1SDA073506R1 ABB E4.2H/MS 4000 3p WMP Switch-Disconnector

Why Choose the ABB E4.2H/MS 4000 3p WMP Switch-Disconnector?

The ABB E4.2H/MS 4000 3p WMP, order code 1SDA073506R1, is a high-current three-pole withdrawable air switch-disconnector moving part from the ABB SACE Emax 2 range. Designed for demanding low-voltage power distribution systems, it provides a rated uninterrupted current of 4000 A and combines substantial current-carrying capability with the enhanced withstand performance of the E4.2H/MS configuration.

This E4.2H/MS configuration is the moving part of a withdrawable switch-disconnector, designed for installation with the corresponding Emax 2 fixed part. The withdrawable architecture supports efficient inspection, servicing and replacement, making it particularly suitable for high-capacity switchboards where maintainability and operational flexibility are important.

With applications up to 690 V AC and a rated short-time withstand current of 85 kA for 1 s, the E4.2H/MS 4000 is engineered for high-current three-phase distribution systems requiring dependable switching, isolation and robust short-circuit withstand performance.

Key Advantages

• Very high 4000 A rated uninterrupted current for major low-voltage distribution systems.
• Three-pole configuration for switching and isolation of three-phase circuits.
• Withdrawable moving-part design supports efficient servicing, inspection and replacement.
• Designed for low-voltage applications up to 690 V AC.
• High 85 kA short-time withstand current for 1 s.
• H performance level provides greater short-time withstand capability than the corresponding E4.2N/MS configuration.
• Suitable for demanding high-current industrial and infrastructure switchboards.
• Part of ABB's established SACE Emax 2 power distribution platform.

Key Features

• ABB SACE Emax 2 E4.2H/MS series.
• 4000 A rated uninterrupted current.
• Three-pole switching configuration.
• H performance level for enhanced short-time withstand capability.
• Suitable for applications up to 690 V AC.
• 85 kA rated short-time withstand current for 1 s.
• Withdrawable moving part for use with the corresponding Emax 2 fixed part.
• Designed for high-current switching and isolation duties.
• Robust E4.2 frame for demanding low-voltage distribution assemblies.
• Approximate product weight of 60 kg.

Reliable High-Current Withdrawable Switching and Isolation

The ABB E4.2H/MS provides a dependable means of switching and electrically isolating high-current sections of low-voltage power distribution systems. Its withdrawable construction allows the moving part to be separated from the corresponding fixed part, supporting planned inspection and maintenance while retaining the robust electrical architecture of the SACE Emax 2 platform.

With a 4000 A uninterrupted current rating and 85 kA for 1 s short-time withstand capability, the E4.2H/MS 4000 offers enhanced withstand performance for substantial distribution loads. Its three-pole configuration makes it particularly suitable for high-current three-phase installations where dependable isolation, serviceability and robust electrical performance are key requirements.

Typical Applications

• High-capacity low-voltage main distribution switchboards.
• Industrial three-phase power distribution systems.
• Large commercial and infrastructure electrical installations.
• Switchboards requiring withdrawable high-current isolation devices.
• Manufacturing and process plant power distribution systems.
• Main distribution assemblies requiring dependable 4000 A switching and isolation.