1SDA073525R1 ABB E2.2N/MS 800 4p WMP Switch Disconnector

Why Choose the ABB E2.2N/MS 800 4p WMP Switch Disconnector?

The ABB E2.2N/MS 800 4p WMP, order code 1SDA073525R1, is a robust four-pole withdrawable air switch disconnector from the ABB SACE Emax 2 family, engineered for dependable switching and electrical isolation in low-voltage power distribution systems. Built on the Emax 2 E2.2 platform, it combines an 800 A continuous-current rating with strong short-time withstand performance for industrial, commercial and infrastructure switchboards.

The E2.2N/MS is a switch-disconnector configuration intended for switching and isolation rather than automatic overcurrent protection. The 1SDA073525R1 is supplied as the withdrawable moving part for use with a compatible Emax 2 fixed part, providing convenient disconnection for inspection, servicing and maintenance.

With a rated uninterrupted current of 800 A, a rated operational voltage of 690 V AC and a rated short-time withstand current of 66 kA for 1 s, the E2.2N/MS provides robust performance for demanding distribution circuits. Its four-pole configuration with a 100% rated neutral pole supports comprehensive switching and isolation in suitable three-phase four-wire systems.

Key Advantages

• Robust 800 A air switch disconnector for low-voltage power distribution.
• Four-pole configuration with 100% rated neutral for comprehensive circuit isolation.
• 66 kA short-time withstand current for 1 s for demanding installations.
• 50 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 E2.2 platform.

Key Features

• ABB SACE Emax 2 E2.2N/MS series.
• 800 A rated uninterrupted current.
• 4-pole configuration.
• 100% rated neutral pole.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 66 kA Icw for 1 s.
• 50 kA Icw for 3 s.
• Withdrawable moving-part construction with optional motor operator and voltage release.

Reliable Switching and Isolation for Power Distribution

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 distribution system.

The withdrawable E2.2N/MS architecture allows the moving part to be separated from its compatible fixed part, supporting efficient inspection, servicing and equipment replacement. Combined with its 800 A current rating and 66 kA one-second short-time withstand capability, the 1SDA073525R1 provides a flexible and robust solution for modern low-voltage distribution assemblies.

Typical Applications

• Main low-voltage distribution switchboards.
• Industrial power distribution systems.
• Commercial and infrastructure electrical installations.
• Four-pole circuit isolation and sectionalising.
• Withdrawable switchgear requiring maintenance flexibility.
• OEM switchgear and power distribution assemblies.