THHQB2140 - 40Amp Circuit Breaker

THHQB2140 - 40 Amp Circuit Breaker

The THHQB2140 is a 40-amp, 2-pole bolt-on circuit breaker designed for use in compatible Q-Line panelboards. Rated for 120/240VAC with a 22kA interrupting capacity, it helps protect electrical systems and connected equipment from overloads and short circuits. Its bolt-on design provides a secure connection to the panel, making it a common choice for commercial and industrial electrical installations where reliability is important. The breaker is also HACR rated, making it suitable for heating, air conditioning, and refrigeration applications. Whether you're replacing an existing breaker during maintenance or installing equipment in a new system, the THHQB2140 offers dependable circuit protection in a compact molded case design.

Key Features and Benefits

• 40 Amp current rating
• 2-pole configuration
• 22kA interrupting rating at 120/240VAC
• Bolt-on mounting design
• HACR rated
• Q-Line series breaker
• Molded case construction
• Designed for overload and short-circuit protection
  

Technical Specifications

• Part Number: THHQB2140
  
• Type: THHQB
  
• Amperage: 40 Amps
  
• Poles: 2
  
• Voltage Rating: 120/240VAC
  
• Interrupting Capacity: 22kA AIC
  
• Mounting Style: Bolt-On
  
• Series: Q-Line
  
• Rating: HACR Rated
  
• Dimensions:
  • Height: 3.5 in.
  • Width: 2.0 in.
  • Depth: 2.81 in.

Material Compliance and Certifications

• HACR Rated
• Molded case circuit breaker construction
• Manufactured for use in compatible electrical distribution systems
• Designed to provide overcurrent and short-circuit protection
  

Where It Works Best

• The THHQB2140 is commonly used in commercial buildings, industrial facilities, retail spaces, schools, apartment complexes, and other properties that require a 40-amp, 2-pole circuit breaker. It is frequently used in HVAC systems, air-conditioning equipment, refrigeration units, panelboard installations, and general power distribution circuits operating at 120/240 VAC.