1SDA058860R1 ABB SACE Emax E1B/MS 1600 A 4-Pole Withdrawable Switch-Disconnector

Why Choose the ABB 1SDA058860R1 Emax E1B/MS 1600 Switch-Disconnector?

The ABB 1SDA058860R1 is a SACE Emax E1B/MS 1600 four-pole withdrawable switch-disconnector moving part designed for high-current low-voltage power distribution and isolation applications. Identified by ABB as E1B/MS16004pWMPnew, it combines a 1600 A current rating with a withdrawable construction for integration into compatible SACE Emax switchgear.

Unlike an automatic circuit breaker equipped with an overcurrent trip unit, the E1B/MS is a switch-disconnector configuration intended primarily for switching and isolation duties. Its four-pole arrangement enables simultaneous switching of all four conductors, while the withdrawable moving-part design supports convenient isolation, inspection and maintenance within compatible electrical switchboards.

The E1B/MS 1600 has a rated uninterrupted current of 1600 A, a rated operational voltage of 690 V AC and a rated insulation voltage of 1000 V. It provides a rated short-time withstand current of 42 kA for 1 s and 36 kA for 3 s, making it suitable for demanding industrial distribution systems where dependable high-current switching and isolation are required.

Key Advantages

• Genuine ABB SACE Emax E1B/MS switch-disconnector.
• 1600 A rated uninterrupted current for high-current distribution systems.
• Four-pole configuration for simultaneous switching of four conductors.
• Withdrawable moving-part design for compatible draw-out switchgear.
• 690 V AC rated operational voltage.
• 42 kA short-time withstand current for 1 s.
• Supports isolation, inspection and maintenance within compatible SACE Emax assemblies.
• Optional motor operation allows integration into electrically operated switchgear systems.

Key Features

• ABB SACE Emax E1B/MS 1600 switch-disconnector.
• 1600 A rated current.
• Four-pole configuration.
• Withdrawable moving part (W MP).
• 690 V AC rated operational voltage.
• 250 V DC rated operational voltage.
• 1000 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 42 kA short-time withstand current for 1 s.
• 36 kA short-time withstand current for 3 s.
• B short-circuit performance level.
• IP30 front protection rating.
• Optional motor operation capability.
• Designed in accordance with applicable IEC standards.

Reliable High-Current Switching and Isolation

Switch-disconnectors provide controlled switching and electrical isolation within power distribution systems. The ABB SACE Emax E1B/MS 1600 is designed for installations requiring a robust switching device capable of carrying substantial continuous current while providing the isolation functionality required for operation and maintenance of downstream equipment.

The withdrawable four-pole configuration makes the 1SDA058860R1 particularly suitable for draw-out switchboards where maintainability and isolation are important. Its 42 kA for 1 s short-time withstand capability allows the switch-disconnector to withstand substantial fault current for the specified duration while upstream or associated protective devices perform the required fault-clearing function.

Typical Applications

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