1SDA073425R1 ABB E6.2X/MS 4000 3p F HR Switch Disconnector

Why Choose the ABB E6.2X/MS 4000 3p F HR Switch Disconnector?

The ABB E6.2X/MS 4000 3p F HR, order code 1SDA073425R1, is a high-performance SACE Emax 2 switch disconnector designed for switching and isolation in very high-current low-voltage electrical distribution systems. Built on ABB's E6.2 platform, this three-pole fixed device provides a 4000 A rated uninterrupted current and exceptionally high short-time withstand performance for demanding industrial, infrastructure and critical-power switchboards.

The E6.2X/MS configuration is a switch disconnector rather than a protective air circuit breaker fitted with an electronic trip unit. It is intended to make, carry and isolate high-current circuits while overcurrent and short-circuit protection is provided separately within the electrical system. The X performance level provides a rated short-time withstand current of 120 kA for 1 s, making this model suitable for installations with particularly high prospective fault currents.

The 1SDA073425R1 is supplied in a fixed three-pole configuration with horizontal rear terminals (HR). Rated for operation at up to 690 V AC, with a 1000 V AC insulation voltage and 12 kV impulse withstand voltage, it provides robust electrical and mechanical performance for high-capacity switchboards, main distribution assemblies and busbar systems.

Key Advantages

• High 4000 A rated uninterrupted current for major low-voltage distribution systems.
• 120 kA short-time withstand current for 1 s for very high fault-level installations.
• 100 kA short-time withstand current for 3 s supports demanding distribution and coordination requirements.
• Three-pole configuration for high-current three-phase switching and isolation.
• Rated for operation at up to 690 V AC.
• Horizontal rear terminals support direct and efficient switchboard busbar connections.
• Fixed installation provides a robust solution for permanent high-current switchboard applications.
• ABB SACE Emax 2 architecture provides high mechanical durability and extensive accessory compatibility.

Key Features

• ABB SACE Emax 2 E6.2X/MS switch disconnector.
• 4000 A rated uninterrupted current.
• Three-pole configuration.
• Fixed installation.
• Horizontal rear terminals (HR).
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 120 kA rated short-time withstand current for 1 s.
• 100 kA rated short-time withstand current for 3 s.
• Electrical durability of 4000 cycles at operating voltages up to 440 V AC.
• Electrical durability of 4000 cycles at 500–690 V AC.
• Mechanical durability of 12000 cycles.
• High-capacity rear connection arrangement for switchboard integration.

High Fault-Level Switching and Isolation

Switch disconnectors provide a dependable means of making, carrying and isolating electrical circuits while dedicated protective equipment elsewhere in the installation provides overload and short-circuit protection. In large low-voltage distribution systems, the ability to withstand substantial short-circuit currents is particularly important for main switchboard, busbar and high-capacity feeder applications.

The ABB E6.2X/MS 4000 combines a 4000 A continuous-current rating with an exceptional 120 kA for 1 s short-time withstand capability and 100 kA for 3 s withstand rating. Its fixed three-pole construction and horizontal rear terminals make it well suited to high-capacity switchboards where robust busbar connections, dependable isolation and very high short-time current withstand performance are required.

Typical Applications

• Main switching and isolation in high-capacity low-voltage switchboards.
• Industrial power distribution systems with high prospective fault currents.
• Transformer secondary switching and isolation.
• High-current busbar and bus-section isolation.
• Large manufacturing and process plant electrical systems.
• Data centres and critical-power distribution infrastructure.
• Utility, transport and major commercial electrical installations.