THQP140 - 40Amp Circuit Breaker

THQP140 - 40 Amp Circuit Breaker

The THQP140 circuit breaker is a compact, high-performance solution designed for dependable branch circuit protection in your residential and light commercial electrical systems. Built as part of the trusted Q-Line family, this 40-amp, single-pole molded case circuit breaker combines reliable overload and short-circuit protection with a slim “THIN” space-saving profile that helps maximize panel capacity without sacrificing performance. Its plug-on mounting style allows for quick installation, making it a practical choice for electricians, contractors, and maintenance professionals working in tight panel configurations. Engineered for durability and consistent operation, the THQP140 is also HACR rated, making it suitable for heating, air conditioning, and refrigeration equipment applications where dependable circuit interruption is critical. Whether you are upgrading an existing electrical panel or replacing a breaker in a busy commercial environment, this breaker offers the balance of efficiency, safety, and space optimization that professionals seek.

Key Features and Benefits

• Space-Saving THIN Design: Narrow profile helps increase circuit capacity in compatible load centers and panelboards.
• 40 Amp Single-Pole Protection: Designed to safeguard 120VAC circuits from overloads and short circuits.
• Plug-On Installation: Simplifies installation and replacement for faster electrical maintenance.
• HACR Rated: Suitable for HVAC and refrigeration system applications requiring reliable circuit protection.
• Q-Line Compatibility: Designed for use in compatible Q-Line load centers and panelboards.
• Molded Case Construction: Built for long-term electrical performance and dependable operation.
• 10k AIC Rating: Provides interrupting protection for systems requiring up to 10,000 AIC at 120VAC.

Technical Specifications

• Part Number: THQP140
  
• Type: THQP
  
• Poles: 1
  
• Amperage Rating: 40 Amps
  
• Voltage Rating: 120VAC
  
• A.I.C. Rating: 10kA @ 120VAC
  
• Mounting Style: Plug-On
  
• Circuit Breaker Style: Molded Case
  
• Dimensions:
  • Height: 3.25 in.
  • Width: 0.5 in.
  • Depth: 2.56 in.

Material Compliance and Certifications

• HACR Rated for approved heating, air conditioning, and refrigeration applications
• Manufactured to meet industry standards for molded case circuit breakers
• Designed for safe and dependable branch circuit protection in compatible electrical distribution systems

Where It Works Best

• The THQP140 is ideal for residential load centers, apartment buildings, retail spaces, office environments, and light commercial electrical systems where panel space is limited but reliable protection is essential. Its slim footprint makes it especially useful in crowded electrical panels, while the 40 Amp rating supports dedicated circuits for HVAC equipment, large appliances, lighting systems, and other demanding electrical loads.