THQB1150 - 50Amp Circuit Breaker

THQB1150 - 50 Amp Circuit Breaker

The THQB1150 is a 50-amp, 1-pole circuit breaker designed for use in Q-Line panelboards where dependable circuit protection is required. Featuring a bolt-on mounting design, this breaker provides a secure connection and helps maintain system reliability in both new installations and replacement projects. Its molded case construction is built to handle everyday electrical demands while helping protect circuits from overloads and short circuits.

Because it is HACR rated, the THQB1150 is commonly used in heating, air conditioning, and refrigeration applications, as well as general-purpose branch circuit protection. Its compact footprint makes it a practical choice when panel space is limited, while the 10kA interrupting rating at 120VAC provides an added level of protection in the event of a fault condition.

Whether you're maintaining an existing electrical system or replacing a damaged breaker, the THQB1150 offers a straightforward solution for keeping circuits protected and equipment operating safely.

Key Features and Benefits

• 50 amp current rating: 50 amp current rating.
• Single-pole configuration: Single-pole configuration.
• Bolt-on mounting design: Bolt-on mounting design for a secure installation.
• Compatible with Q-Line panel applications: Compatible with Q-Line panel applications.
• HACR rated: HACR rated for heating, air conditioning, and refrigeration equipment.
• Molded case construction: Molded case construction for dependable circuit protection.
• Overcurrent protection: Designed to protect against overloads and short circuits.
• Compact footprint: Compact size helps maximize available panel space.
  

Technical Specifications

• Part Number: THQB1150
  
• Type: THQB
  
• Poles: 1
  
• Amperage: 50A
  
• Voltage Rating: 120VAC
  
• Interrupting Rating (A.I.C.): 10kA
  
• Mounting Style: Bolt-On
  
• Dimensions:
  • Height: 3.5 in.
  • Width: 1.0 in.
  • Depth: 2.81 in.
• Construction: Molded Case
  
• Rating: HACR Rated
  
• Series: Q-Line
  

Material Compliance and Certifications

• HACR Rated: HACR Rated.
• Molded Case Design: Molded case circuit breaker design.
• Q-Line Compatibility: Manufactured for use in compatible Q-Line electrical distribution systems.
• Protection Standards: Designed to provide overcurrent and short-circuit protection in accordance with applicable industry standards.
  

Where It Works Best

• The THQB1150 is well-suited for commercial buildings, residential electrical systems, HVAC equipment, refrigeration units, and other branch circuit applications requiring a 50-amp, single-pole breaker. It is frequently used by electricians, maintenance professionals, and facility managers looking for a reliable replacement or expansion component for compatible Q-Line panelboards.