THQLQ203020 - Quad 20A-30A-20A Circuit Breaker

THQLQ203020 - Quad 20A-30A-20A Circuit Breaker

The THQLQ203020 quadplex circuit breaker is engineered to deliver dependable overcurrent protection in a compact, space-saving design. Built on the trusted THQLQ frame platform, this Q-Line plug-on molded case circuit breaker combines two single-pole 20A breakers on the outside with a 2-pole 30A breaker in the center—making it an efficient solution when panel space is limited but multiple circuits are required. Designed for consistent performance and long-term reliability, the THQLQ203020 helps safeguard branch circuits against overloads and short circuits while supporting HVAC and other high-demand applications thanks to its HACR rating. Whether you’re upgrading an existing load center or completing a new installation, this quadplex breaker offers the flexibility electricians and facility managers rely on.

Key Features and Benefits

• Quadplex Configuration (20/30/20 Amp): Two 1-pole 20A breakers on the outside and one 2-pole 30A breaker in the center for multi-circuit protection in a single compact unit.
• THQLQ Frame Type: Designed for compatibility with Q-Line load centers and panelboards that accept THQLQ series breakers.
• Plug-On Mounting: Simplifies installation and ensures a secure, stable connection to the bus bar.
• HACR Rated: Suitable for heating, air conditioning, and refrigeration equipment applications.
• Space-Saving Design: Maximizes panel capacity without sacrificing performance or safety.
• Molded Case Construction: Built for durability and consistent tripping characteristics under overload and short-circuit conditions.

Technical Specifications

• Part Number: THQLQ203020
• Poles: Quad (Two 1-Pole + One 2-Pole)
• Amperage Rating: 20/30/20 Amps
• Frame Type: THQLQ
• Breaker Type: Quadplex Molded Case Circuit Breaker
• Mounting Style: Plug-On
• Series: Q-Line
• HACR Rated: Yes
• Ship Weight: 2.0 lbs
• Dimensions (Height): 3.31 in

Material Compliance and Certifications

• HACR Rated for HVAC applications
• Manufactured to meet applicable industry standards for molded case circuit breakers
• Designed for use in load centers and panelboards compatible with THQLQ/Q-Line configurations

Where It Works Best

• The THQLQ203020 20/30/20A quad breaker is ideal for residential and light commercial load centers where panel space is limited but multiple circuits are needed. It’s particularly useful in applications requiring a 2-pole 30A breaker—such as certain HVAC units or larger appliances—alongside two independent 20A branch circuits. Electricians frequently choose this configuration when upgrading panels, remodeling properties, or optimizing capacity within existing electrical systems.