QOB290 - 90 Amp Circuit Breaker

QOB290 - 90 Amp Circuit Breaker

The QOB290 is a 2-pole, 90-amp bolt-on circuit breaker built for use in your compatible electrical panelboards operating on 120/240VAC systems. Its primary job is simple: to protect branch circuits by interrupting power when an overload or short circuit occurs. That protection helps you to reduce the risk of damage to wiring and connected equipment while keeping the electrical system operating safely.

The bolt-on mounting style provides the breaker with a firm connection within the panel, making it a common choice in commercial buildings, industrial facilities, and larger residential installations. Whether you're replacing an existing breaker or matching the specifications of an installed panel, the QOB290 offers the ratings many electricians and maintenance teams look for. Its compact design also makes it easier to fit into compatible panelboards without taking up unnecessary space.

Key Features and Benefits

• 90-amp current rating
• Two-pole configuration
• Bolt-on mounting design
• Rated for 120/240VAC systems
• 10k A.I.C. interrupting capacity
• Helps protect circuits from overloads and short circuits
• Designed for use in compatible bolt-on panelboards
  

Technical Specifications

• Part Number: QOB290
  
• Type: QOB
  
• Mounting Style: Bolt-On
  
• Poles: 2
  
• Amperage: 90A
  
• Voltage: 120/240VAC
  
• A.I.C. Rating: 10kA
  
• Dimensions:
  • Height: 3.5 in.
  • Width: 1.5 in.
  • Depth: 2.5 in.

Material Compliance and Certifications

• Industry Standards: This molded case circuit breaker is manufactured for use in compatible electrical distribution equipment and is intended for installation in accordance with applicable electrical codes and the manufacturer's installation requirements.
  

Where It Works Best

• The QOB290 is commonly installed in commercial buildings, office spaces, manufacturing facilities, apartment complexes, and residential properties where a compatible 2-pole, 90-amp bolt-on circuit breaker is required. It's often used to protect larger branch circuits that serve HVAC equipment, subpanels, motors, and other high-amperage electrical loads.