QOB150 - 50 Amp Circuit Breaker

QOB150 - 50 Amp Circuit Breaker

The QOB150 is a 1-pole, 50-amp bolt-on circuit breaker designed to provide dependable overcurrent and short-circuit protection for 120VAC electrical distribution systems. As part of the trusted QOB breaker family, this breaker features a secure bolt-on mounting design that helps maintain a reliable electrical connection in commercial, industrial, and OEM panelboard applications where vibration resistance and long-term performance are important. Whether you're replacing an existing breaker or completing a panel upgrade, the QOB150 delivers the protection and compatibility professionals expect for branch circuit applications. Its compact footprint also makes it well suited for installations where panel space is at a premium while still providing the performance needed for demanding electrical systems.

Key Features and Benefits

• 50 Amp current rating: For dependable branch circuit protection.
• Single-pole design: For 120VAC electrical systems.
• Bolt-on mounting: Provides a secure installation and helps maintain consistent electrical connections.
• 10kA interrupting capacity at 120VAC: For protection against available fault currents within its rating.
• Compact form factor: Fits panelboards designed for Type QOB circuit breakers.
• Suitable for replacement, maintenance, retrofit, and new electrical installations: Requiring a compatible Type QOB breaker.
  

Technical Specifications

• Part Number: QOB150
  
• Type: QOB
  
• Mounting Style: Bolt-On
  
• Poles: 1
  
• Amperes: 50A
  
• Voltage Rating: 120VAC
  
• Interrupting Rating (A.I.C.): 10kA @ 120VAC
  
• Dimensions:
  • Height: 3.0 in.
  • Width: 0.75 in.
  • Depth: 2.5 in.

Material Compliance and Certifications

• Industry Standards: Manufactured to meet applicable industry standards for molded case circuit breakers within the Type QOB product family.
• Installation Requirements: Designed for use in compatible electrical distribution equipment when installed according to applicable electrical codes and manufacturer specifications. Always verify compatibility with your panelboard and application requirements before installation.
  

Where It Works Best

• Commercial buildings
• Industrial facilities
• Office buildings
• Retail locations
• Educational institutions
• Healthcare facilities
• OEM equipment
• Electrical maintenance and panel upgrades
• Branch circuit protection in compatible bolt-on panelboards
• Its bolt-on construction makes it especially well suited for installations where a secure mechanical and electrical connection is preferred, helping support dependable operation over the life of the electrical system.