NB111020 - 20Amp Circuit Breaker

NB111020 - 20Amp Circuit Breaker

The NB111020 20 Amp Circuit Breaker is a dependable single-pole breaker engineered to provide consistent circuit protection in residential and light commercial electrical systems. Built within the NB frame series, this 20A bolt-on circuit breaker delivers reliable overload and short-circuit protection through a proven thermal magnetic trip mechanism. Designed for secure panel mounting, the bolt-on connection helps ensure a tight, stable fit—an important factor in maintaining long-term electrical safety and performance. With a 10kAIC rating at 120VAC, the NB111020 is well-suited for protecting branch circuits where safe interruption capacity and steady operation are essential. Whether you're performing routine electrical maintenance or replacing an existing breaker, this compact NB frame circuit breaker offers the performance and fit electricians expect. Its space-efficient design allows for easy integration into compatible panelboards without sacrificing protection or durability.

Key Features and Benefits

• 20 Amp Single-Pole Protection: Ideal for safeguarding individual 120V branch circuits in residential and light commercial applications.
• Bolt-On Mounting Design: Provides a firm, secure connection to the panel bus, reducing the risk of loose connections and improving long-term reliability.
• Thermal Magnetic Trip Unit: Combines inverse-time overload protection with instantaneous short-circuit protection for consistent, dependable operation.
• 10kAIC Interrupting Rating: Rated for 10,000 amperes interrupting capacity at 120VAC, helping protect equipment from fault conditions.
• Compact NB Frame Construction: Space-saving footprint supports efficient panel configuration and simplified installation.
  

Technical Specifications

• Manufacturer Part Number: NB111020
  
• Amperage: 20 Amps
  
• Poles: 1
  
• Voltage Rating: 120 VAC
  
• Interrupting Rating: 10kAIC @ 120VAC
  
• Frame Type: NB
  
• Mounting Type: Bolt-On
  
• Dimensions:
  • Width: 1.00"
  • Length: 3.38"
  • Depth: 2.31"
• Shipping Weight: 1.60 lbs
  

Material Compliance and Certifications

• Industry Standards: The NB111020 20A circuit breaker is manufactured to meet established industry safety and performance standards.
• Quality Construction: Built from high-quality electrical-grade materials, it is designed to deliver consistent trip performance and dependable circuit interruption under rated conditions.
• Quality Control: Each unit is produced with strict quality controls to help ensure safe operation in approved electrical systems.
  

Where It Works Best

• This 20 amp single-pole bolt-on circuit breaker is commonly used in residential load centers and light commercial panelboards requiring NB frame breakers.
• It’s a practical solution for protecting lighting circuits, receptacle circuits, and other 120V branch applications where secure mounting and reliable fault protection are critical.
• Electricians, contractors, and maintenance professionals rely on breakers like the NB111020 to maintain electrical system safety and compliance while minimizing downtime.