1SDA073441R1 ABB E2.2N/MS 800 4p F HR Switch Disconnector

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

The ABB E2.2N/MS 800 4p F HR, order code 1SDA073441R1, is a SACE Emax 2 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 combines robust isolation performance with the modular construction of the Emax 2 family.

The E2.2N/MS configuration is a switch disconnector derived from the Emax 2 circuit breaker platform. It satisfies the isolation requirements of IEC 60947-3 and is intended for making, carrying and isolating circuits while overcurrent and short-circuit protection is provided separately within the electrical installation. The four-pole configuration allows simultaneous switching and isolation of all four conductors in suitable three-phase four-wire systems.

Rated for operation at up to 690 V AC, the E2.2N/MS 800 provides a rated short-time withstand current of 66 kA for 1 s and 50 kA for 3 s. It is supplied in a fixed configuration with horizontal rear terminals (HR), providing a practical connection arrangement for integration with switchboard busbars.

Key Advantages

• 800 A rated uninterrupted current for low-voltage power distribution applications.
• Four-pole configuration for switching and isolation in three-phase four-wire systems.
• 66 kA short-time withstand current for 1 s for demanding electrical networks.
• 50 kA short-time withstand current for 3 s supports robust short-time current performance.
• Rated for operation at up to 690 V AC.
• Horizontal rear terminals support efficient switchboard busbar connections.
• Fixed installation provides a straightforward and robust switchboard arrangement.
• Based on ABB's modular SACE Emax 2 platform with extensive accessory and installation flexibility.

Key Features

• ABB SACE Emax 2 E2.2N/MS switch disconnector.
• 800 A rated uninterrupted current.
• Four-pole configuration.
• Fixed installation.
• Horizontal rear terminals (HR).
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 66 kA rated short-time withstand current for 1 s.
• 50 kA rated short-time withstand current for 3 s.
• AC-23A utilisation category.
• 50/60 Hz operating frequency.
• Designed to provide circuit isolation in accordance with IEC 60947-3.
• Switch-disconnector construction without an integral electronic protection trip unit.

Four-Pole Switching and Isolation for Low-Voltage Distribution

Switch disconnectors provide a reliable means of making, carrying and isolating electrical circuits while overload and short-circuit protection is provided by dedicated protective devices elsewhere in the installation. A four-pole switch disconnector can switch all four conductors simultaneously in suitable three-phase four-wire networks, providing a clearly defined isolation point for downstream equipment and circuits.

The ABB E2.2N/MS 800 combines an 800 A continuous-current rating with a 66 kA short-time withstand capability for 1 s. Its fixed four-pole construction and horizontal rear terminals make it suitable for main isolation, feeder switching and busbar applications where dependable switching, high short-time withstand performance and efficient switchboard integration are required.

Typical Applications

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