QO390 - 90 Amp Circuit Breaker

QO390 - 90 Amp Circuit Breaker

The Schneider Electric QO390 is a 90-amp, 3-pole circuit breaker designed to keep electrical systems safe and running smoothly. Built for 120/240V AC applications, it helps prevent damage caused by overloads and short circuits with a 10 kA interrupt rating. This breaker is a solid choice for homeowners, electricians, and contractors who need reliable protection without taking up unnecessary space in a panel. With Schneider’s VisiTrip indicator, you’ll know instantly if it’s been tripped, making maintenance quicker and easier.

Key Features and Benefits

• Strong Protection: Handles up to 90 amps with a 10 kA interrupt rating, giving you dependable protection against electrical faults.
• Easy to Spot Trips: The VisiTrip indicator lets you see right away when the breaker has tripped.
• Compact Size: Fits neatly into panels while still delivering full performance.
• Simple Installation: Plug-in mounting makes setup straightforward for a wide range of uses.
• Built to Last: Certified by UL and CSA for safety and long-term reliability.
• Environmentally Friendly: RoHS/REACh compliant and Green Premium™ certified.
  

Technical Specifications

• Amperage: 90A
  
• Interrupt Rating: 10 kA @ 120/240V AC
  
• Voltage: 120/240V AC
  
• Poles: 3
  
• Trip Type: Thermal-magnetic
  
• Mounting: Plug-in
  
• Wire Size: AWG 4–2/0 (copper or aluminum)
  
• Torque: 49.6 lbf.in (5.6 N.m)
  
• Dimensions:
  • Height: 3.5 inches
  • Width: 2.2 inches
  • Depth: 2.9 inches
• Weight: 1.05 lbs
  

Material Compliance and Certifications

• Certifications: UL Listed (File E84967), CSA Certified (Master Contract 153555)
  
• Environmental Compliance: RoHS/REACh compliant, Mercury-free, Halogen-free
  
• Sustainability: Green Premium™ label for sustainable performance
  

Suitability

• Great for residential, commercial, and light industrial applications. Commonly used for HVAC units, lighting circuits, and power distribution panels where safe and consistent electrical protection is a must.