QOU240 - 40 Amp Circuit Breaker

QOU240 - 40 Amp Circuit Breaker

The Schneider Electric QOU240 is a compact 2-pole, 40-amp circuit breaker engineered for reliable overcurrent protection in residential, commercial, and OEM applications. Designed with both instant and time-delay protection, it effectively balances nuisance trip avoidance with fault safety. Its space-saving form and flexible mounting options make it ideal for tight panel configurations.

Key Features and Benefits

• Reliable Overcurrent Protection: Keeps circuits and sensitive components safe from overloads and short circuits.
• Instant Plus Time‑Delay Protection: Combines magnetic trip and delayed thermal elements to prevent nuisance trips while ensuring safety under fault conditions.
• Flexible Mounting Options: Its unit‑mount design adapts easily to OEM and retrofit applications.
• Manual Trip Capability: Offers user‑friendly manual operation via internal magnetic strips for added control.
• Space‑Saving Form Factor: Compact size fits into tighter panel layouts without sacrificing performance.
• High Fault‑Clearing Capacity: Rated for 10 kA at 120/240 VAC—ideal for installations with potential heavy fault currents.

Technical Specifications

• Current Rating: 40 A
  
• Voltage Rating: 120/240 VAC, 120 VAC, and 48 V DC
  
• Interrupting Capacity: 10 kA at 120/240 VAC
  
• Poles: 2‑pole (2P) configuration
  
• Mounting Type: Unit mount
  
• Connections: Slotted box lugs on both line and load sides
  
• Wire Compatibility: AWG 14 to AWG 2 (aluminum or copper)
  
• Torque Requirement: 45 lbf·in (≈5.1 N·m)
  
• Size: ~4.05″ H × 1.50″ W × 2.95″ D (102.9 × 38.1 × 74.9 mm)
  
• Weight: 12 oz (≈340 g)
  

Material Compliance and Certifications

• UL Listed, CSA, and IEC Certified: Meets key global safety standards.
• RoHS & REACh Compliant: Free from hazardous substances such as mercury and lead.
• Schneider Green Premium: Designed to meet strict environmental criteria—halogen‑free, made with low CO₂ processes, and built for recyclability.

Suitability

• This breaker shines in residential upgrade projects, commercial HVAC systems, and OEM equipment panels where dependable 2‑pole, 40 Amp protection is essential. Able to handle high fault currents while fitting in compact spaces, the QOU240 is a go‑to for electricians and engineers focused on keeping circuits safe and installations efficient.