THQC1120WL - 20Amp Circuit Breaker

THQC1120WL - 20 Amp Circuit Breaker

When your dependable circuit protection matters, the THQC1120WL 20 Amp 1-Pole Circuit Breaker delivers the performance needed to keep electrical systems operating safely and efficiently. Designed as part of the proven THQC Q-Line series, this molded case circuit breaker provides reliable overcurrent and short-circuit protection for 120VAC branch circuits in residential, commercial, and light industrial applications.

Its 20-amp Rating makes it a popular choice for protecting lighting circuits, receptacles, HVAC equipment, and other general-purpose electrical loads. The breaker features a cable-in/cable-out (lug-lug) configuration, allowing for straightforward conductor termination while helping streamline installation. With a 10kA interrupting capacity, the THQC1120WL is built to respond quickly when fault conditions occur, helping you to safeguard both electrical equipment and wiring from costly damage.

Whether you're maintaining an existing electrical system, replacing a failed breaker, or supporting an upgrade project, the THQC1120WL offers a practical combination of performance, compact sizing, and dependable protection. Its HACR rating also makes it suitable for approved heating, air conditioning, and refrigeration applications, adding versatility across a wide range of installations.

Key Features and Benefits

• 20 Amp Continuous Protection: For branch circuits and connected equipment.
• Single-Pole Design: Is ideal for 120VAC electrical systems.
• 10kAIC Rating: Helps protect against damaging fault currents.
• Q-Line Series Construction: Is known for dependable performance in compatible electrical systems.
• Cable-In/Cable-Out (Lug-Lug) Connections: Provide secure wire terminations.
• HACR Rated: For approved HVAC and refrigeration applications.
• Compact Footprint: Helps maximize available panel space.
• Molded Case Design: Is built for consistent operation and long-term reliability.
  

Technical Specifications

• Part Number: THQC1120WL
  
• Type: THQC
  
• Breaker Type: Molded Case Circuit Breaker
  
• Poles: 1
  
• Amperage: 20 Amps
  
• Voltage Rating: 120VAC
  
• Interrupting Rating: 10kAIC
  
• Connection Type: Cable-In/Cable-Out (Lug-Lug)
  
• Series: Q-Line
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 3.94 in.
  • Width: 1.00 in.
  • Depth: 2.63 in.

Material Compliance and Certifications

• HACR Rated: For approved heating, air conditioning, and refrigeration equipment applications.
• Industry Standards: Manufactured and tested to applicable industry standards for molded case circuit breakers.
• Installation Requirements: Intended for installation in accordance with applicable electrical codes and equipment requirements.
  

Where It Works Best

• The THQC1120WL is commonly used in residential service panels, commercial electrical distribution systems, lighting circuits, receptacle circuits, HVAC equipment, and other 120VAC branch circuit applications requiring 20-amp overcurrent protection. Its compact design and lug-lug connection style make it particularly useful where reliable protection and efficient wiring connections are priorities.
• For electricians, facility maintenance teams, and contractors looking for a dependable 20-amp Q-Line circuit breaker, the THQC1120WL provides the protection and performance needed to help keep electrical systems running safely.