1SDA073558R1 ABB E6.2X/f/MS 6300 4p WMP Switch Disconnector

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

The ABB E6.2X/f/MS 6300 4p WMP, order code 1SDA073558R1, is an exceptionally high-capacity four-pole withdrawable air switch disconnector from the ABB SACE Emax 2 range. Built on the E6.2 frame with ABB's X performance level, it provides a substantial 6300 A rated uninterrupted current for major industrial, infrastructure and critical low-voltage power distribution systems.

The E6.2X/f/MS provides a rated short-time withstand current of 120 kA for 1 s, delivering outstanding withstand capability for installations with very high prospective fault currents. As an /MS switch-disconnector configuration, it is intended for controlled switching and electrical isolation, with appropriately coordinated protective equipment elsewhere in the system providing automatic overload and short-circuit protection.

This version is supplied as the withdrawable moving part (WMP) in a four-pole configuration with a full-size neutral. Its 6300 A current rating, 690 V AC rated operational voltage and serviceable withdrawable architecture make the 1SDA073558R1 particularly suitable for high-power distribution assemblies where maximum current capacity, robust fault withstand and maintainability are essential.

Key Advantages

• Exceptional 6300 A rated uninterrupted current for very high-capacity low-voltage distribution systems.
• 120 kA short-time withstand current for 1 s for demanding high-fault-level installations.
• Four-pole construction with full-size neutral for comprehensive switching and isolation.
• Withdrawable moving-part design supports inspection, servicing and equipment replacement.
• 690 V AC rated operational voltage for industrial low-voltage networks.
• 1000 V AC rated insulation voltage for robust electrical performance.
• Heavy-duty E6.2 frame engineered for major power-distribution applications.
• ABB X performance level provides the highest 1-second withstand rating in the E6.2H-X/MS/f group.

Key Features

• ABB SACE Emax 2 E6.2X/f/MS air switch disconnector.
• 6300 A rated uninterrupted current (Iu).
• Four-pole configuration.
• Fully rated fourth pole / full-size neutral.
• 120 kA rated short-time withstand current (Icw) for 1 s.
• 690 V AC rated operational voltage (Ue).
• 1000 V AC rated insulation voltage (Ui).
• Withdrawable moving part (WMP) configuration.
• Designed as the moving portion of an Emax 2 withdrawable switch-disconnector assembly.
• High-current construction for demanding industrial and infrastructure power systems.
• 2000-cycle electrical durability at operational voltages up to 690 V.
• IEC-conforming design.

Reliable Withdrawable Isolation for Very High-Current Distribution

ABB SACE Emax 2 /MS switch disconnectors are engineered for controlled switching and electrical isolation in low-voltage power distribution systems. The E6.2X/f/MS configuration combines the heavy-duty E6.2 mechanical platform, a fully rated fourth pole and exceptionally high short-time withstand capability, providing a dedicated switching solution for installations where automatic protection is supplied by appropriately coordinated equipment elsewhere in the system.

The withdrawable architecture allows the E6.2X/f/MS moving part to be separated from the corresponding fixed portion of the switchboard, supporting inspection, servicing and replacement strategies. Combined with its exceptional 6300 A continuous-current capacity and 120 kA 1-second short-time withstand capability, the 1SDA073558R1 is particularly suited to major power-distribution assemblies where current capacity, fault withstand and serviceable isolation are critical requirements.

Typical Applications

• High-capacity main low-voltage distribution switchboards.
• Large industrial power distribution systems.
• Very high-current incoming and outgoing isolation duties.
• Transformer secondary distribution systems.
• Generator and standby power installations.
• Data centres and critical infrastructure.
• Manufacturing, process and heavy-industry switchgear.
• Withdrawable high-fault-level distribution assemblies.