THQL21WY20 - 20Amp Circuit Breaker

THQL21WY20 - 20 Amp Circuit Breaker

The THQL21WY20 is a 20-amp, 2-pole molded case circuit breaker designed to provide dependable overcurrent and short-circuit protection in your residential and light commercial electrical systems. As part of the trusted THQL Q-Line series, this plug-on circuit breaker features a switching neutral design, helping you to support modern load management requirements while simplifying installation in compatible panelboards. With a 10kA interrupting capacity at 120/240VAC, the THQL21WY20 is built to help safeguard branch circuits from electrical faults that can damage equipment or create safety concerns.

Engineered for consistent performance, this breaker combines a compact footprint with reliable protection, making it a practical choice for new installations, panel upgrades, and maintenance projects. Its HACR rating also makes it suitable for applications involving heating, air conditioning, and refrigeration equipment where approved overcurrent protection is required. Whether protecting lighting circuits, receptacle circuits, or dedicated equipment loads, the THQL21WY20 delivers the performance and durability that electrical professionals expect from the THQL product family.

Key Features and Benefits

• 20 Amp Rating: For reliable branch circuit protection.
• 2-Pole Configuration: Designed for 120/240VAC applications.
• Switching Neutral Design: Supports compatible modern electrical systems and panel configurations.
• Plug-On Installation: Helps streamline panelboard installation and replacement.
• 10kA Interrupting Capacity (A.I.C.): Provides dependable fault-current protection.
• Q-Line Series Construction: Is designed for compatibility with designated Q-Line load centers and panelboards.
• HACR Rated: For approved heating, air conditioning, and refrigeration applications.
• Compact Dimensions: Allow efficient use of panel space while maintaining dependable protection.
  

Technical Specifications

• Part Number: THQL21WY20
  
• Type: THQL
  
• Poles: 2
  
• Amperage Rating: 20A
  
• Voltage Rating: 120/240VAC
  
• Interrupting Rating: 10kA A.I.C.
  
• Mounting Style: Plug-On
  
• Series: Q-Line
  
• Special Features: Switching Neutral
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 3.31 in.
  • Width: 2.00 in.
  • Depth: 2.81 in.

Material Compliance and Certifications

• Industry Standards: The THQL21WY20 is manufactured to meet applicable industry standards for molded case circuit breakers and is designed for use in compatible electrical distribution equipment.
• HACR Rating: The breaker's HACR rating supports applications involving heating, ventilation, air conditioning, and refrigeration systems where code-compliant overcurrent protection is required.
• Installation Considerations: Always verify compatibility with the intended panelboard and consult applicable local electrical codes before installation.
  

Where It Works Best

• The THQL21WY20 is well-suited for residential homes, multifamily properties, light commercial facilities, and electrical distribution systems requiring a 20-amp, 2-pole circuit breaker. Common applications include protection for HVAC equipment, water heaters, small appliances, dedicated branch circuits, and other 120/240VAC loads. Its switching neutral configuration and plug-on design make it especially useful in compatible panelboards where efficient installation and reliable circuit protection are priorities.