1SDA059299R1 ABB E2N/MS 1000 1000A 4-Pole Fixed Switch-Disconnector

Why Choose the ABB E2N/MS 1000 4-Pole Fixed Switch-Disconnector?

The ABB E2N/MS 1000, order code 1SDA059299R1, is a robust 1000 A four-pole fixed air switch-disconnector designed for switching and isolation duties in low-voltage power distribution systems. As part of the proven ABB SACE Emax E2N/MS series, it provides dependable high-current switching for industrial, commercial and infrastructure switchgear.

Unlike an Emax circuit breaker equipped with an electronic protection release, the E2N/MS is configured as a switch-disconnector for controlled switching and circuit isolation. It is therefore suitable for installations where overcurrent protection is provided separately and a dependable main switching or isolating device is required.

With a rated uninterrupted current of 1000 A, a four-pole fixed configuration and horizontal rear terminals, the E2N/MS 1000 is designed for permanent integration into compatible low-voltage switchboards. Its E2N/MS platform provides a rated short-time withstand current of 55 kA for 1 s, supporting demanding high-current distribution applications.

Key Advantages

• Heavy-duty 1000 A switch-disconnector for low-voltage power distribution.
• Four-pole configuration for switching three-phase systems with neutral.
• Designed for dependable switching and circuit isolation.
• Fixed construction for permanent switchboard installation.
• Horizontal rear terminals support practical busbar and switchboard connections.
• 55 kA rated short-time withstand current for 1 s.
• Suitable for main-switch and distribution-isolation duties.
• Part of the established ABB SACE Emax low-voltage switching platform.

Key Features

• ABB SACE Emax E2N/MS switch-disconnector.
• 1000 A rated uninterrupted current.
• Four-pole construction.
• Fixed version (F).
• Horizontal rear terminals (HR).
• 55 kA short-time withstand current for 1 s.
• Designed for high-current switching and isolation.
• No integral electronic overcurrent trip unit.
• Suitable for coordinated low-voltage switchgear assemblies.
• Robust Emax construction for industrial power distribution.

Reliable Switching and Isolation for Power Distribution

Switch-disconnectors such as the ABB SACE Emax E2N/MS provide controlled switching and isolation of high-current low-voltage circuits. They allow sections of an electrical installation to be disconnected for operational control, inspection and maintenance while providing a robust switching point within a coordinated power distribution system.

The E2N/MS 1000 is designed as a switch-disconnector rather than an automatic overcurrent protective circuit breaker, so appropriate separate protection must form part of the overall installation design. Its fixed four-pole construction and horizontal rear terminals make it particularly suitable for permanent installation in main distribution boards and industrial switchgear assemblies.

Typical Applications

• Low-voltage main distribution switchboards.
• Main switching and circuit isolation.
• Industrial power distribution systems.
• Commercial building electrical distribution.
• Manufacturing and process plant switchgear.
• Three-phase four-wire distribution systems.
• Infrastructure and utility installations.
• Fixed switchgear assemblies requiring high-current isolation.