HU266R - 600A Safety Switch

HU266R - 600A Safety Switch

When your electrical system demands a dependable way to disconnect power, the Square D HU266R heavy-duty safety switch delivers the capacity and control needed for demanding commercial and industrial applications. The quick-make, quick-break operating mechanism supports decisive switching, while a dual cover interlock adds an important layer of operational safety. Whether you're maintaining facility equipment, upgrading an electrical distribution system, or replacing an existing disconnect, the HU266R combines heavy-duty construction with straightforward operation. Because this model is non-fusible, appropriate overcurrent protection must be provided elsewhere in the electrical system.

Key Features and Benefits

• 600 Amp Current Rating:
• 600V AC/DC Voltage Rating:
• 2-Pole Configuration:
• Heavy-Duty Non-Fusible Design:
• NEMA 3R Rainproof Enclosure:
• Quick-Make, Quick-Break Operation:
• Dual Cover Interlock:
• Indoor and Outdoor Versatility:

Technical Specifications

• Part Number: HU266R
  
• Manufacturer: Square D / Schneider Electric
  
• Product Category: Safety Switch
  
• Product Series: Heavy Duty
  
• Switch Type: Non-Fusible, Single-Throw
  
• Amperage: 600A
  
• Voltage Rating: 600V AC/DC
  
• Number of Poles: 2
  
• Enclosure Rating: NEMA 3R
  
• Enclosure Material: Galvannealed Steel
  
• Mounting Type: Surface Mount
  
• Electrical Connections: Lugs
  
• Conductor Compatibility: 3/0 AWG to 500 kcmil copper or aluminum
  
• Height: 69.13 inches
  
• Width: 36.62 inches
  
• Depth: 17.75 inches
  

Material Compliance and Certifications

The HU266R features a NEMA 3R galvannealed steel enclosure, designed to help protect electrical components from rain and other weather-related exposure. This makes it suitable for appropriately installed indoor and outdoor applications.

The safety switch is UL Listed, supporting its use in electrical installations requiring recognized product safety certification.

Where It Works Best

• Industrial Facilities:
• Commercial Electrical Systems:
• Outdoor Electrical Installations:
• Manufacturing and Production Equipment:
• Equipment Maintenance and Servicing:
• Electrical Distribution Upgrades:
• Heavy-Duty Power Isolation: