Square D 9999R44 Disconnect Switch, 2-Pole

Introducing the Square D 9999R44 Disconnect Switch, a purpose-built two-pole isolation solution designed for industrial electrical service, maintenance, and replacement projects. Built to partner with standard switchgear, this 2-pole disconnect helps you safely de-energize circuits during outages, servicing, or upgrades. To ensure a perfect fit, verify compatibility using the part number 9999R44 and your specific application requirements.

What sets the 9999R44 apart

• Two-pole isolation: Provides independent disruption of two conductors, delivering clear, actionable disconnects for routine maintenance or emergency work.
• Brand integrity: Backed by Square D, a trusted name in industrial electrical components, known for dependable performance in demanding environments.
• Streamlined replacement workflow: Designed as a straightforward, compatible option for swapping out aging or worn disconnects without extensive redesign.
• Part-number driven compatibility: Reduces uncertainty by aligning with precise system requirements—confirm fit by comparing the part number to your equipment specs.

Compatibility and installation considerations

Before purchasing, confirm that the 9999R44 matches your equipment’s requirements. Check that the two-pole design aligns with your system’s disconnection needs, and ensure mounting, termination styles, and enclosure compatibility fit your switchgear and installation space. Using the part number as your guide helps minimize downtime and fit issues during service or replacement projects.

Ideal use cases

• Industrial service disconnects for routine maintenance on motors, conveyors, and manufacturing equipment.
• Replacement disconnects for aging or non-operational switches in production lines.
• Temporary or emergency shutdowns to safely de-energize circuits during electrical work.

Why choose this part

Choosing the Square D 9999R44 means leaner procurement and clearer compatibility checks, plus the peace of mind that comes with a recognized industrial-brand disconnect switch. Its 2-pole design is ideal for projects that require reliable isolation of two conductors, helping you meet safety and maintenance objectives without unnecessary complexity.

Need help with the part number?

Need help matching a part number or confirming compatibility? Message us and we’ll guide you to a confident purchase decision based on your specific application requirements.