QO21001021 - 100 Amp Circuit Breaker

QO21001021 - 100 Amp Circuit Breaker

When your electrical system requires both dependable circuit protection and the ability to disconnect power remotely, the QO21001021 Type QO circuit breaker delivers both in one compact solution. This 2-pole, 100-amp plug-on circuit breaker features an integrated 120VAC shunt trip device, allowing the breaker to be opened remotely by an external signal—an important feature for emergency shutdown systems, fire safety controls, and other automated protection applications.

Built for 120/240VAC electrical systems, the QO21001021 helps safeguard wiring and connected equipment against overloads and short circuits while providing the added convenience of remote tripping when your application demands it. Its plug-on design makes installation into compatible Type QO load centers and panelboards straightforward, while its 10kA interrupting rating provides reliable fault protection for a wide range of commercial and industrial installations.

Whether you're upgrading an existing electrical panel, replacing a worn breaker, or completing a new installation, this breaker offers the combination of performance, safety, and functionality professionals expect from the Type QO product line.

Key Features and Benefits

• 100 Amp Rating: For higher-capacity branch circuits.
• 2-Pole Design: For 120/240VAC electrical systems.
• Built-In 120VAC Shunt Trip Device: Allows for remote electrical tripping.
• Plug-On Construction: Allows for quick installation in compatible Type QO panels.
• 10kA Interrupting Capacity: Helps protect electrical systems during fault conditions.
• Dependable Protection: Designed to provide dependable overload and short-circuit protection.
• Emergency Shutdown Applications: Ideal for emergency shutdown systems and automated safety applications.
• Compact Size: Helps maximize available panel space.
  

Technical Specifications

• Part Number: QO21001021
  
• Type: QO
  
• Circuit Breaker Style: Plug-On with 120VAC Shunt Trip Device
  
• Poles: 2
  
• Amperage: 100 Amps
  
• Voltage Rating: 120/240VAC
  
• Interrupting Capacity: 10kA @ 120/240VAC
  
• Dimensions:
  • Height: 3.5 in.
  • Width: 2.25 in.
  • Depth: 2.5 in.

Material Compliance and Certifications

• Compatible Equipment: Manufactured for use in compatible Type QO electrical distribution equipment.
• Industry Standards: Designed to meet applicable industry standards for molded case circuit breakers.
• Installation Requirements: Installation should comply with applicable national and local electrical codes.
• Panel Compatibility: Always verify panel compatibility before installation.
  

Where It Works Best

• The QO21001021 is a great choice anywhere reliable overcurrent protection and remote breaker operation are needed. It's commonly installed in commercial buildings, industrial facilities, schools, healthcare facilities, manufacturing environments, and other electrical systems that use emergency power-off stations, fire alarm interfaces, building automation systems, or equipment safety controls. Its integrated shunt trip functionality makes it especially valuable wherever power must be disconnected quickly and safely from a remote location.