THQL2120 - 20Amp Circuit Breaker

THQL2120 - 20 Amp Circuit Breaker

The THQL2120 circuit breaker is a 20-amp, 2-pole molded-case circuit breaker designed to provide dependable overcurrent and short-circuit protection in residential, commercial, and light industrial electrical distribution systems. As part of the trusted THQL Q-Line series, this plug-on breaker offers straightforward installation and reliable performance in compatible load centers and panelboards. With a 10,000 AIC rating at 120/240VAC, the THQL2120 is built to help you safeguard electrical equipment, branch circuits, and connected loads from potentially damaging fault conditions. Its compact footprint and proven design make it a practical choice for electrical professionals performing new installations, upgrades, or maintenance work.

Whether you're protecting HVAC equipment, lighting circuits, receptacle circuits, or other branch applications, the THQL2120 delivers consistent protection while supporting safe system operation. Its HACR rating further enhances its suitability for heating, air conditioning, and refrigeration equipment applications that require code-compliant circuit protection.

Key Features and Benefits

• 20 Amp Rating: Provides reliable protection for 20-amp branch circuits.
• 2-Pole Configuration: Designed for applications requiring protection across two energized conductors.
• 10kA Interrupting Capacity: Rated at 10,000 AIC at 120/240VAC to help protect against fault currents.
• THQL Q-Line Design: Compatible with designated Q-Line load centers and panelboards.
• Plug-On Installation: Allows for efficient installation and replacement in compatible electrical panels.
• HACR Rated: Suitable for use with heating, air conditioning, and refrigeration equipment applications.
• Molded Case Construction: Built for dependable circuit protection and long service life.
• Space-Efficient Footprint: Compact dimensions help maximize panel space utilization.
  

Technical Specifications

• Part Number: THQL2120
  
• Type: THQL
  
• Circuit Breaker Style: Molded Case Circuit Breaker
  
• Series: Q-Line
  
• Poles: 2
  
• Amperage Rating: 20 Amps
  
• Voltage Rating: 120/240 VAC
  
• Interrupting Rating (AIC): 10kA
  
• Mounting Type: Plug-On
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 3.31 in.
  • Width: 2.00 in.
  • Depth: 2.81 in.

Material Compliance and Certifications

• Industry Standards: The THQL2120 is manufactured for use in electrical distribution systems that require dependable overcurrent protection and compliance with applicable industry standards. As a molded case circuit breaker within the Q-Line family, it is engineered to meet recognized electrical performance requirements for safe operation in compatible installations.
• Installation Compliance: Always verify local code requirements and application-specific compliance needs before installation.
  

Where It Works Best

• Residential load centers and breaker panels
• Commercial branch circuit protection
• HVAC and refrigeration equipment circuits
• Lighting and receptacle circuits
• Electrical system upgrades and maintenance projects
• General-purpose 120/240VAC distribution systems
• Its combination of a 20-amp rating, 2-pole configuration, HACR certification, and plug-on convenience makes it an excellent choice for protecting critical electrical circuits while maintaining reliable system performance.