1SDA073442R1 ABB E2.2H/MS 800 4p F HR Switch Disconnector

Why Choose the ABB E2.2H/MS 800 4p F HR Switch Disconnector?

The ABB E2.2H/MS 800 4p F HR, order code 1SDA073442R1, is a high-performance SACE Emax 2 circuit-breaker switch disconnector designed for dependable switching and isolation in low-voltage electrical distribution systems. Built on ABB's E2.2 platform, this fixed four-pole device provides a 800 A rated uninterrupted current and is suited to industrial, commercial and infrastructure switchboards requiring robust four-pole isolation.

The E2.2H/MS configuration is designed for switching and isolation rather than integral electronic overcurrent protection. Its H performance level provides a rated short-time withstand current of 85 kA, allowing the device to withstand substantial prospective fault currents while separate protective equipment elsewhere in the installation provides the required overload and short-circuit protection.

The 1SDA073442R1 is supplied in a fixed four-pole configuration with horizontal rear terminals (HR). Rated for operation at up to 690 V AC, it provides a robust solution for main isolation, feeder switching and busbar applications where four-pole switching, high short-time withstand performance and efficient rear busbar connections are required.

Key Advantages

• 800 A rated uninterrupted current for low-voltage power distribution systems.
• Four-pole configuration for comprehensive switching and isolation in suitable three-phase four-wire systems.
• 85 kA short-time withstand capability for demanding electrical networks.
• Rated for operation at up to 690 V AC.
• Horizontal rear terminals support efficient connection to switchboard busbars.
• Fixed construction provides a robust and straightforward installation arrangement.
• Interlockable design supports safe switchboard operating schemes.
• Optional motor drive and voltage release provide flexibility for electrically controlled switching applications.

Key Features

• ABB SACE Emax 2 E2.2H/MS switch disconnector.
• 800 A rated uninterrupted current.
• Four-pole configuration.
• Fixed installation.
• Horizontal rear terminals (HR).
• 690 V AC rated operational voltage.
• 85 kA short-time withstand current.
• Switch-disconnector construction without an integral electronic protection trip unit.
• Bolted main-circuit connection.
• Optional motor drive.
• Optional voltage release.
• Interlockable construction.
• IP30 front-side degree of protection.
• Suitable for integration into low-voltage distribution boards.

Four-Pole High-Current Switching and Isolation

Switch disconnectors provide a reliable means of making, carrying and isolating electrical circuits while overload and short-circuit protection is supplied by separate protective equipment within the installation. Four-pole devices are particularly useful in suitable three-phase four-wire distribution systems where simultaneous switching and isolation of all four conductors is required.

The ABB E2.2H/MS 800 combines an 800 A continuous-current rating with an 85 kA short-time withstand capability. Its fixed four-pole construction and horizontal rear terminals make it well suited to switchboards requiring dependable isolation, strong short-time current withstand performance and efficient rear busbar integration.

Typical Applications

• Main switchboard switching and isolation.
• Three-phase four-wire low-voltage distribution systems.
• Industrial power distribution switchboards.
• High-current feeder switching and isolation.
• Busbar and bus-section isolation.
• Commercial building electrical distribution.
• Manufacturing and process plant switchboards.
• Infrastructure and critical-power distribution systems.