1SDA073516R1 ABB E1.2N/MS 630 4p WMP Switch Disconnector

Why Choose the ABB E1.2N/MS 630 4p WMP Switch Disconnector?

The ABB E1.2N/MS 630 4p WMP, order code 1SDA073516R1, is a compact four-pole withdrawable air switch disconnector from the ABB SACE Emax 2 family, designed for dependable switching and electrical isolation in low-voltage power distribution systems. Built on the Emax 2 E1.2 platform, it combines a 630 A continuous-current rating with the enhanced short-time withstand performance of the N version.

The E1.2N/MS is a switch-disconnector configuration intended primarily for switching and electrical isolation rather than automatic overcurrent protection. The 1SDA073516R1 is supplied as the withdrawable moving part and is designed to operate with the appropriate separately ordered Emax 2 fixed part, providing service flexibility for switchboards where convenient inspection and maintenance are important.

With a rated uninterrupted current of 630 A, a rated operational voltage of 690 V AC and a rated short-time withstand current of 50 kA, the E1.2N/MS provides robust performance for demanding distribution circuits. Its four-pole configuration supports simultaneous switching and isolation of all four conductors where required by the electrical system design.

Key Advantages

• Compact 630 A air switch disconnector for low-voltage power distribution.
• Four-pole configuration for comprehensive circuit switching and isolation.
• 50 kA rated short-time withstand current for demanding distribution applications.
• 690 V AC rated operational voltage for industrial power systems.
• Withdrawable moving-part construction supports convenient inspection and servicing.
• Built on the proven ABB SACE Emax 2 E1.2 platform.

Key Features

• ABB SACE Emax 2 E1.2N/MS series.
• 630 A rated uninterrupted current.
• 4-pole configuration.
• 690 V AC rated operational voltage.
• 50 kA rated short-time withstand current.
• 630 A AC-21 rating at 400 V.
• 630 A AC-23 rating at 400 V.
• Withdrawable moving-part construction.
• Optional motor operator and voltage release capability.
• Designed for use with a separately ordered compatible Emax 2 fixed part.

Reliable Switching and Isolation for Power Distribution

ABB Emax 2 /MS switch disconnectors 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 as part of a coordinated power distribution system.

The withdrawable E1.2N/MS architecture allows the moving part to be separated from its compatible fixed part, supporting efficient inspection, servicing and equipment replacement. Combined with its 630 A current rating and 50 kA short-time withstand capability, the 1SDA073516R1 provides a flexible solution for modern low-voltage distribution assemblies.

Typical Applications

• Low-voltage main 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 panel-building applications.