QMJ365 - 400Amp Panelboard Switch

QMJ365 - 400Amp Panelboard Switch

The Square D QMJ365 is a 400 amp, 3-pole fusible switch used in commercial and industrial power distribution systems. Rated for 600VAC, it’s designed for applications where a disconnect switch and fuse protection are needed in the same unit. Its compact 9-inch design helps fit into panelboards and electrical distribution equipment where space may be limited.

This switch is made for use with R-type fuses and is commonly installed in existing AC and DC systems where matching form and fit is important. The toggle handle keeps your operation simple for servicing and maintenance, while the heavy-duty construction is built to last in everyday industrial environments.

Key Features and Benefits

• 400A, 3-pole fusible switch
• Rated for 600VAC systems
• Designed for use with R-type fuses
• Compact 9-inch panelboard design
• Toggle handle operation
• Suitable for AC and DC applications
• Built for commercial and industrial use
  

Technical Specifications

• Manufacturer: Square D
  
• Catalog Number: QMJ365
  
• Product Type: Fusible Switch Disconnector
  
• Poles: 3
  
• Line Rated Current: 400 Amps
  
• Voltage Rating: 600VAC
  
• Fuse Type: R
  
• Height: 9.02 in (229 mm)
  
• Number of Modules: 1
  
• Country of Origin: USA
  

Material Compliance and Certifications

• UL Listed
• CSA Certified
• NEMA KS1 Compliant
  

Where It Works Best

• Commercial panelboards
• Industrial distribution systems
• Motor control applications
• Manufacturing facilities
• Electrical service equipment
• Retrofit and replacement projects