disconnector designed for high-current switching and isolation in low-voltage power distribution systems. Rated at 1000 A, this four-pole device combines fixed installation with rear flat horizontal terminals for integration into industrial and commercial switchboards.

Part of the ABB SACE Emax family, the E2S/MS 1000 is intended for applications requiring dependable circuit switching and isolation rather than automatic overcurrent protection from an electronic trip unit. Its four-pole configuration enables simultaneous switching of three phase conductors and the neutral, making it particularly suitable for distribution systems where complete four-pole isolation is required.

The E2S/MS 1000 has a rated operational voltage of 690 V AC, rated insulation voltage of 1000 V and rated impulse withstand voltage of 12 kV. A rated short-time withstand current of 65 kA for 1 s provides the robust performance required in demanding high-current distribution assemblies.

Key Advantages

• Heavy-duty 1000 A SACE Emax switch-disconnector for low-voltage distribution.
• Four-pole construction supports simultaneous phase and neutral switching.
• Fixed configuration provides a robust solution for permanent switchboard installations.
• Rear flat horizontal terminals facilitate integration with switchboard busbar systems.
• 65 kA short-time withstand current for 1 s for demanding distribution applications.
• 690 V AC rated operational voltage suitable for industrial low-voltage systems.
• High electrical and mechanical durability supports long-term industrial service.

Key Features

• ABB SACE Emax E2S/MS series.
• 1000 A rated current.
• Four-pole construction.
• Fixed (F) configuration.
• Rear flat horizontal (HR) terminals.
• Designed as a switch-disconnector for switching and isolation duties.
• 690 V AC rated operational voltage.
• 1000 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 65 kA short-time withstand current for 1 s.
• 50 kA short-time withstand current for 3 s.
• High mechanical and electrical operating endurance.

Reliable Switching and Isolation for Power Distribution

Switch-disconnectors provide controlled switching and electrical isolation within low-voltage distribution systems. They are particularly useful where equipment or downstream circuits must be positively separated from the supply for operation or maintenance, while appropriately coordinated protective devices elsewhere in the installation provide the required overcurrent and short-circuit protection.

The ABB E2S/MS 1000 combines a 1000 A current rating with four-pole switching, high short-time withstand capability and fixed rear horizontal connections. These characteristics make 1SDA059343R1 a robust choice for high-current switchboards where reliable isolation, compact integration and long service life are important.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Main and feeder switching applications.
• Four-pole circuits requiring neutral switching.
• Electrical circuit isolation duties.
• Manufacturing and process plant switchgear.
• Commercial and infrastructure electrical distribution.
• Transformer secondary and generator distribution assemblies.