THQB32090 - 90Amp Circuit Breaker

THQB32090 - 90 Amp Circuit Breaker

The THQB32090 is a 90-amp, 3-pole molded-case circuit breaker designed for dependable circuit protection in your commercial, industrial, and light-industrial electrical distribution systems. As part of the trusted THQB Q-Line series, this bolt-on breaker delivers reliable overcurrent and short-circuit protection while helping maintain the safety and continuity of electrical equipment and power distribution networks. Its compact footprint allows for efficient installation in compatible panelboards and distribution equipment, making it a practical choice for both new installations and replacement applications.

Engineered for use on 240VAC systems with a 10kA interrupting capacity, the THQB32090 helps protect conductors, equipment, and connected loads from damaging fault conditions. The bolt-on mounting design provides a secure connection that can help you reduce movement and improve long-term performance in demanding electrical environments. Additionally, this breaker is HACR rated, making it suitable for heating, air conditioning, and refrigeration equipment applications where dependable circuit protection is essential.

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 for three-phase power distribution systems.
• Bolt-On Mounting Design: Bolt-on mounting design for secure installation and dependable electrical contact.
• 10kA Interrupting Capacity: 10kA interrupting capacity at 240VAC for protection against fault currents.
• THQB Q-Line Series: Part of the THQB Q-Line breaker family.
• HACR Rated: HACR rated for heating, air conditioning, and refrigeration equipment applications.
• Molded Case Construction: Molded case construction designed for durability and consistent operation.
• Compact Dimensions: Compact dimensions help maximize available panel space.
• Versatile Applications: Suitable for commercial, industrial, and institutional electrical systems.

Technical Specifications

• Part Number: THQB32090
  
• Type: THQB
  
• Circuit Breaker Style: Molded Case Circuit Breaker
  
• Mounting Type: Bolt-On
  
• Poles: 3
  
• Amperes: 90A
  
• Voltage Rating: 240VAC
  
• Interrupting Capacity: 10kA @ 240VAC
  
• HACR Rated: Yes
  
• Product Line: Q-Line
  
• Dimensions:
  • Height: 3.5 in.
  • Width: 3.0 in.
  • Depth: 2.81 in.

Material Compliance and Certifications

• Industry Standards: The THQB32090 is manufactured to meet applicable industry standards for molded-case circuit breakers and electrical distribution equipment.
• HACR Rating: Its HACR rating confirms suitability for use with heating, ventilation, air conditioning, and refrigeration systems where code-compliant circuit protection is required.
• Installation Requirements: Always verify installation requirements and local electrical codes before application.

Where It Works Best

• The THQB32090 is well-suited for commercial buildings, manufacturing facilities, educational campuses, retail locations, office complexes, and other three-phase electrical systems requiring reliable 90A circuit protection. It is commonly used in panelboards, distribution equipment, HVAC installations, refrigeration systems, motor circuits, and general power distribution applications where secure bolt-on installation and dependable overcurrent protection are important.