1SDA058963R1 ABB E2B/MS 2000 2000A 3-Pole Withdrawable Switch-Disconnector Moving Part

Why Choose the ABB E2B/MS 2000 3-Pole Withdrawable Switch-Disconnector?

The ABB E2B/MS 2000 is a high-current 2000 A three-pole withdrawable switch-disconnector moving part designed for dependable switching and isolation in low-voltage electrical distribution systems. Part of the proven ABB SACE Emax E2 series, this B-performance device combines substantial current-carrying capability with withdrawable construction for service-friendly integration into industrial, commercial and infrastructure switchgear.

ABB Emax switch-disconnectors identified by the /MS designation are derived from the corresponding Emax air circuit breakers, retaining their overall dimensions and accessory compatibility while omitting the overcurrent trip unit. The E2B/MS is designed for switching and isolation duties and supports AC-23A utilisation category applications in accordance with IEC 60947-3, including motor loads and other highly inductive circuits.

The 1SDA058963R1 configuration is rated at 2000 A and features a three-pole withdrawable moving part (W MP). With a rated operational voltage of up to 690 V AC, a 42 kA short-time withstand current and a robust Emax operating mechanism, it provides reliable high-current isolation while allowing the moving part to be withdrawn from its compatible fixed part for inspection, servicing or replacement.

Key Advantages

• Proven ABB SACE Emax E2B/MS switch-disconnector platform.
• 2000 A rated uninterrupted current for high-current distribution applications.
• Three-pole configuration for three-phase switching and isolation.
• Withdrawable moving-part design supports convenient inspection, servicing and replacement.
• High 42 kA short-time withstand current for 1 s.
• Maintains 42 kA short-time withstand capability for 3 s.
• Rated for operation at up to 690 V AC.
• AC-23A utilisation category supports demanding inductive-load switching duties.

Key Features

• ABB SACE Emax E2B/MS 2000 switch-disconnector moving part.
• 2000 A rated uninterrupted current.
• Three-pole construction.
• Withdrawable (W) moving part (MP) configuration.
• B short-circuit performance level.
• 690 V AC / 250 V DC rated operational voltage.
• 1000 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 42 kA for 1 s rated short-time withstand current.
• 42 kA for 3 s rated short-time withstand current.
• 10,000-cycle electrical durability.
• 25,000-cycle mechanical durability.

Reliable High-Current Withdrawable Switching and Isolation

The ABB E2B/MS 2000 provides a dependable means of making, carrying and isolating high-current circuits without an integrated overcurrent trip unit. Its 42 kA short-time withstand capability for both 1 s and 3 s supports use in substantial low-voltage distribution systems when appropriate overload and short-circuit protection is coordinated elsewhere in the installation.

As a withdrawable moving part, the E2B/MS 2000 can be separated from its corresponding fixed part for inspection, maintenance or replacement. Combined with its 2000 A current rating, three-pole architecture and proven SACE Emax mechanical platform, the 1SDA058963R1 is particularly well suited to switchboards where high-current isolation, service accessibility and dependable mechanical performance are required.

Typical Applications

• Main low-voltage distribution switchboards.
• High-current industrial power-distribution systems.
• Main incomer and feeder switching applications.
• Three-phase electrical switching and isolation.
• Motor and highly inductive load switching under AC-23A duty.
• Manufacturing and process plants.
• Commercial and infrastructure electrical installations.
• Withdrawable switchgear and power-distribution assemblies.