QOU320 - 20 Amp Circuit Breaker

QOU320 - 20 Amp Circuit Breaker

Not every electrical setup calls for a standard plug-on breaker. Sometimes you need a circuit breaker that offers more flexibility in how and where you mount it. That's where the Square D QOU320 20 Amp 3-Pole Circuit Breaker comes in. Designed for compatible residential and commercial electrical equipment, this compact breaker provides overcurrent protection with a 20-amp rating, three poles, and a 10kA interrupting capacity at its specified AC voltages.

Key Features and Benefits

• 20-Amp, Three-Pole Design: Provides overcurrent protection for electrical equipment requiring a compatible three-pole breaker.
• Easy-to-Spot Trip Indication: Square D's VisiTrip feature helps you quickly identify a tripped breaker.
• More Mounting Flexibility: Can be DIN rail, surface, or flush-mounted with the appropriate mounting accessories.
• AC and DC Applications: Rated for 120V, 120/240V, and 240V AC, as well as 48V DC.
• Copper or Aluminum Wiring: Slotted box lugs on both ends accept 14 AWG to 2 AWG conductors.

Technical Specifications

• Manufacturer: Schneider Electric
  
• Brand: Square D
  
• Catalog Number: QOU320
  
• Product Series: QOU
  
• Product Type: Miniature molded case circuit breaker
  
• Circuit Breaker Type: Standard
  
• Amperage: 20 Amps
  
• Number of Poles: 3
  
• Rated AC Voltage: 120V, 120/240V, and 240V AC
  
• Rated DC Voltage: 48V DC
  
• AC Interrupting Capacity: 10kA at 120V, 120/240V, and 240V AC
  
• Trip Indicator: VisiTrip
  
• Mounting Type: Unit mount
  
• Mounting Options: DIN rail, surface, or flush mounting with suitable accessories
  
• Line Connections: Slotted box lugs
  
• Load Connections: Slotted box lugs
  
• Compatible Wire Materials: Copper and aluminum
  
• Wire Size Range: 14 AWG to 2 AWG
  
• Terminal Tightening Torque: 45 lbf-in (5.08 N·m)
  
• Height: 4.05 inches (102.87 mm)
  
• Width: 2.25 inches (57.15 mm)
  
• Depth: 2.95 inches (74.93 mm)
  
• HACR Rated: Yes
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

• UL Listed
• CSA Certification
• IEC Certification
• HACR Rated

Where It Works Best

• Residential Electrical Equipment
  
• Commercial Electrical Installations
  
• 20-Amp Three-Pole Circuits
  
• Compatible 240V AC Systems
  
• Electrical Control Panels
  
• Custom Equipment Enclosures
  
• DIN Rail-Mounted Assemblies
  
• Surface-Mounted Electrical Assemblies
  
• Flush-Mounted Electrical Assemblies
  
• Heating Equipment
  
• Air Conditioning Equipment
  
• Refrigeration Equipment