Q21515 - Quadplex 15/15 Circuit Breaker

Q21515 - Quadplex 15/15 Circuit Breaker

If you’re replacing a Q21515 circuit breaker or need a compact breaker for a compatible panel, this 15-amp Type QT quadplex breaker covers the key requirements without taking up more panel space than necessary. The Q21515 is a plug-in breaker rated for 120/240 VAC with a 10 kAIC rating. Its quadplex configuration fits multiple circuit functions into a compact 2-inch-wide design, which can be especially useful in panels with limited space. It’s also HACR-rated, so it can be used in qualifying heating, air-conditioning, and refrigeration applications that call for an HACR-rated breaker. Measuring approximately 3.13 inches high, 2 inches wide, and 2.56 inches deep, the Q21515 is a practical choice for replacement, maintenance, and other compatible electrical applications. Before installing, it’s important to match the breaker to the panel and confirm the part number, amperage, voltage, and interrupting rating required for the job.

Key Features and Benefits

• 15-amp rating for circuits requiring 15A overcurrent protection.
• A quadplex configuration makes efficient use of space in compatible electrical panels.
• Rated for 120/240VAC applications.
• 10k AIC rating provides a 10,000-amp interrupting capacity under the specified conditions.
• Plug-in construction allows for straightforward installation in compatible equipment.
• Type QT design for panels specifically designed to accept this breaker type.
• HACR rated for qualifying heating, air-conditioning, and refrigeration applications.
• Compact 2-inch width is useful when panel space is limited.
• Specified for a 40°C temperature rating.

Technical Specifications

• Part Number: Q21515
  
• Type: QT
  
• Configuration: Quadplex
  
• Amperage: 15 A
  
• Voltage: 120/240VAC
  
• A.I.C. Rating: 10k
  
• Installation Type: Plug-In
  
• HACR Rated: Yes
  
• Temperature Rating: 40°C
  
• Height: 3.13 in.
  
• Width: 2.0 in.
  
• Depth: 2.56 in.
  

Material Compliance and Certifications

• The Q21515 breaker is HACR rated and has a specified 40°C rating. This makes it appropriate for qualifying heating, air-conditioning, and refrigeration equipment when an HACR-rated breaker is required.
• No additional certification or material-compliance claims should be assumed without supporting product documentation. Check the breaker markings, panel requirements, and applicable electrical codes before installation.

Where It Works Best

• The Q21515 works well when you need to replace an existing breaker with matching specifications or when a compatible panel specifically calls for a Type QT quadplex plug-in circuit breaker. The compact configuration is particularly helpful in applications where panel space is tight.
• It can also be used for qualifying HVAC and refrigeration equipment that requires an HACR-rated breaker. As with any replacement circuit breaker, matching the part number alone isn’t enough. Confirm the 15-amp rating, 120/240VAC voltage, 10 kAIC rating, Type QT configuration, and panel compatibility before installation.