C120 - 20Amp Circuit Breaker

C120 - 20Amp Circuit Breaker

The C120 is a 20 Amp, single-pole plug-on circuit breaker used in compatible electrical panels to protect your 120-volt branch circuits from overloads and short circuits. It's a common breaker size found throughout residential and light commercial buildings, often protecting receptacles, lighting circuits, utility areas, and other everyday electrical loads. When a circuit draws more current than it should, the breaker trips and cuts power to help you prevent damage to wiring and connected equipment.

Anyone who has worked on an electrical panel knows that replacing a breaker isn't just about matching the amp rating. The breaker type matters too.

Most breakers spend years in service without drawing much attention. That's generally a good thing. The C120 is built for that kind of everyday use, providing branch circuit protection behind the scenes while the electrical system goes about its job. With a 10kA interrupting capacity at 120VAC, it is well suited for many standard residential, commercial, and light industrial installations where reliable overcurrent protection is needed.

Key Features and Benefits

• 20 Amp single-pole circuit breaker
• Type C design for compatible electrical panels
• Plug-on mounting configuration
• HACR rated for approved HVAC and refrigeration applications
• Helps protect against overloads and short-circuit faults
• 10kA interrupting capacity at 120VAC
• Suitable for branch circuit protection
• Compact design helps maximize panel space
• Commonly used for breaker replacement and maintenance projects
  

Technical Specifications

• Part Number: C120
  
• Type: C
  
• Amperage Rating: 20 Amps
  
• Poles: 1
  
• Voltage Rating: 120VAC
  
• Interrupting Capacity: 10kA @ 120VAC
  
• Mounting Style: Plug-On
  
• HACR Rated: Yes
  
• Dimensions: 1.00"W × 2.88"H × 2.56"D
  
• Width: 1.00 in.
  
• Height: 2.88 in.
  
• Depth: 2.56 in.
  
• Approximate Shipping Weight: 0.50 lbs.
  

Material Compliance and Certifications

• HACR rated for approved heating, air conditioning, and refrigeration applications
• Manufactured for use in compatible electrical distribution equipment
• Intended for overcurrent protection applications
• Built to applicable industry manufacturing standards
• Installation should comply with local electrical codes and regulations
• Compatibility should be verified before installation
  

Where It Works Best

• The C120 is commonly installed in residential, commercial, and light industrial electrical systems requiring a 20 Amp single-pole breaker. Typical applications include receptacle circuits, lighting circuits, office spaces, utility rooms, HVAC control circuits, workshops, and general-purpose branch circuit protection.