LA3100 - 100Amp Circuit Breaker

LA3100 - 100Amp Circuit Breaker

The LA3100 is a 100-amp, 3-pole Type LA circuit breaker intended for compatible electrical equipment where its ratings, size, and configuration match the existing application. It has a thermal-magnetic design with an interchangeable trip unit, is rated at 40°C, and comes with load-side terminals. If you're replacing an LA3100 that's already in service, start with the catalog number, then put the electrical ratings and physical dimensions side by side with the existing breaker. Also check the trip-unit configuration, mounting, and terminal requirements before installation.

Key Features and Benefits

• 100 Amp, 3-pole configuration for compatible applications
• Type LA circuit breaker
• Thermal-magnetic design
• Equipped with an interchangeable trip unit
• 40°C rated
• Includes load-side terminals
• A practical choice for existing and legacy electrical equipment when the required specifications match
• Built around established form, fit, and functional requirements for compatible applications
  

Technical Specifications

• Part Number: LA3100
  
• Product Type: Circuit Breaker
  
• Type: LA
  
• Amperage: 100A
  
• Number of Poles: 3
  
• Trip Design: Thermal Magnetic
  
• Trip Unit: Interchangeable
  
• Temperature Rating: 40°C
  
• A.I.C. at 600VAC: 22kA
  
• A.I.C. at 480VAC: 30kA
  
• A.I.C. at 240VAC: 42kA
  
• Terminals: Load-side terminals included
  
• Height: 10.75 in.
  
• Width: 8.25 in.
  
• Depth: 4.00 in.
  
• Overall Dimensions: 8.25" W x 10.75" L x 4.00" D
  
• Approximate Ship Weight: 25.00 lbs.
  

Material Compliance and Certifications

No specific certifications or material-compliance standards were included in the supplied information for the LA3100. Therefore, do not assume UL, RoHS, REACH, or other certifications.

Where It Works Best

The LA3100 makes the most sense when maintaining electrical equipment that already calls for a 100A, 3-pole Type LA thermal magnetic breaker with an interchangeable trip unit. This is especially relevant for legacy installations where maintaining the correct breaker configuration matters more than simply finding another device with a 100-amp rating.

Before matching, check the existing breaker closely. Confirm the LA3100 or Type LA designation, 100A rating, three-pole configuration, system voltage, required A.I.C., 40°C rating, physical dimensions, trip-unit arrangement, mounting, and terminal requirements. The included load-side terminals are useful information here, but other lug or terminal details were not provided and shouldn't be assumed.