QBHW1045 - 45 Amp Circuit Breaker

QBHW1045 - 45 Amp Circuit Breaker

Need to replace a QBHW1045 circuit breaker? Start with the numbers. The QBHW1045 is a 45-amp, 1-pole, bolt-on thermal-magnetic circuit breaker with a 22 kA.I.C. rating at 120VAC. It belongs to the QBHW Quicklag family and is intended for compatible electrical equipment that calls for this breaker type and rating. Thermal-magnetic protection helps you protect the circuit against both sustained overloads and high-current fault conditions. The breaker is also HACR rated, so it can be used in qualifying heating, air-conditioning, and refrigeration applications when these specifications are required. At just 1 inch wide, the QBHW1045 doesn't take up much room, but choosing the right breaker isn't simply about whether it fits. Before replacing an existing unit, compare the part number, 45A rating, single-pole configuration, bolt-on connection, voltage, and interrupting rating with the requirements of your equipment.

Key Features and Benefits

• 45-amp rating for applications that specifically call for a 45-amp breaker.
• 1-pole design for compatible single-pole circuit applications.
• A bolt-on connection provides a secure mounting method for equipment designed for QBHW breakers.
• Thermal-magnetic protection responds to overload and high-current fault conditions.
• 22 kA I.C. at 120VAC provides the specified interrupting capacity.
• HACR rated for qualifying heating, air-conditioning, and refrigeration applications.
• 40°C rating for its specified operating characteristics.
• Compact size at only 1 inch wide.

Technical Specifications

• Part Number: QBHW1045
  
• Type: QBHW / Quicklag
  
• Breaker Type: Thermal Magnetic
  
• Mounting: Bolt-On
  
• Poles: 1
  
• Amperage: 45A
  
• A.I.C. Rating: 22k @ 120VAC
  
• HACR Rated: Yes
  
• Temperature Rating: 40°C
  
• Dimensions:
  • Height: 3.41 in.
  • Width: 1.00 in.
  • Depth: 2.92 in.

Material Compliance and Certifications

• The QBHW1045 is HACR-rated, making it appropriate for qualifying HVAC and refrigeration applications when the equipment requires a breaker with these characteristics.
• As with any circuit breaker replacement, specifications matter. Check the breaker markings and equipment documentation before installation, and follow applicable electrical codes and safety requirements. Installation should be completed by qualified electrical personnel.
  

Where It Works Best

• The QBHW1045 is a practical choice when you're working with compatible electrical equipment that specifically requires a QBHW 45-amp, 1-pole bolt-on circuit breaker. Its HACR rating also makes it suitable for certain heating, air-conditioning, and refrigeration applications where such ratings are required.