QOB320 - 20 Amp Circuit Breaker

QOB320 - 20 Amp Circuit Breaker

The QOB320 is a 3-pole, 20-amp bolt-on circuit breaker designed to provide dependable overcurrent and short-circuit protection for commercial, industrial, and residential electrical distribution systems. Built as a Type QOB breaker, it features a secure bolt-on mounting design that helps create a stable electrical connection in compatible panelboards, making it a practical choice for applications where reliability and long-term performance matter. Rated 10,000 A.I.C. at 240VAC, the QOB320 is engineered to interrupt fault currents safely while protecting connected equipment from electrical damage. Whether you're replacing an existing breaker during maintenance or completing a new installation, this 20-amp breaker offers the consistent protection electricians, contractors, and facility maintenance professionals expect for properly matched electrical systems.

Key Features and Benefits

• 20 Amp Current Rating: 20 Amp current rating for branch circuit protection in compatible electrical systems.
• 3-Pole Configuration: 3-pole configuration allows protection of three-phase circuits from a single breaker.
• Bolt-On Mounting Design: Bolt-on mounting design helps provide a secure mechanical and electrical connection.
• 10kA A.I.C. Rating: 10kA A.I.C. rating at 240VAC for dependable interruption of available fault current within its rating.
• Type QOB Circuit Breaker: Type QOB circuit breaker designed for use with compatible panelboards and electrical equipment.
• Ideal for Maintenance and Replacement: Ideal for maintenance, repairs, panel upgrades, and replacement applications.
• Compact Dimensions: Compact dimensions make installation straightforward in compatible electrical assemblies.
  

Technical Specifications

• Part Number: QOB320
  
• Type: QOB
  
• Mounting Style: Bolt-On
  
• Poles: 3
  
• Amperage: 20A
  
• Voltage: 240VAC
  
• A.I.C. Rating: 10kA @ 240VAC
  
• Dimensions:
  • Height: 3.0 in.
  • Width: 2.25 in.
  • Depth: 2.5 in.

Material Compliance and Certifications

• Industry Standards: The QOB320 is manufactured for use in electrical distribution systems that require a Type QOB bolt-on circuit breaker. It is designed to meet applicable industry performance standards for its intended application.
• Installation Requirements: Always verify compatibility with your panelboard and ensure installation complies with the latest National Electrical Code (NEC) requirements as well as all applicable local electrical codes. Installation should be performed by a qualified electrical professional.
  

Where It Works Best

• The QOB320 is well suited for a wide variety of electrical applications that require reliable 20-amp, three-pole circuit protection. It is commonly used in commercial buildings, industrial facilities, institutional environments, and compatible residential electrical systems equipped for Type QOB bolt-on breakers. Typical applications include branch circuit protection for three-phase equipment, HVAC systems, lighting circuits, motors, machinery, and other electrical loads requiring a properly rated three-pole breaker.