1SDA073551R1 ABB E6.2H/MS 6300 4p WMP Switch Disconnector

Why Choose the ABB E6.2H/MS 6300 4p WMP Switch Disconnector?

The ABB E6.2H/MS 6300 4p WMP, order code 1SDA073551R1, is a high-capacity four-pole withdrawable air switch disconnector from the ABB SACE Emax 2 family, engineered for dependable switching and electrical isolation in demanding low-voltage power distribution systems. Built on the Emax 2 E6.2 platform, it provides a substantial 6300 A rated uninterrupted current for high-power industrial and infrastructure installations.

The E6.2H/MS is a switch-disconnector configuration designed to satisfy isolation requirements rather than provide automatic overcurrent protection. The 1SDA073551R1 is the withdrawable moving part for use with a compatible Emax 2 fixed part, enabling convenient disconnection for inspection, servicing and maintenance while supporting high-current switchboard architectures.

With a rated operational voltage of 690 V AC and a rated short-time withstand current of 100 kA for 1 s, the E6.2H/MS is engineered for installations with demanding prospective fault levels. Its four-pole configuration and H performance level make it a robust switching and isolation solution for large low-voltage distribution systems.

Key Advantages

• High-capacity 6300 A air switch disconnector for major low-voltage distribution systems.
• Four-pole configuration for comprehensive circuit switching and isolation.
• 100 kA short-time withstand current for 1 s for high-fault-level installations.
• 690 V AC rated operational voltage for demanding industrial power systems.
• Withdrawable moving-part construction supports efficient inspection and maintenance.
• Built on the high-current ABB SACE Emax 2 E6.2 platform.

Key Features

• ABB SACE Emax 2 E6.2H/MS series.
• 6300 A rated uninterrupted current.
• 4-pole configuration.
• 50% rated neutral pole.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 100 kA Icw for 1 s.
• 100 kA Icw for 3 s.
• Withdrawable moving-part construction for compatible Emax 2 switchgear.

Reliable High-Current Switching and Isolation

ABB Emax 2 /MS switch disconnectors are designed to provide dependable switching and electrical isolation of low-voltage power circuits. Unlike an automatic Emax 2 air circuit breaker equipped with a protection trip unit, the /MS configuration is intended primarily to establish, carry, interrupt and isolate the electrical path within a coordinated power distribution system.

The withdrawable E6.2H/MS architecture allows the moving part to be separated from its compatible fixed part, supporting efficient inspection, servicing and equipment replacement. Combined with its 6300 A current rating and 100 kA short-time withstand capability, the 1SDA073551R1 provides a powerful switching and isolation solution for large-scale low-voltage distribution assemblies.

Typical Applications

• High-capacity main low-voltage distribution switchboards.
• Heavy industrial power distribution systems.
• Data centres and critical infrastructure.
• Large commercial and infrastructure installations.
• High-current four-pole circuit isolation and sectionalising.
• OEM withdrawable switchgear and power distribution assemblies.