1SDA058904R1 ABB SACE Emax E4H/f/MS 4000 A 4-Pole Withdrawable Switch-Disconnector Moving Part

Why Choose the ABB 1SDA058904R1 Emax E4H/f/MS 4000 Switch-Disconnector?

The ABB 1SDA058904R1 is a SACE Emax E4H/f/MS 4000 four-pole withdrawable switch-disconnector moving part designed for demanding high-current switching and isolation applications. Identified by ABB as E4H/f/MS 4000 4p W MP new, it combines a substantial 4000 A current rating with a withdrawable construction for integration into compatible SACE Emax switchgear.

The E4H/f/MS configuration is designed for switching and electrical isolation rather than automatic overcurrent protection. Its four-pole full-size neutral arrangement provides switching across all four poles, while the withdrawable moving-part construction supports draw-out switchgear installations where operational flexibility, isolation and maintainability are important.

The E4H/f/MS 4000 is rated for 690 V AC operation and provides a rated short-time withstand current of 85 kA for 1 s and 75 kA for 3 s. With a 1000 V insulation voltage, 12 kV impulse withstand voltage and ABB H performance level, the 1SDA058904R1 is suited to high-capacity industrial power distribution systems.

Key Advantages

• Genuine ABB SACE Emax E4H/f/MS switch-disconnector.
• 4000 A rated uninterrupted current for high-capacity power distribution.
• Four-pole configuration with full-size neutral.
• Withdrawable moving-part design for compatible draw-out switchgear.
• 690 V AC rated operational voltage.
• 85 kA short-time withstand current for 1 s.
• 75 kA short-time withstand current for 3 s.
• ABB H short-circuit performance level.
• Supports convenient isolation, inspection and maintenance in compatible switchgear.

Key Features

• ABB SACE Emax E4H/f/MS 4000 switch-disconnector.
• 4000 A rated current.
• Four-pole configuration.
• Full-size neutral.
• Withdrawable execution (W).
• Moving part (MP) for compatible Emax draw-out assemblies.
• E4 frame.
• H 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.
• 85 kA short-time withstand current for 1 s.
• 75 kA short-time withstand current for 3 s.
• Designed to IEC requirements for high-current switching and isolation.

High-Capacity Withdrawable Switching and Isolation

ABB SACE Emax switch-disconnectors provide controlled switching and electrical isolation for high-current power distribution systems. The /MS configuration is intended for switching and disconnection duties, allowing overcurrent and short-circuit protection to be coordinated separately using suitable protective equipment within the installation.

The E4H/f/MS 4000 combines a 4000 A current rating with an 85 kA for 1 s short-time withstand capability. Its four-pole full-size neutral arrangement and withdrawable moving-part construction make it particularly suitable for high-capacity switchboards requiring dependable isolation, substantial current-carrying capability and convenient maintenance access.

Typical Applications

• High-current industrial power distribution systems.
• Main and sub-main electrical switchboards.
• Four-pole switching with full-size neutral.
• Withdrawable switchgear assemblies.
• High-capacity feeder switching and isolation.
• Transformer secondary distribution systems.
• Manufacturing and process industry installations.
• Infrastructure and large commercial power distribution systems.