THQLQ154015 - Quad 15A-40A-15A Circuit Breaker

THQLQ154015 - Quad 15A-40A-15A Circuit Breaker

The THQLQ154015 quadplex circuit breaker is a smart solution when you need to add circuits but don’t have extra panel space to work with. This unit combines two 15-amp single-pole breakers on the outside with a 40-amp 2-pole breaker in the center (15/40/15 configuration), giving you three protected circuits in one compact footprint. It’s part of the THQLQ Q-Line series and features a plug-on design for a secure, straightforward installation in compatible load centers.

Because it’s HACR rated, this breaker is suitable for heating, air conditioning, and refrigeration equipment, making it a practical choice for residential and light commercial applications. The molded case construction is built for consistent tripping performance and reliable overcurrent protection, helping safeguard wiring and connected equipment from overloads and short circuits. For electricians working on upgrades, remodels, or panel reconfigurations, this quad breaker offers flexibility without the need for a larger panel.

Key Features and Benefits

• 15/40/15 Amp Configuration – Two 15A single-pole breakers and one 40A double-pole breaker in a single quad unit
• Quadplex Design – Maximizes panel space by combining multiple circuits into one breaker footprint
• THQLQ Frame Type – Designed for use in compatible Q-Line load centers
• Plug-On Mounting – Quick and secure connection to the panel bus
• HACR Rated – Suitable for HVAC and refrigeration circuit protection
• Molded Case Construction – Built for dependable overcurrent protection

Technical Specifications

• Part Number: THQLQ154015
• Amperage Rating: 15/40/15 Amps
• Poles: Quad (Two 1-pole breakers outside, one 2-pole breaker center)
• Frame Type: THQLQ
• Breaker Type: Quadplex Molded Case Circuit Breaker
• Mounting Style: Plug-On
• HACR Rating: Yes
• Height: 3.31 in.
• Ship Weight: 2.0 lbs

Material Compliance and Certifications

• Industry Standards: The THQLQ154015 meets industry standards for molded case circuit breakers and is HACR rated, confirming suitability for heating and cooling equipment applications.
• Code Compliance: As with all electrical components, installation should comply with the National Electrical Code (NEC) and local electrical codes, and the breaker should only be used in approved compatible panels.

Where It Works Best

• Residential load centers with limited available breaker spaces
• Panel upgrades and remodels
• HVAC and refrigeration circuits
• Light commercial electrical systems
• Situations where adding a subpanel isn’t practical