A1B120 - 20 Amp Circuit Breaker

A1B120 - 20 Amp Circuit Breaker

The A1B120 circuit breaker is designed for applications where dependable circuit protection and proper equipment compatibility are important. This 1-pole, 20 amp thermal magnetic breaker is commonly installed in commercial and industrial electrical systems that require a bolt-on mounting configuration and a 120VAC rating. Its compact design makes it a good fit for compatible panelboards and distribution equipment without taking up unnecessary space.

Built to handle your everyday electrical demands, the A1B120 helps protect circuits from overloads and short circuits through its thermal magnetic trip function. That combination makes it a practical choice for your lighting circuits, branch circuit protection, and general power distribution applications. For electricians and maintenance teams working on existing systems, having the correct breaker type and ratings can save time and help keep installations straightforward.

The A1B120 is also a solid option for maintaining older electrical systems where matching form and fit matters. With a 10k A.I.C. rating at 120VAC and a secure bolt-on connection, this breaker is built for long-term service in demanding environments while supporting safe and consistent operation.

Key Features and Benefits

• 1-Pole Thermal Magnetic Circuit Breaker: Designed for dependable branch circuit protection in commercial and industrial electrical systems.
• 20 Amp Rating: Suitable for branch circuit applications requiring reliable overcurrent protection.
• Bolt-On Mounting Style: Provides a secure installation in compatible panelboards and distribution equipment.
• Overload and Short Circuit Protection: Helps protect electrical systems through its thermal magnetic trip function.
• Compact Design: Fits well in compatible panelboards and equipment without taking up unnecessary space.
• 10k A.I.C. Rating: Rated at 120VAC for dependable interruption capacity in demanding applications.
• Commercial and Industrial Use: Built for use in commercial and industrial electrical systems requiring consistent performance.
• Long-Term Reliability: Designed for dependable long-term use in maintenance, replacement, and retrofit applications.
  

Technical Specifications

• Part Number: A1B120
  
• Type: A1B
  
• Poles: 1
  
• Amperes: 20A
  
• Voltage Rating: 120VAC
  
• A.I.C. Rating: 10k @ 120VAC
  
• Trip Type: Thermal Magnetic
  
• Mounting Style: Bolt-On
  
• Dimensions:
  • Width: 0.75"
  • Length: 6.00"
  • Depth: 2.31"

Material Compliance and Certifications

• Industry Compatibility: The A1B120 is manufactured for use in compatible electrical distribution systems and is designed to align with applicable industry standards for molded case circuit breakers.
• Installation Requirements: Installation should always follow local electrical codes and equipment manufacturer specifications.
  

Where It Works Best

• Commercial buildings requiring branch circuit protection
• Industrial facilities with compatible electrical distribution systems
• Control panels and lighting panel applications
• General power distribution equipment
• Existing systems requiring a matching 20 amp bolt-on breaker
• Maintenance and replacement projects where proper fit and ratings are important