QO240 - 40 Amp Circuit Breaker

QO240 - 40 Amp Circuit Breaker

The Schneider Electric QO240 Circuit Breaker is a dependable choice for keeping your electrical system safe and running smoothly. Designed as part of the popular QO series, this breaker is built to handle 40 amps and is suitable for 120/240 VAC applications. Its 2-pole design and thermal-magnetic trip feature provide solid protection against overloads and short circuits, helping to prevent damage to wiring and equipment. Electricians appreciate its simple plug-in style installation, while the built-in VisiTrip indicator makes it easy to see when the breaker has tripped—saving time during maintenance and troubleshooting. Whether for a home or a light commercial setup, this breaker delivers reliable protection you can count on.

Key Features and Benefits

• Dependable Protection: 40 Amp, 2-pole breaker with 10kA interrupting capacity to handle electrical faults safely.
• Quick Installation: Plug-in design makes it easy to install, reducing setup time and labor costs.
• Clear Trip Indicator: VisiTrip feature lets you know instantly if the breaker has tripped, simplifying repairs.
• Durable Performance: Thermal-magnetic trip mechanism ensures consistent, long-lasting protection.
• Flexible Add-Ons: Compatible with accessories like shunt trips, auxiliary switches, and alarms for additional functionality.
  

Technical Specifications

• Current Rating: 40A
  
• Voltage: 120/240V AC
  
• Poles: 2
  
• Interrupting Capacity: 10kA @ 120/240V AC
  
• Mounting: Plug-in
  
• Wire Range: AWG 8–AWG 2 (copper or aluminum)
  
• Torque: 44.3 lbf.in (5 N·m)
  
• Dimensions:
  • Height: 3.1 inches
  • Width: 1.5 inches
  • Depth: 2.9 inches
• Weight: 0.50 lb (0.227 kg)
  

Material Compliance and Certifications

• UL Listed: (File E84967)
• CSA Certified: (Master Contract 153555)
• Environmental Compliance: RoHS and REACh compliant, free from hazardous materials
• Eco Design: Mercury-free and halogen-free, carries Schneider Electric’s Green Premium™ label
  

Where It Works Best

• The QO240 is a great fit for residential, commercial, and light industrial electrical systems. It’s perfect for new installations or as a replacement when upgrading existing panels, delivering the safety and performance you need for reliable power management.