QBHW1050 - 50 Amp Circuit Breaker

QBHW1050 - 50 Amp Circuit Breaker

If you're replacing a breaker and QBHW1050 is the part number you're looking for, the important details are straightforward. This is a 50-amp, single-pole QBHW circuit breaker with bolt-on mounting and thermal-magnetic protection. It carries a 22 kA interrupting rating at 120 VAC and is HACR-rated with a 40°C rating. The breaker measures 3.41 inches high, 1 inch wide, and 2.92 inches deep, so it provides its 50-amp rating in a relatively compact package. The thermal magnetic design handles two common protection needs: the thermal element responds to sustained overload conditions, while the magnetic trip responds to short-circuit conditions. For maintenance work, panel repairs, or replacement projects, the QBHW1050 is a practical choice when the existing equipment specifically calls for this breaker type and electrical rating. As with any replacement circuit breaker, matching the part number is a good starting point, but you'll also want to confirm the panel requirements, voltage, amperage, number of poles, interrupting rating, and mounting style before installation.

Key Features and Benefits

• 50 amp, single-pole design for compatible electrical applications.
• 22kAIC at 120VAC provides a 22,000-amp interrupting rating at the specified voltage.
• Thermal-magnetic protection responds to both overload and short-circuit conditions.
• Bolt-on mounting creates a secure connection in equipment designed for this breaker style.
• HACR rated for appropriate heating, air-conditioning, and refrigeration applications.
• 40°C, rated per the available product specifications.
• At just 1 inch wide, it doesn't take up unnecessary panel space.
• The QBHW1050 part number makes it easier to identify the breaker when servicing or maintaining compatible equipment.

Technical Specifications

• Part Number: QBHW1050
  
• Type: QBHW
  
• Amperage: 50A
  
• Poles: 1
  
• A.I.C. Rating: 22kA @ 120VAC
  
• Breaker Design: Thermal Magnetic
  
• Mounting: Bolt-On
  
• HACR Rated: Yes
  
• Temperature Rating: 40°C
  
• Height: 3.41 in.
  
• Width: 1.00 in.
  
• Depth: 2.92 in.
  

Material Compliance and Certifications

• The available specifications for the QBHW1050 identify it as HACR-rated, with a 40°C rating and a 22 kA interrupting rating at 120 VAC. Other certification or material-compliance claims should be verified against the breaker's markings and the applicable manufacturer documentation. This is particularly important when a job requires a specific agency listing or compliance standard.

Where It Works Best

• The QBHW1050 is intended for compatible electrical equipment that accepts QBHW bolt-on circuit breakers. Its 50A, single-pole configuration makes it useful in commercial, industrial, facility-maintenance, and HVAC electrical systems where these specifications are required.