1SDA073504R1 ABB E4.2V/MS 3200 3p WMP Switch Disconnector

Why Choose the ABB E4.2V/MS 3200 3p WMP Switch Disconnector?

The ABB E4.2V/MS 3200 3p WMP, order code 1SDA073504R1, is a high-performance three-pole withdrawable air switch disconnector from the ABB SACE Emax 2 family, engineered for dependable high-current switching and electrical isolation in demanding low-voltage power distribution systems. Built on the Emax 2 E4.2 platform, it combines a substantial 3200 A continuous-current rating with the enhanced withstand performance of the V version.

The E4.2V/MS is a switch-disconnector configuration designed to meet the isolation requirements of IEC 60947-3. Unlike an automatic air circuit breaker equipped with a protection trip unit, the /MS version is intended primarily for switching and isolation. This product is the withdrawable moving part, allowing it to be disconnected from its compatible fixed part for inspection, servicing and maintenance.

With a rated uninterrupted current of 3200 A, a rated operational voltage of 690 V AC and a rated short-time withstand current of 100 kA for 1 s, the E4.2V/MS is suited to high-fault-level power distribution installations. Its 75 kA withstand capability for 3 s further supports demanding industrial and infrastructure applications where robust high-current isolation is essential.

Key Advantages

• High-capacity 3200 A air switch disconnector for demanding low-voltage distribution systems.
• Three-pole configuration for three-phase switching and electrical isolation.
• 100 kA short-time withstand current for 1 s for high-fault-level installations.
• 75 kA short-time withstand current for 3 s.
• Withdrawable moving-part construction supports convenient inspection and maintenance.
• Built on the proven ABB SACE Emax 2 E4.2 platform.

Key Features

• ABB SACE Emax 2 E4.2V/MS series.
• 3200 A rated uninterrupted current.
• 3-pole configuration.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 100 kA Icw for 1 s.
• 75 kA Icw for 3 s.
• AC-23A utilisation category.
• Withdrawable moving-part construction.
• Switch-disconnector design without an automatic protection trip unit.

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. The /MS configuration is derived from the Emax 2 platform but operates without the protection trip unit used on automatic air circuit breakers, providing a dedicated solution for circuit switching, sectionalising and isolation.

The withdrawable E4.2V/MS architecture allows the moving part to be separated from its compatible fixed part, supporting efficient servicing and equipment replacement. Combined with its 3200 A current rating, 100 kA one-second withstand capability and V performance level, the 1SDA073504R1 is particularly well suited to demanding high-current distribution assemblies.

Typical Applications

• High-capacity main low-voltage distribution switchboards.
• Industrial power distribution systems.
• Data centres and critical infrastructure.
• Commercial and utility electrical installations.
• High-current three-phase circuit isolation and sectionalising.
• OEM withdrawable switchgear and power distribution assemblies.