QOB145 - 45 Amp Circuit Breaker

QOB145 - 45 Amp Circuit Breaker

When you need dependable circuit protection for a compatible electrical panel, the QOB145 bolt-on circuit breaker is built to get the job done. This 45 Amp, single-pole Type QOB circuit breaker is designed to protect branch circuits from overloads and short circuits while providing the added security of a bolt-on connection. Unlike plug-in breakers, the bolt-on design creates a more secure installation, making it a popular choice in commercial buildings, industrial facilities, and other applications where vibration or frequent use can be a concern. With a 10kA interrupting rating at 120VAC, the QOB145 is well suited for protecting lighting circuits, receptacles, dedicated equipment, and other branch circuits in compatible panelboards. Its compact size makes replacing an existing breaker or completing a panel upgrade straightforward for qualified electricians. Whether you're performing routine maintenance or replacing a worn breaker, the QOB145 offers the dependable performance and reliable protection needed to help keep your electrical system operating safely.

Key Features and Benefits

• 45 Amp current rating: For dependable branch circuit protection.
• Single-pole design: For 120VAC applications.
• Bolt-on mounting: Creates a secure mechanical and electrical connection.
• Type QOB circuit breaker: For use in compatible panelboards and load centers.
• 10kA A.I.C. rating at 120VAC: Helps safely interrupt available fault current within its rated capacity.
• Compact dimensions: Allow for easy installation in compatible electrical equipment.
• Excellent replacement choice: For maintenance, repairs, and electrical system upgrades.
  

Technical Specifications

• Part Number: QOB145
  
• Type: QOB
  
• Mounting Style: Bolt-On
  
• Poles: 1
  
• Amperage: 45A
  
• Voltage Rating: 120VAC
  
• Interrupting Rating: 10kA A.I.C. @ 120VAC
  
• Dimensions:
  • Height: 3.0 in.
  • Width: 0.75 in.
  • Depth: 2.5 in.

Material Compliance and Certifications

• Industry Standards: Manufactured to meet applicable industry standards for molded case circuit breakers.
• Installation Requirements: Designed for installation in compatible electrical distribution equipment.
• Professional Installation: Installation should always be completed by a qualified professional and in accordance with applicable national, state, and local electrical codes.
• Compatibility: Verify compatibility with your existing panelboard or load center before installation.
  

Where It Works Best

• The QOB145 45 Amp bolt-on circuit breaker is commonly used in commercial buildings, industrial facilities, office complexes, schools, healthcare facilities, and compatible residential electrical systems where a Type QOB bolt-on breaker is required. It's an excellent choice for protecting branch circuits serving lighting, receptacles, HVAC controls, dedicated equipment, and other electrical loads that require dependable overcurrent protection.