QOU220 - 20 Amp Circuit Breaker

QOU220 - 20 Amp Circuit Breaker

When you're working on an electrical installation, the last thing you want is a circuit breaker that doesn't fit the job. The Square D QOU220 20 Amp 2-Pole Circuit Breaker is designed for residential and commercial applications that require reliable overcurrent protection and flexible mounting. Part of Schneider Electric's QOU series, this miniature molded case breaker handles 20-amp circuits and offers a practical option for electrical panels, equipment enclosures, and control assemblies.

Key Features and Benefits

• 20-Amp, Two-Pole Design: Provides overcurrent protection for compatible 20-amp circuits. The two-pole configuration suits installations that require protection on both poles.
• Thermal-Magnetic Protection: Responds to overloads and short circuits, helping protect electrical wiring and connected equipment from excessive current.
• VisiTrip Indicator: Makes it easier to recognize when the breaker has tripped. Instead of guessing which circuit needs attention, you get a visible indication right on the breaker.
• Multiple Mounting Options: Can be installed on DIN rail, surface, or flush mounts with the appropriate hardware. This gives installers more flexibility for different enclosure layouts.
• AC and DC Voltage Ratings: Rated for 120V AC, 120/240V AC, and 48V DC operation, giving it a range of potential uses when all applicable electrical requirements are met.

Technical Specifications

• Manufacturer: Schneider Electric
  
• Brand: Square D
  
• Catalog Number: QOU220
  
• Product Series: QOU
  
• Product Type: Miniature molded case circuit breaker
  
• Breaker Type: Standard
  
• Amperage: 20 Amps
  
• Number of Poles: 2
  
• Trip Type: Thermal-magnetic
  
• Trip Indication: VisiTrip
  
• AC Voltage Rating: 120V AC / 120/240V AC
  
• DC Voltage Rating: 48V DC
  
• AC Interrupting Capacity: 10kA at 120V AC and 120/240V AC
  
• Mounting Type: Unit mount
  
• Mounting Options: DIN rail, surface, or flush mounting with suitable accessories
  
• Line Connection: Slotted box lugs
  
• Load Connection: Slotted box lugs
  
• Compatible Conductors: Copper or aluminum
  
• Wire Size Range: 14 AWG to 2 AWG
  
• Terminal Tightening Torque: 45 lbf-in (5.08 N·m)
  
• Height: 4.05 inches
  
• Width: 1.50 inches
  
• Depth: 2.95 inches
  
• HACR Rated: Yes
  
• Product Certifications: UL Listed, CSA, IEC (as listed by the manufacturer)
  
• Country of Origin: Mexico
  
• Manufacturer Warranty: 18 months
  

Material Compliance and Certifications

• UL Listed: The QOU220 is UL Listed, confirming it has been evaluated under applicable product safety requirements.
• CSA Certified: Schneider Electric lists CSA certification for this breaker and states that UL and CSA have verified its QOU circuit breakers against their published specifications.
• IEC Certification: The manufacturer's certification information includes IEC. For installations that require compliance with a specific IEC standard, check the relevant manufacturer documentation.
• HACR Rated: The QOU220 carries an HACR rating for applicable heating, air conditioning, and refrigeration applications.
• Copper and Aluminum Conductor Compatibility: Its slotted box lug terminals accommodate approved copper and aluminum wiring from 14 AWG to 2 AWG.

Where It Works Best

• Residential Electrical Installations
  
• Commercial Electrical Systems
  
• 20-Amp Two-Pole Circuit Protection
  
• Custom Electrical Control Panels
  
• DIN Rail-Mounted Assemblies
  
• Surface-Mounted Electrical Enclosures
  
• Flush-Mounted Electrical Assemblies
  
• HVAC Electrical Equipment
  
• Refrigeration Equipment
  
• Electrical Equipment Maintenance
  
• Existing Square D QOU220 Replacements