Square D DTU323 Safety Switch – 3 Pole – 100A – 240VAC / 250VDC – Non-Fusible – F Series – NEMA 1 – Surface Mount

The Square D DTU323 is a heavy-duty safety switch designed for reliable power isolation and switching in residential, commercial, and industrial electrical systems. Manufactured by Schneider Electric under the Square D brand, it provides a robust and safe method for disconnecting electrical loads and ensuring system maintenance safety.

This 3-pole, 100A safety switch is rated for 240VAC and 250VDC applications and features a surface-mounted enclosure for flexible installation. It delivers a high interrupting capacity of 200kA at 240V, making it suitable for demanding electrical environments where fault protection and operational reliability are critical.

Built with a durable steel enclosure and compliant with UL standards, the DTU323 is part of the Square D F Series, engineered for long mechanical life and dependable performance in frequent switching applications.

Specifications

• Brand: Square D
• Manufacturer: Schneider Electric
• Part Number: DTU323
• Series: F Series
• Type: Safety Switch
• Configuration: 3 Pole
• Phase: 3 Phase
• Current Rating: 100A
• Voltage Rating: 240VAC / 250VDC
• Duty Rating: General Duty
• Fusibility: Non-Fusible
• Interrupt Rating: 200kA @ 240V
• Mounting Style: Surface Mounted
• Enclosure Rating: NEMA 1
• Frame Type: D Frame
• Number of Wires: 3
• Body Material: Steel

Construction Features

• Heavy-duty safety disconnect construction
• High interrupting capacity for fault protection
• Rugged steel enclosure for industrial durability
• Surface mount design for flexible installation
• Non-fusible switching mechanism
• Suitable for AC and DC applications

Applications

• Industrial power isolation
• Commercial electrical distribution systems
• Motor and equipment disconnects
• Maintenance safety switching
• HVAC and building electrical systems
• General purpose load disconnecting

Certifications & Standards

• UL Listed
• RoHS compliant
• CSA design compliant (typical for F Series)
• Built to Square D / Schneider Electric F Series standards

Returns are easy

You may return items within 30 days of delivery for a refund.

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