THQB32080ST1 - 80Amp Circuit Breaker

THQB32080ST1 - 80 Amp Circuit Breaker

The THQB32080ST1 is an 80 amp, 3-pole bolt-on circuit breaker from the THQB Q-Line series, built for protecting your three-phase electrical systems from overloads and short circuits. Equipped with a 120VAC shunt trip, this breaker can be opened remotely when connected to an external control circuit, making it a practical choice for emergency shutdown systems, safety controls, and building automation applications. Its bolt-on design provides a secure connection within compatible panelboards, while the molded case construction helps protect internal components from everyday wear in commercial and industrial environments. Rated for 10,000 AIR at 240VAC, the THQB32080ST1 is also HACR rated, making it suitable for installations involving heating, ventilation, air conditioning, and refrigeration equipment. Whether you're maintaining an existing electrical distribution system or replacing a breaker in a facility that requires remote trip capability, the THQB32080ST1 offers a straightforward solution that combines circuit protection with added control flexibility.

Key Features and Benefits

• 80 amp current rating
• 3-pole configuration for three-phase power systems
• Built-in 120VAC shunt trip for remote tripping capability
• Bolt-on mounting for a secure installation
• 10kA interrupting rating at 240VAC
• HACR rated for HVAC and refrigeration applications
• Molded case design helps protect internal operating mechanisms
• Part of the THQB Q-Line breaker family
• Suitable for commercial and industrial power distribution systems

Technical Specifications

• Part Number: THQB32080ST1
  
• Type: THQB
  
• Series: Q-Line
  
• Mounting Style: Bolt-On
  
• Poles: 3
  
• Amperage: 80A
  
• Voltage Rating: 240VAC
  
• Interrupting Rating: 10kA @ 240VAC
  
• Shunt Trip: 120VAC
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 3.5 in.
  • Width: 4.0 in.
  • Depth: 2.81 in.

Material Compliance and Certifications

• HACR rated
• Manufactured for use in compatible electrical distribution equipment
• Designed to meet applicable industry performance requirements for molded case circuit breakers

Where It Works Best

• The THQB32080ST1 is commonly used in commercial buildings, manufacturing facilities, schools, retail locations, and other properties that utilize three-phase electrical distribution. The integrated shunt trip makes it especially useful in systems requiring remote disconnect capability, including emergency stop circuits, safety systems, HVAC controls, and building management systems.