QOB240 - 40 Amp Circuit Breaker

QOB240 - 40 Amp Circuit Breaker

When you need dependable circuit protection that you can count on, the QOB240 bolt-on circuit breaker is a practical choice for keeping your electrical system operating safely and efficiently. Designed as a 2-pole, 40-amp circuit breaker, it provides reliable overload and short-circuit protection for 120/240VAC electrical systems while delivering the secure fit that bolt-on breakers are known for. Whether you're replacing a worn breaker, upgrading an existing panel, or completing a new installation, the QOB240 offers the dependable performance electricians, contractors, and maintenance professionals expect. Its bolt-on mounting design helps create a secure mechanical and electrical connection, making it an excellent solution for commercial facilities, industrial environments, and residential applications where long-term reliability matters. With a 10kA interrupting rating at 120/240VAC, this breaker is built to safely interrupt fault currents and help protect wiring, equipment, and connected loads from electrical damage. Compact yet capable, the QOB240 is designed to fit compatible Type QOB panelboards, making installation straightforward while helping maintain the integrity of your electrical distribution system.

Key Features and Benefits

• 40 Amp Current Rating: 40 Amp current rating for dependable branch circuit protection.
• 2-Pole Design: 2-pole design for 120/240 VAC applications that require simultaneous disconnection of both conductors.
• Bolt-On Mounting: Bolt-on mounting provides a secure installation that helps reduce movement and maintain reliable electrical contact.
• 10 kA Interrupting Capacity: 10 kA interrupting capacity at 120/240 VAC helps protect against overloads and short circuits.
• Compatible with Type QOB Panelboards: Compatible with Type QOB panelboards.
• Compact Design: Compact design makes it well-suited for maintenance, replacement, and new installations.
• Equipment Protection: Helps protect electrical equipment while supporting safe, consistent system operation.
  

Technical Specifications

• Part Number: QOB240
  
• Type: QOB
  
• Mounting Style: Bolt-On
  
• Poles: 2
  
• Amperage: 40 Amps
  
• Voltage Rating: 120/240VAC
  
• Interrupting Rating: 10kA @ 120/240VAC
  
• Dimensions:
  • Height: 3.0 in.
  • Width: 1.5 in.
  • Depth: 2.5 in.

Material Compliance and Certifications

• Industry Standards: The QOB240 is manufactured for use in electrical power distribution systems and is designed to meet applicable industry standards for performance and safety within its product class.
• Installation Requirements: For optimal performance, always verify compatibility with your panelboard and follow all applicable electrical codes and manufacturer installation guidelines. A qualified electrical professional should perform the installation.
  

Where It Works Best

• The QOB240 is a versatile circuit breaker well-suited for a wide range of electrical applications requiring dependable branch-circuit protection. Common installations include:
  • Commercial buildings
  • Industrial facilities
  • Office buildings
  • Retail locations
  • Educational institutions
  • Multi-family residential properties
  • Electrical distribution panels
  • Equipment control panels
  • Maintenance, repair, and panel upgrade projects
  Whether you're replacing an existing breaker or installing one in a new system, the QOB240 40 Amp 2 Pole Bolt-On Circuit Breaker delivers the reliable protection and secure installation professionals rely on to keep electrical systems running smoothly.