QOU340 - 40 Amp Circuit Breaker

QOU340 - 40 Amp Circuit Breaker

The QOU340 is a high-performance 3-pole, 40-amp circuit breaker designed to deliver reliable overcurrent protection in residential, commercial, and light industrial environments. Engineered for flexible installations and harsh conditions, it ensures dependable operation in a wide range of applications.

Key Features and Benefits

• Dual‑style protection: Instantaneous and time‑delayed trip mechanisms work together to guard against both short circuits and prolonged overloads.
• 10 kA interrupt capacity: Capable of managing substantial fault currents, this breaker supports safe operation in demanding electrical setups.
• VisiTrip indicator: Built‑in visual trip flag makes it fast and simple to identify circuits that have tripped.
• Flexible mounting options: Designed for DIN‑rail, surface, or flush mount installation with user‑installable mounting feet.
• Durable build: Manufactured to resist humid, salty, or corrosive environments, so performance stays consistent over time.
  

Technical Specifications

• Current Rating: 40 A
  
• Voltage Rating: 240 VAC, 48 VDC
  
• Interrupting Capacity: 10 kA at 240 VAC
  
• Poles: Three‑pole configuration
  
• Mounting Options: Unit mount; DIN‑rail, surface, flush
  
• Wire Compatibility: AWG 14–AWG 2 (copper or aluminum)
  
• Connections: Slotted box lugs, line and load
  
• Size:
  • Height: 4.05 inches
  • Width: 2.25 inches
  • Depth: 2.95 inches
• Weight: Approximately 1.10 lb (0.51 kg)
  

Material Compliance and Certifications

• Environmental Compliance: This breaker meets Schneider Electric’s Green Premium™ standards, ensuring it’s free from halogens, mercury, and toxic heavy metals. It complies fully with RoHS and REACh environmental regulations.
• Certifications: UL Listed, CSA Certified, and aligned with IEC requirements—so you get product safety and regulatory assurance.
  

Suitability

• The QOU340 is perfect for wiring panels, load centers, and distribution boards in home, commercial, or light industrial settings. Electricians and contractors will appreciate its overcurrent protection reliability, simple troubleshooting with the VisiTrip display, and flexible installation options. It performs particularly well when used in branch circuits feeding lighting, HVAC units, control panels, or motor loads requiring thermal‑magnetic protection.