THQL1140 - 40Amp Circuit Breaker

THQL1140 - 40 Amp Circuit Breaker

The THQL1140 is a 40-amp, single-pole molded case circuit breaker designed to provide dependable overcurrent and short-circuit protection for your residential, commercial, and light industrial electrical systems. As part of the trusted THQL Q-Line family, this plug-on circuit breaker is engineered for straightforward installation and reliable performance in compatible load centers and panelboards. With a 10kA interrupting rating at 120VAC, the THQL1140 helps safeguard electrical circuits from damaging fault conditions while supporting the safe operation of connected equipment.

Built with durability and long-term service in mind, this breaker features a compact design that fits efficiently within panel spaces while delivering consistent protection where it matters most. Its HACR rating makes it suitable for applications involving heating, air conditioning, and refrigeration equipment, providing added versatility across a wide range of electrical installations. Whether you're replacing an existing breaker or maintaining a distribution system, the THQL1140 offers a dependable solution for protecting branch circuits and electrical infrastructure.

Key Features and Benefits

• 40 Amp Current Rating: For reliable branch circuit protection.
• Single-Pole Design: Is ideal for 120VAC applications.
• THQL Q-Line Configuration: For compatibility with designated load centers and panelboards.
• Plug-On Mounting Style: Allows for efficient installation and replacement.
• 10kA Interrupting Capacity at 120VAC: Helps protect against short-circuit events.
• HACR Rated: For use with heating, air conditioning, and refrigeration equipment.
• Molded Case Construction: Is designed for dependable performance and durability.
• Compact Footprint: Helps maximize available panel space.
  

Technical Specifications

• Part Number: THQL1140
  
• Type: THQL
  
• Circuit Breaker Style: Molded Case
  
• Mounting Method: Plug-On
  
• Poles: 1
  
• Amperage Rating: 40 Amps
  
• Voltage Rating: 120VAC
  
• Interrupting Rating (A.I.C.): 10kA @ 120VAC
  
• HACR Rated: Yes
  
• Product Line: Q-Line
  
• Dimensions:
  • Height: 3.31 in.
  • Width: 1.00 in.
  • Depth: 2.81 in.

Material Compliance and Certifications

• Industry Standards: The THQL1140 circuit breaker is manufactured to meet applicable industry standards for molded case circuit breakers and electrical distribution equipment.
• HACR Rating: Its HACR rating supports use in approved heating, ventilation, air conditioning, and refrigeration applications.
• Installation Requirements: Proper installation should always be performed in accordance with local electrical codes, equipment specifications, and applicable safety requirements.
  

Where It Works Best

• The THQL1140 is well-suited for protecting 120VAC branch circuits in residential, commercial, and light industrial environments. Common applications include lighting circuits, receptacle circuits, HVAC-related equipment, refrigeration systems, and general-purpose electrical distribution. Its compact single-pole Design and Q-Line compatibility make it an excellent choice for panel maintenance, system upgrades, and replacement projects requiring dependable overcurrent protection.