QOB170 - 70 Amp Circuit Breaker

QOB170 - 70 Amp Circuit Breaker

The QOB170 bolt-on circuit breaker is designed to provide dependable overcurrent protection for electrical distribution systems where a secure, permanent connection is essential. Featuring a 70 amp rating, single-pole configuration, and a 10kA interrupting capacity at 120VAC, this Type QOB circuit breaker is well-suited for protecting branch circuits in commercial, industrial, and institutional electrical panels. Its bolt-on mounting design helps create a stable connection that resists vibration, making it an excellent choice for demanding environments where reliability matters. Whether you're replacing an existing breaker or maintaining electrical equipment, the QOB170 offers the performance and compatibility professionals expect for keeping electrical systems operating safely and efficiently.

Key Features and Benefits

• 70 Amp Current Rating: 70 Amp current rating for reliable branch circuit protection.
• Single-Pole Design: Single-pole (1P) design for 120VAC applications.
• Bolt-On Mounting: Bolt-on mounting provides a secure mechanical and electrical connection.
• 10kA A.I.C. Rating: 10kA A.I.C. rating at 120VAC helps interrupt fault currents within its rated capacity.
• Type QOB: Type QOB circuit breaker for compatible panelboard applications.
• Compact Footprint: Compact footprint allows for efficient installation and replacement.
• Overcurrent Protection: Designed to help protect conductors and connected equipment from overloads and short circuits.
• Application Versatility: Suitable for commercial, industrial, and light commercial electrical systems.

Technical Specifications

• Part Number: QOB170
  
• Type: QOB
  
• Mounting Style: Bolt-On
  
• Poles: 1
  
• Amperage: 70A
  
• Voltage: 120VAC
  
• A.I.C. Rating: 10kA @ 120VAC
  
• Dimensions:
  • Height: 3.0 in.
  • Width: 0.75 in.
  • Depth: 2.5 in.

Material Compliance and Certifications

• Compatible Systems: Designed for use in compatible electrical distribution systems.
• Industry Standards: Manufactured to meet applicable industry standards for molded case circuit breakers when installed according to manufacturer specifications.
• Installation Requirements: Always verify compatibility with your panelboard and ensure installation complies with applicable national, state, and local electrical codes.
  

Where It Works Best

• The QOB170 70 Amp bolt-on circuit breaker is an excellent choice for commercial buildings, industrial facilities, offices, schools, retail locations, and other properties that utilize compatible Type QOB panelboards. Its bolt-on design makes it especially well-suited for installations where a more secure mounting method is preferred, helping maintain dependable electrical connections in environments subject to vibration or frequent operation. It is commonly used to protect individual branch circuits serving lighting, power distribution, and dedicated electrical equipment within its rated specifications.