1SDA073403R1 ABB E2.2H/MS 800 3p F HR Switch-Disconnector

Why Choose the ABB E2.2H/MS 800 3p F HR Switch-Disconnector?

The ABB E2.2H/MS 800 3p F HR, order code 1SDA073403R1, is a high-performance three-pole fixed air switch-disconnector from the ABB SACE Emax 2 range. Rated at 800 A, it is designed for switching and isolation duties in demanding low-voltage power distribution systems where reliable disconnection and high short-time withstand capability are required.

Unlike an Emax 2 circuit breaker fitted with an electronic protection release, the E2.2H/MS is a switch-disconnector intended primarily for switching and isolation rather than automatic overcurrent protection. Its H-performance construction provides a rated short-time withstand current of 85 kA for 1 s, making it suitable for high-fault-level installations when used with the appropriate upstream or downstream protective devices.

This version is supplied in a fixed three-pole configuration with rear horizontal terminals (HR). Its compact E2.2 frame, 800 A current rating and robust Emax 2 construction make it well suited to industrial switchboards, bus-section applications and distribution systems requiring dependable manual or electrically operated isolation.

Key Advantages

• High-performance 800 A three-pole switch-disconnector for low-voltage power distribution.
• 85 kA short-time withstand current for 1 s supports demanding high-fault-level installations.
• Provides dependable switching and isolation without an integrated overcurrent trip unit.
• Fixed installation offers a straightforward and robust switchboard configuration.
• Rear horizontal terminals support practical busbar and switchboard connections.
• Suitable for AC-21 and AC-23 switching duties at 800 A, 400 V AC.
• Compact E2.2 frame helps optimise space within low-voltage switchboards.
• Part of the proven ABB SACE Emax 2 platform.

Key Features

• ABB SACE Emax 2 E2.2H/MS switch-disconnector.
• 800 A rated uninterrupted current.
• Three-pole (3P) configuration.
• Fixed (F) installation.
• Rear horizontal (HR) main terminals.
• 690 V AC rated operational voltage.
• 85 kA rated short-time withstand current for 1 s.
• 800 A AC-21 rated operational current at 400 V AC.
• 800 A AC-23 rated operational current at 400 V AC.
• Switch-disconnector design for switching and isolation duties.
• No integrated electronic overcurrent protection release.
• Push-button operating mechanism.
• Locking mechanism provided.
• Compact E2.2 frame construction.

Reliable Switching and Isolation for Low-Voltage Distribution

The ABB Emax 2 E2.2H/MS is designed for applications that require high-current switching and dependable circuit isolation without integrated automatic overcurrent protection. With an 800 A continuous current rating and 85 kA short-time withstand capability for 1 s, it can be incorporated into coordinated systems where fault protection is provided by separate protective devices.

Its fixed three-pole construction and rear horizontal terminals make the 1SDA073403R1 particularly suitable for integration into low-voltage switchboards and power distribution assemblies. The Emax 2 architecture combines compact dimensions with robust switching performance, helping designers build efficient distribution systems while maintaining reliable isolation capability.

Typical Applications

• Main and secondary isolation in low-voltage switchboards.
• Industrial power distribution systems.
• Bus-section and bus-coupler switching applications.
• Commercial and infrastructure electrical distribution.
• Manufacturing plants and process facilities.
• Data centres and critical power distribution systems.
• Utility and energy distribution installations.
• Switchboards using separate upstream or downstream overcurrent protection.
• High-fault-level systems requiring an 85 kA short-time withstand rating.
• Applications requiring fixed rear-horizontal switchboard connections.