THHQB2145 - 45Amp Circuit Breaker

THHQB2145 - 45 Amp Circuit Breaker

The THHQB2145 is a 45-amp, 2-pole circuit breaker used in your compatible Q-Line panelboards. It features a bolt-on mounting design and is rated for 120/240 VAC systems with an interrupting capacity of 22 kA. This breaker is designed to protect your electrical circuits from overloads and short circuits in commercial and industrial applications.

Because it is HACR rated, the THHQB2145 can be used in many heating, air conditioning, and refrigeration installations. Its compact size makes it a practical option for panelboard maintenance, repairs, and replacement projects where matching specifications are important.

Key Features and Benefits

• 45 amp rating
• 2 poles
• Bolt-on installation
• 22kA interrupting capacity at 120/240VAC
• HACR rated
• Molded case construction
• Designed for use in compatible Q-Line equipment

Technical Specifications

• Part Number: THHQB2145
  
• Type: THHQB
  
• Poles: 2
  
• Amperage: 45A
  
• Voltage Rating: 120/240VAC
  
• Interrupting Rating: 22kA @ 120/240VAC
  
• Mounting Type: Bolt-On
  
• Series: Q-Line
  
• Construction: Molded Case Circuit Breaker
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 3.5 in.
  • Width: 2.0 in.
  • Depth: 2.81 in.

Material Compliance and Certifications

• HACR Rated
• Molded Case Circuit Breaker
• Manufactured for use in applicable electrical distribution systems when installed according to equipment and code requirements

Where It Works Best

• The THHQB2145 is commonly found in commercial buildings, industrial facilities, HVAC systems, lighting panels, and general power distribution applications that require a 45-amp, 2-pole bolt-on breaker.