THHQB32090 - 90Amp Circuit Breaker

THHQB32090 - 90 Amp Circuit Breaker

The THHQB32090 is a 90-amp, 3-pole molded-case circuit breaker designed to provide dependable overcurrent and short-circuit protection in your commercial, industrial, and heavy-duty electrical distribution systems. As part of the trusted THHQB Q-Line series, this bolt-on circuit breaker offers secure installation and reliable performance in panelboard applications where consistent circuit protection is essential. Featuring a 22kA interrupting capacity at 240VAC, the THHQB32090 is engineered to help you safeguard electrical equipment, conductors, and connected loads from potentially damaging fault conditions.

Built for demanding environments, this breaker incorporates a compact footprint while delivering the power-handling capabilities required for larger branch circuits and distribution systems. Its bolt-on mounting design helps you to ensure a stable connection, reducing the likelihood of movement or loosening over time. In addition, the breaker is HACR rated, making it suitable for heating, air conditioning, and refrigeration applications where dependable protection is critical to system operation. Whether you are working on commercial facilities, manufacturing plants, institutional buildings, or other electrical infrastructure projects, the THHQB32090 delivers the performance and reliability professionals expect from a Q-Line molded-case circuit breaker.

Key Features and Benefits

• 90 Amp current rating: 90 Amp current rating for medium- to high-capacity electrical circuits
• 3-pole configuration: 3-pole configuration designed for three-phase power distribution systems
• 22kA interrupting capacity at 240VAC: 22kA interrupting capacity at 240VAC for enhanced fault protection
• Bolt-on mounting design: Bolt-on mounting design provides a secure and stable installation
• Q-Line series construction: Q-Line series construction for dependable electrical performance
• HACR rated: HACR rated for heating, air conditioning, and refrigeration applications
• Molded case design: Molded case design helps protect internal components from environmental conditions
• Suitable for commercial, industrial, and institutional electrical systems: Suitable for commercial, industrial, and institutional electrical systems
• Compact dimensions: Compact dimensions help maximize available panel space
  

Technical Specifications

• Part Number: THHQB32090
  
• Type: THHQB
  
• Circuit Breaker Style: Molded Case Circuit Breaker
  
• Mounting Type: Bolt-On
  
• Series: Q-Line
  
• Poles: 3
  
• Amperage Rating: 90A
  
• Voltage Rating: 240VAC
  
• Interrupting Capacity (A.I.C.): 22kA @ 240VAC
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 3.5 in.
  • Width: 3.0 in.
  • Depth: 2.81 in.

Material Compliance and Certifications

• HACR Rated: HACR (Heating, Air Conditioning, and Refrigeration) rated
• Industry Standards: Manufactured and tested to applicable industry standards for molded case circuit breakers
• Application Requirements: Designed for use in appropriately rated electrical distribution equipment and panelboard systems
• Compatibility Verification: Verify compatibility with specific equipment and installation requirements before application
  

Where It Works Best

• Commercial buildings and office facilities
• Industrial manufacturing and processing environments
• Electrical distribution panelboards
• HVAC and refrigeration systems
• Institutional and educational facilities
• Retail and mixed-use developments
• Three-phase branch circuit protection
• Equipment feeders and power distribution circuits requiring a 90A, 3-pole breaker
• When reliable overcurrent protection and secure bolt-on installation are priorities, the THHQB32090 provides an effective solution for maintaining the safety and continuity of electrical systems.