Q1B350 - 50 Amp Circuit Breaker

Q1B350 - 50 Amp Circuit Breaker

The Q1B350 50A Circuit Breaker offers dependable protection for demanding electrical systems where stability and safety are nonnegotiable. Designed to work in commercial and industrial installations, this 3-pole, 50-amp breaker handles heavy loads with a 10,000 AIC rating at 240 VAC, keeping your circuits safeguarded even in high-stress environments. Its bolt-on design locks firmly into your panel, while the dual thermal and magnetic protection ensures both overloads and short circuits are addressed immediately. In short: it’s engineered to keep your electrical setup running with confidence.

Key Features and Benefits

• Thermal + Magnetic Protection: Guards against both overcurrent and short circuit faults in one unit
• High Interrupting Capacity: Rated for 10 kA at 240 VAC, capable of handling serious fault currents
• Bolt-On Mounting: Locks securely into panel, reducing the risk of loosened connections
• Compact Footprint: Occupies only six panel spaces, making it ideal where space is tight

Technical Specifications

• Amperage: 50 A
  
• Poles: 3
  
• Rated Voltage: 240 VAC
  
• Interrupting Capacity (AIC): 10,000 A
  
• Frame Type: Q1B
  
• Dimensions:
  • Width: 2.25 in
  • Length: 6.38 in
  • Depth: 2.31 in
• Weight: 5 lbs
  
• Mounting Style: Bolt-on
  
• Panel Space Requirement: 6 spaces
  

Material Compliance and Certifications

• UL Listed: Meets rigorous safety and performance standards
• RoHS Compliant: Manufactured without harmful substances, supporting safer environments

Where It Works Best

• This Q1B350 Circuit Breaker is ideal for retrofit, replacement, or new installations in commercial buildings, factories, and other heavy-duty electrical systems where consistent, reliable performance is critical. It’s especially well-suited where space is limited, but full protective capability is required. If you’re managing switchgear, motor control centers, or distribution panels and you want a breaker you can trust day after day, this unit is built to answer the call.