QOB350VH - 50 Amp Circuit Breaker

QOB350VH - 50 Amp Circuit Breaker

The QOB350VH is a 3-pole, 50-amp bolt-on thermal magnetic circuit breaker designed to provide dependable overcurrent and short-circuit protection for your commercial and industrial electrical distribution systems. Built for applications requiring a secure bolt-on connection, this breaker helps you to maintain a stable electrical connection in panelboards while delivering consistent performance under demanding operating conditions. With a 22 kA interrupting rating at 240 VAC, the QOB350VH is well-suited for protecting branch circuits serving equipment, lighting, motors, and other critical loads. Its thermal-magnetic trip mechanism responds to both prolonged overloads and instantaneous fault conditions, helping you safeguard electrical equipment and support system reliability.

Key Features and Benefits

• 50 Amp Current Rating: 50 Amp continuous current rating for a wide range of commercial and industrial branch circuit applications.
• 3-Pole Configuration: A 3-pole configuration protects three-phase electrical systems.
• Bolt-On Mounting: Bolt-on mounting design offers a secure installation that helps reduce movement and maintain reliable electrical contact.
• Thermal Magnetic Protection: Thermal magnetic trip technology protects against both overloads and short circuits for dependable circuit protection.
• 22kA Interrupting Capacity: 22 kA interrupting capacity at 240 VAC helps safely interrupt high fault currents within its rated specifications.
• Compact Footprint: Compact footprint allows installation in compatible panelboards while maximizing available panel space.
• Dependable Performance: Designed to deliver consistent performance in demanding electrical environments.
  

Technical Specifications

• Part Number: QOB350VH
  
• Type: QOB-VH
  
• Circuit Breaker Style: Bolt-On, Thermal Magnetic
  
• Poles: 3
  
• Amperage: 50 Amps
  
• Interrupting Rating: 22kA @ 240VAC
  
• Voltage Rating: 240VAC
  
• Dimensions:
  • Height: 3.5 in.
  • Width: 2.25 in.
  • Depth: 2.5 in.

Material Compliance and Certifications

• Industry Standards: The QOB350VH is manufactured to meet applicable industry standards for molded case circuit breakers. Compatibility with certifications and regulatory requirements depends on the specific installation and application.
• Installation Guidance: Electrical equipment should always be installed and maintained in accordance with the National Electrical Code (NEC), local electrical codes, and manufacturer recommendations by qualified personnel.
  

Where It Works Best

• The QOB350VH is an excellent choice for protecting three-phase branch circuits in a variety of commercial and industrial environments, including:
  • Commercial office buildings
  • Manufacturing and processing facilities
  • Retail centers
  • Educational and institutional buildings
  • Multi-tenant commercial properties
  • Electrical distribution panelboards
  • HVAC equipment, motors, lighting systems, and other three-phase loads requiring 50-amp circuit protection
  Its combination of a secure bolt-on design, thermal-magnetic protection, and 22kA interrupting capacity at 240VAC makes the QOB350VH a dependable solution for maintaining electrical system safety and minimizing the risk of damage from overloads and fault conditions.