Square D D223N - 100A, 240V, Fused Disconnect Switch

The Square D D223N is a high-performance fused disconnect switch engineered for demanding industrial and commercial environments. With a 100A amperage rating and 240V operating capacity, this device delivers safe electrical isolation, reliable disconnection under load, and long-term durability for mission-critical equipment. Designed to integrate seamlessly with lockout/tagout procedures, it helps technicians perform maintenance safely and efficiently.

Why this fused disconnect switch stands out

• Fused protection provides a decisive and controlled disconnection, helping limit fault currents and protect downstream equipment.
• Robust construction tailored for panel boards, motor control centers, and control cabinets where dependable isolation is essential.
• Lockout/tagout readiness enables secure servicing, reducing workplace risk during maintenance and inspections.
• Durable design built to withstand the rigors of industrial environments, delivering consistent performance over time.

Technical snapshot

• Amperage Rating: 100A
• Voltage Rating: 240V
• Product Type: Fused Disconnect Switch
• Brand: Square D
• Model: D223N

Ideal applications

Perfect for isolating motors, pumps, conveyors, heaters, and process equipment in manufacturing floors, facilities, and commercial spaces. The D223N provides a reliable isolation point for routine maintenance, service work, and system testing, giving engineers and technicians confidence that circuits are fully de-energized before work begins.

Choosing the Square D D223N

If you need a purpose-built solution for safe electrical isolation, this fused disconnect switch offers a practical, straightforward path to compliance and safety. Its integration with lockout/tagout workflows and its ability to disconnect under load make it a pragmatic choice for facilities prioritizing reliability, protection, and technician safety.