1SDA058941R1 ABB SACE Emax E1N/MS 800 A 3-Pole Withdrawable Switch-Disconnector Moving Part

Why Choose the ABB 1SDA058941R1 Emax E1N/MS 800 Switch-Disconnector?

The ABB 1SDA058941R1 is a SACE Emax E1N/MS 800 three-pole withdrawable switch-disconnector moving part designed for dependable switching and electrical isolation in low-voltage power distribution systems. Identified by ABB as E1N/MS 800 3p W MP new, it combines an 800 A current rating with a withdrawable construction for integration into compatible SACE Emax switchgear.

The E1N/MS configuration is designed primarily for switching and isolation rather than automatic overcurrent protection. Its three-pole arrangement suits three-phase electrical systems, while the withdrawable moving-part construction allows the device to form part of a draw-out assembly where convenient isolation and maintainability are required.

The E1N/MS 800 has a rated operational voltage of 690 V AC and 250 V DC, together with a rated short-time withstand current of 50 kA for 1 s and 36 kA for 3 s. Its N performance level provides robust short-circuit withstand capability for industrial and commercial distribution applications.

Key Advantages

• Genuine ABB SACE Emax E1N/MS switch-disconnector.
• 800 A rated uninterrupted current for substantial distribution loads.
• Three-pole configuration for three-phase electrical systems.
• Withdrawable moving-part design for compatible draw-out switchgear.
• 690 V AC / 250 V DC rated operational voltage.
• 50 kA short-time withstand current for 1 s.
• 36 kA short-time withstand current for 3 s.
• 1000 V rated insulation voltage and 12 kV impulse withstand capability.
• N short-circuit performance level.
• Supports convenient isolation and maintenance in compatible switchgear assemblies.

Key Features

• ABB SACE Emax E1N/MS 800 switch-disconnector.
• 800 A rated current.
• Three-pole configuration.
• Withdrawable execution (W).
• Moving part (MP) for compatible Emax draw-out assemblies.
• E1 frame.
• N short-circuit performance level.
• 690 V AC rated operational voltage.
• 250 V DC rated operational voltage.
• 1000 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 50 kA short-time withstand current for 1 s.
• 36 kA short-time withstand current for 3 s.
• Designed to IEC requirements for low-voltage switching and isolation.

Withdrawable Switching and Isolation with Emax E1N/MS

ABB SACE Emax /MS switch-disconnectors are intended to provide controlled switching and electrical isolation within low-voltage distribution systems. The E1N/MS 800 performs this switching and isolation role without the electronic overcurrent release associated with an automatic Emax circuit breaker, allowing system protection to be coordinated separately.

The withdrawable moving-part configuration makes the 1SDA058941R1 particularly useful in switchgear where serviceability and circuit isolation are important. When combined with the appropriate fixed part, the moving device forms a draw-out assembly while retaining its 800 A current-carrying capability and N-level short-time withstand performance.

Typical Applications

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