1SDA073412R1 ABB E2.2N/MS 2000 3p FHR Switch-Disconnector

Why Choose the ABB E2.2N/MS 2000 3p FHR Switch-Disconnector?

The ABB E2.2N/MS 2000 3p FHR, order code 1SDA073412R1, is a SACE Emax 2 fixed air switch-disconnector designed for high-current switching and isolation in low-voltage electrical distribution systems. This E2.2N/MS model combines a 2000 A rated uninterrupted current with a three-pole configuration for demanding industrial and infrastructure power-distribution applications.

As an Emax 2 switch-disconnector, the E2.2N/MS is intended for switching and isolation duties rather than the electronic overcurrent protection provided by Ekip-equipped Emax 2 circuit breakers. It is therefore suitable for installations where protection is coordinated elsewhere in the electrical system and a robust high-current isolation point is required.

This version uses fixed construction with rear horizontal terminals and supports operating voltages up to 690 V AC. The E2.2N/MS performance level provides a rated short-time withstand current of 66 kA for 1 s and 50 kA for 3 s, supporting demanding switchgear applications with high prospective fault currents.

Key Advantages

• 2000 A rated uninterrupted current for high-current low-voltage distribution systems.
• E2.2N/MS switch-disconnector configuration for dependable switching and circuit isolation.
• Three-pole construction for three-phase electrical distribution applications.
• Fixed installation provides a permanent switchboard-mounted solution.
• Rear horizontal terminals support practical busbar integration within switchgear assemblies.
• 66 kA short-time withstand current for 1 s provides robust fault-current withstand performance.
• Suitable for operating voltages up to 690 V AC.

Key Features

• ABB SACE Emax 2 E2.2N/MS series.
• 2000 A rated uninterrupted current.
• 3-pole configuration.
• Fixed installation.
• Rear horizontal terminals.
• Switch-disconnector functionality for high-current switching and isolation.
• Maximum rated operational voltage of 690 V AC.
• 66 kA rated short-time withstand current for 1 s.
• 50 kA rated short-time withstand current for 3 s.
• Push-button operating element.
• Designed for integration into low-voltage distribution switchgear.

Reliable 2000 A Switching and Circuit Isolation

The ABB SACE Emax 2 E2.2N/MS is designed to provide controlled switching and isolation of high-current low-voltage circuits. Its switch-disconnector configuration provides a dedicated means of disconnecting a circuit while allowing the required overcurrent and fault protection to be coordinated through other protective devices within the electrical distribution system.

With a 2000 A continuous current rating, operation up to 690 V AC and short-time withstand capability of 66 kA for 1 s, the E2.2N/MS 2000 provides a robust solution for substantial industrial and infrastructure switchboards. Its fixed construction and rear horizontal terminals are particularly suited to permanent installations requiring direct integration with switchgear busbar systems.

Typical Applications

• Main switching and isolation in high-current low-voltage switchboards.
• Industrial power-distribution systems.
• High-current three-phase circuit isolation.
• Transformer secondary distribution assemblies.
• Commercial and infrastructure electrical installations.
• Switchgear systems where circuit protection is provided by coordinated protective devices elsewhere in the installation.