THQL2145 - 45Amp Circuit Breaker

THQL2145 - 45 Amp Circuit Breaker

The THQL2145 circuit breaker is a dependable 45 amp, 2-pole molded case circuit breaker designed to provide overcurrent and short-circuit protection for your residential, commercial, and light industrial electrical systems. As part of the trusted THQL Q-Line series, this plug-on breaker is engineered for compatibility with select load centers and panelboards requiring THQL-style breakers. With a 10kA interrupting capacity at 120/240VAC, the THQL2145 helps you to protect electrical circuits from damage caused by overloads and fault conditions, supporting safer and more reliable system operation.

Built with durability and ease of installation in mind, this breaker features a compact plug-on design that simplifies panel integration while maintaining a secure electrical connection. Its HACR rating makes it suitable for applications involving heating, air conditioning, and refrigeration equipment, offering versatility across a wide range of electrical installations. Whether used in new construction, facility upgrades, or routine maintenance projects, the THQL2145 delivers consistent performance where dependable circuit protection matters most.

Key Features and Benefits

• 45 amp current rating for branch circuit protection: Provides reliable overcurrent protection for circuits requiring a 45 amp breaker.
• 2-pole configuration: Designed for 120/240VAC applications.
• THQL series design: Compatible with select Q-Line load centers and panelboards requiring THQL-style breakers.
• Plug-on mounting style: Allows for straightforward installation.
• 10kA interrupting capacity: Helps protect against short-circuit events.
• HACR rated: Suitable for heating, air conditioning, and refrigeration equipment applications.
• Molded case construction: Designed for long service life.
• Compact footprint: Helps maximize available panel space.
• Versatile application: Suitable for residential, commercial, and light industrial electrical systems.
  

Technical Specifications

• Part Number: THQL2145
  
• Type: THQL
  
• Circuit Breaker Style: Molded Case Circuit Breaker
  
• Series: Q-Line
  
• Mounting Method: Plug-On
  
• Poles: 2
  
• Amperage Rating: 45 Amps
  
• Voltage Rating: 120/240VAC
  
• Interrupting Capacity (A.I.C.): 10kA
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 3.31 in.
  • Width: 2.00 in.
  • Depth: 2.81 in.

Material Compliance and Certifications

• Industry Standards: The THQL2145 circuit breaker is manufactured for use in accordance with applicable industry standards governing molded case circuit breakers and electrical distribution equipment.
• HACR Rating: Its HACR rating supports use with approved heating, ventilation, air conditioning, and refrigeration systems.
• Installation Requirements: Proper installation should always be performed in accordance with local electrical codes, applicable regulations, and equipment manufacturer requirements.
  

Where It Works Best

• The THQL2145 is well suited for branch circuit protection in residential homes, apartment buildings, commercial offices, retail facilities, maintenance shops, and light industrial environments. It is particularly useful in applications requiring a 45 amp, two-pole breaker for equipment operating on 120/240VAC circuits, including HVAC systems, air conditioning units, refrigeration equipment, water heaters, and other higher-demand electrical loads requiring reliable overcurrent protection.