1SDA058966R1 ABB SACE Emax E2N/MS 2000 A 4-Pole Withdrawable Switch-Disconnector Moving Part

Why Choose the ABB 1SDA058966R1 Emax E2N/MS 2000 Switch-Disconnector?

The ABB 1SDA058966R1 is a SACE Emax E2N/MS 2000 four-pole withdrawable switch-disconnector moving part designed for high-current switching and electrical isolation in low-voltage power distribution systems. ABB identifies this configuration as E2N/MS 2000 4p W MP new, combining a 2000 A current rating with four-pole construction and a withdrawable design for compatible SACE Emax switchgear.

The E2N/MS configuration performs switching and isolation duties rather than the automatic overcurrent protection provided by an air circuit breaker equipped with a trip unit. Its four-pole arrangement allows all four conductors to be switched, while the withdrawable moving-part construction supports installations where convenient isolation, servicing and replacement are important.

The E2N/MS family provides substantial short-circuit withstand performance, with a rated short-time withstand current of 55 kA for 1 s and 42 kA for 3 s. Combined with the 2000 A rating and N performance level, the 1SDA058966R1 is suited to demanding industrial, infrastructure and commercial power distribution applications.

Key Advantages

• Genuine ABB SACE Emax E2N/MS switch-disconnector.
• 2000 A rated current for high-current power distribution.
• Four-pole configuration for four-conductor switching.
• Withdrawable moving-part design for compatible draw-out switchgear.
• 55 kA short-time withstand current for 1 s.
• 42 kA short-time withstand current for 3 s.
• ABB N performance level.
• Supports convenient circuit isolation and switchgear maintenance.
• Suitable for high-current feeder and distribution switching.
• Part of ABB's established SACE Emax low-voltage switchgear platform.

Key Features

• ABB SACE Emax E2N/MS 2000 switch-disconnector.
• 2000 A rated current.
• Four-pole configuration.
• Withdrawable execution (W).
• Moving part (MP) for a compatible Emax draw-out assembly.
• E2 frame.
• N performance level.
• 55 kA rated short-time withstand current for 1 s.
• 42 kA rated short-time withstand current for 3 s.
• 121 kA rated short-circuit making capacity.
• Designed for high-current switching and electrical isolation duties.
• Compatible with the appropriate ABB E2 withdrawable fixed part.

High-Current Withdrawable Switching and Isolation

ABB SACE Emax /MS switch-disconnectors provide a dedicated means of switching and electrically isolating low-voltage power circuits. The E2N/MS 2000 performs this role without the electronic overcurrent release associated with an automatic Emax circuit breaker, allowing the required protection functions to be coordinated separately within the electrical installation.

The withdrawable moving-part configuration makes the 1SDA058966R1 particularly suitable for switchboards where maintainability and positive circuit isolation are important. When paired with the appropriate ABB E2 fixed part, it forms a draw-out assembly while providing the substantial 2000 A current capability and short-time withstand performance required by demanding distribution systems.

Typical Applications

• Industrial low-voltage power distribution systems.
• Main and sub-main electrical switchboards.
• Four-pole switching and electrical isolation.
• Withdrawable switchgear assemblies.
• 2000 A feeder switching and isolation.
• Transformer secondary distribution systems.
• Manufacturing and process industry installations.
• Commercial and infrastructure power distribution systems.