QOB31001021 - 100A Circuit Breaker

QOB31001021 - 100A Circuit Breaker

The QOB3100-1021 is a 3-pole, 100-amp Type QOB bolt-on circuit breaker designed to provide dependable branch circuit protection for your commercial and industrial electrical distribution systems. Built for secure panelboard installation, this breaker features a bolt-on mounting design that helps you create a stable electrical connection while reducing the risk of vibration-induced movement. Equipped with an integrated 120VAC shunt trip device, the QOB3100-1021 allows the breaker to be tripped remotely when connected to a compatible control circuit, making it an excellent choice for emergency shutdown systems, fire safety applications, and other installations requiring remote breaker operation. With a 10kA interrupting rating at 240VAC, this breaker is engineered to interrupt fault currents and help protect connected equipment from damage caused by overloads and short circuits. Its compact footprint also makes it well-suited for electrical professionals performing new installations, equipment upgrades, or maintenance projects where dependable performance and remote tripping capability are essential.

Key Features and Benefits

• 100 Amp continuous current rating for a wide range of commercial and industrial applications.
• A three-pole configuration protects three-phase electrical systems.
• Bolt-on mounting design delivers a secure installation and dependable electrical connection.
• The integrated 120VAC shunt-trip device enables remote breaker operation for enhanced safety and system control.
• 10 kA interrupting capacity at 240 VAC helps protect equipment during overload and short-circuit conditions.
• Type QOB design for use in compatible bolt-on panelboards and electrical distribution equipment.
• Compact dimensions simplify installation in compatible electrical enclosures.
  

Technical Specifications

• Part Number: QOB3100-1021
  
• Type: QOB
  
• Mounting Style: Bolt-On
  
• Poles: 3
  
• Amperage: 100A
  
• Voltage Rating: 240VAC
  
• Interrupting Rating: 10kA @ 240VAC
  
• Shunt Trip: 120VAC Integrated Shunt Trip Device
  
• Dimensions:
  • Height: 3.5 in.
  • Width: 3.0 in.
  • Depth: 2.5 in.

Material Compliance and Certifications

• Industry Standards: Manufactured for use in compatible electrical distribution systems that require a Type QOB bolt-on circuit breaker.
• Installation Requirements: Designed to meet applicable industry performance requirements for circuit protection when installed according to manufacturer specifications and local electrical codes.
• Professional Installation: Suitable for installation by qualified electrical professionals following all applicable safety standards and code requirements.
  

Where It Works Best

• The QOB3100-1021 is an excellent choice for commercial buildings, industrial facilities, manufacturing equipment, institutional properties, and other electrical distribution systems that require a 100-amp, 3-pole bolt-on circuit breaker with a 120VAC shunt trip. It is particularly well-suited for applications where remote emergency shutdown, fire alarm interface, safety interlocks, or centralized control systems are part of the electrical design. Its combination of reliable circuit protection and remote-tripping capability makes it a practical solution for protecting valuable electrical equipment while meeting modern safety and control requirements.