THQC2120WL - 20Amp Circuit Breaker

THQC2120WL - 20 Amp Circuit Breaker

When your dependable circuit protection is a priority, the THQC2120WL 20 Amp 2 Pole Circuit Breaker delivers the performance that electricians, facility managers, and maintenance professionals rely on. Designed for use in 120/240 VAC electrical systems, this Q-Line molded case circuit breaker helps you protect circuits and connected equipment from overloads and short circuits before they cause costly downtime or damage.

What sets the THQC2120WL apart is its internal common trip design, which automatically disconnects both poles when a fault occurs. This added layer of protection is especially important in applications where maintaining electrical safety and equipment integrity is critical. The breaker's cable-in/cable-out (lug-lug) configuration also provides installation flexibility, making it a practical choice for a variety of power distribution setups.

Whether you're servicing an HVAC system, upgrading a panel, or replacing an existing breaker, the THQC2120WL offers the reliability and straightforward performance needed to keep electrical systems operating safely and efficiently. Its compact footprint allows it to fit neatly within panel spaces while still delivering a 10,000 AIC interrupting rating, providing confidence when protecting circuits exposed to higher fault current levels.

Key Features and Benefits

• 20 Amp Continuous Current Rating: 20 Amp continuous current rating for dependable branch circuit protection.
• 2-Pole Design: 2-pole design protects 120/240VAC circuits.
• Internal Common Trip Mechanism: The internal common trip mechanism automatically disconnects both poles during fault conditions.
• 10kA AIC Interrupting Capacity: 10kA AIC interrupting capacity helps protect equipment from damaging short-circuit currents.
• Q-Line Series Construction: The Q-Line series construction is known for reliable performance in electrical distribution applications.
• Cable-In/Cable-Out (Lug-Lug) Terminals: Cable-in/Cable-out (Lug-Lug) terminals support flexible wiring configurations.
• HACR Rated: HACR rated for qualifying heating, air conditioning, and refrigeration equipment.
• Compact Molded Case Design: Compact molded case design helps maximize available panel space.
• Ideal for Multiple Applications: Ideal for replacement projects, system maintenance, and new installations.

Technical Specifications

• Part Number: THQC2120WL
  
• Type: THQC
  
• Circuit Breaker Type: Molded Case Circuit Breaker
  
• Poles: 2
  
• Current Rating: 20 Amps
  
• Voltage Rating: 120/240VAC
  
• Interrupting Rating: 10kA AIC
  
• Trip Mechanism: Internal Common Trip
  
• Connection Type: Cable-In/Cable-Out (Lug-Lug)
  
• Series: Q-Line
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 3.94 in.
  • Width: 2.00 in.
  • Depth: 2.63 in.

Material Compliance and Certifications

• HACR Rated: HACR Rated for approved heating, air conditioning, and refrigeration applications.
• Electrical Distribution Applications: Designed and manufactured for electrical distribution and overcurrent protection applications.
• Molded Case Construction: Molded case construction engineered for long-term durability and dependable operation.
• Installation Requirements: Installation should comply with all applicable electrical codes and project requirements.

Where It Works Best

• The THQC2120WL is a strong fit for residential service panels, commercial electrical systems, HVAC equipment circuits, distribution panels, maintenance replacements, and light industrial applications. Its 2-pole configuration and common trip functionality make it particularly well-suited for 120/240VAC circuits where coordinated disconnection and reliable overcurrent protection are essential. From routine electrical upgrades to critical equipment protection, this breaker is built to help keep systems running safely and efficiently.