THQL1150 - 50Amp Circuit Breaker

THQL1150 - 50 Amp Circuit Breaker

The THQL1150 is a 50-amp, single-pole circuit breaker used in compatible Q-Line panelboards and load centers. It is designed to protect branch circuits from overloads and short circuits in 120VAC electrical systems. The plug-on mounting style allows for quick installation and replacement, making it a common choice for service work, maintenance projects, and panel upgrades.

This breaker features a 10kA interrupting rating at 120VAC and is constructed with a molded case housing to help protect internal components during normal operation. The THQL1150 is also HACR rated, allowing it to be used in approved heating, air conditioning, and refrigeration applications. Its narrow 1-inch width helps you to conserve valuable space inside electrical panels while providing the protection required for higher-amperage circuits.

Key Features and Benefits

• 50 amp current rating
• Single-pole configuration
• THQL type breaker
• Plug-on installation
• 10kA interrupting capacity at 120VAC
• HACR rated
• Molded case construction
• Designed for use in compatible Q-Line equipment

Technical Specifications

• Part Number: THQL1150
  
• Type: THQL
  
• Poles: 1
  
• Amperage: 50A
  
• Voltage Rating: 120VAC
  
• Interrupting Capacity: 10kA @ 120VAC
  
• Mounting: Plug-On
  
• Series: Q-Line
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 3.31 in.
  • Width: 1.00 in.
  • Depth: 2.81 in.

Material Compliance and Certifications

• HACR Rated
• Molded case circuit breaker construction
• Manufactured for installation in compatible Q-Line electrical distribution equipment
• Installation should be performed in accordance with applicable electrical codes and manufacturer requirements.

Where It Works Best

• The THQL1150 is commonly used for dedicated branch circuits serving larger electrical loads in residential and commercial buildings. Typical applications include HVAC equipment, refrigeration systems, workshop circuits, mechanical equipment, and other installations requiring a 50-amp single-pole breaker. It is often selected for panel maintenance, breaker replacement, and electrical system upgrades that require compatibility with Q-Line equipment.