1SDA059342R1 ABB E2S/MS 1000 1000A 3P Withdrawable Switch-Disconnector

Why Choose the ABB E2S/MS 1000 1000A 3P Withdrawable Switch-Disconnector?

The ABB 1SDA059342R1 is a robust SACE Emax E2S/MS switch-disconnector moving part designed for switching and isolation duties in demanding low-voltage power distribution systems. Rated at 1000 A, this three-pole unit uses a withdrawable moving-part configuration for integration with a compatible SACE Emax fixed part.

Part of the ABB SACE Emax family, the E2S/MS 1000 combines high current-carrying capability with the service advantages of withdrawable switchgear. Unlike an automatic circuit breaker intended to provide overcurrent interruption through a protection trip unit, the E2S/MS is a switch-disconnector intended primarily for switching and isolation, making it suitable for installations where circuit protection is provided elsewhere in the system.

The E2S/MS 1000 has a rated uninterrupted current of 1000 A, a rated operational voltage of 690 V AC and a rated short-time withstand current of 65 kA for 1 s. Its withdrawable construction allows the moving part to be isolated and removed from the compatible fixed part, supporting inspection, servicing and switchboard maintenance.

Key Advantages

• Heavy-duty 1000 A SACE Emax switch-disconnector for low-voltage distribution.
• Three-pole configuration for three-phase power systems.
• Withdrawable moving-part design supports convenient isolation and maintenance.
• 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 1000 V insulation voltage and 12 kV impulse withstand voltage.
• SACE Emax construction provides high electrical and mechanical operating endurance.

Key Features

• ABB SACE Emax E2S/MS series.
• 1000 A rated current.
• Three-pole construction.
• Withdrawable (W) version.
• Moving part (MP) configuration.
• 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.
• Withdrawable connection for compatible SACE Emax switchgear assemblies.

Reliable Switching and Isolation for Power Distribution

Switch-disconnectors are used to establish or interrupt current under normal operating conditions while providing an isolation function for electrical equipment and distribution circuits. In a properly designed installation, they provide a dependable means of separating downstream equipment from the supply for operational or maintenance purposes while associated protective devices provide the required overcurrent protection.

The ABB E2S/MS 1000 combines a 1000 A current rating with high short-time withstand capability and a withdrawable moving-part design. This makes it particularly suitable for high-current switchboards where serviceability, isolation and dependable switching are important requirements.

Typical Applications

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