Square D DU324 - 200A, 240V, 3-Phase, Switch

The Square D DU324 is a rugged, purpose-built switch engineered for reliable on/off isolation and overcurrent protection in demanding industrial and commercial settings. With a 200A rating, 240V operation, and three-phase capability, it provides a robust solution for controlling power to motors, equipment, and critical circuits.

• Model: DU324
• Amperage: 200A
• Voltage: 240V
• Phase: 3-Phase

Compact, maintainable protection for demanding environments

Designed as a compact fusible switch, the DU324 offers straightforward maintenance without sacrificing protection. The fusible switch design enables dependable isolation during service and reduces downtime by simplifying fuse replacement and routine inspection. Built to withstand the rigors of industrial and commercial installations, it delivers dependable performance where uptime matters most.

Why this switch fits your motor control and panel needs

• Ideal for motor disconnects, allowing quick, safe isolation of motors for maintenance or servicing.
• Suitable for panelboards and feeder circuits, providing integrated protection for electrical distributions.
• Effective branch circuit protection in compact spaces where a full-sized disconnect would be impractical.
• Designed to be maintainable in the field, minimizing downtime and simplifying routine testing and replacement of fuses.

Practical advantages and use cases

In manufacturing plants, warehouses, or facilities with three-phase equipment, the DU324 ensures safe startup and reliable shutdown sequences. It shines on equipment like pumps, conveyors, compressors, and HVAC systems where consistent protection and easy service are critical. Its rugged construction supports continuous operation in environments with dust, vibration, and varying ambient conditions, making it a dependable choice for durable electrical control.

Tips for optimal use

• Pair the DU324 with appropriately rated fuses to maintain consistent overcurrent protection aligned with your system’s electrical load.
• Install in a ventilated, accessible enclosure to simplify maintenance checks and fuse changes.
• Use as part of a broader motor control strategy that includes proper lockout/tagout procedures and regular inspection intervals.
• Match the switch’s 200A, 240V, 3-Phase specifications to your equipment’s nameplate data for safe and effective operation.