LB3225 - 225Amp Circuit Breaker

LB3225 - 225Amp Circuit Breaker

The LB3225 is a 225-amp, 3-pole Type LB thermal-magnetic circuit breaker with an interchangeable trip unit. It is rated 22kA at 600VAC, 30kA at 480VAC, and 42kA at 240VAC, and includes load-side terminals. It also carries a 40°C rating. If you're trying to match an existing breaker, there's plenty here to compare beyond the 225A nameplate rating. Check the Type LB configuration, three-pole setup, interrupting capacity at your system voltage, interchangeable trip unit, terminals, and physical dimensions. Properly selected, installed, and used within its specified ratings, the LB3225 is built to last in the application it was designed for.

Key Features and Benefits

• 225-amp rating for applications calling for this specific current rating
• 3-pole Type LB configuration
• Thermal-magnetic circuit breaker
• Interchangeable trip unit
• 40°C rated
• Load-side terminals included
• Defined dimensions make physical compatibility easier to check
• Suitable for form, fit, and functional replacement when the application specifications match
  

Technical Specifications

• Part Number: LB3225
  
• Type: LB
  
• Rated Current: 225A
  
• Number of Poles: 3
  
• Breaker Technology: Thermal-magnetic
  
• Trip Unit: Interchangeable
  
• AIC @ 600VAC: 22kA
  
• AIC @ 480VAC: 30kA
  
• AIC @ 240VAC: 42kA
  
• Temperature Rating: 40°C
  
• Terminals: Load-side terminals included
  
• Height: 10.13 in.
  
• Width: 5.50 in.
  
• Depth: 3.94 in.
  
• Overall Dimensions: 5.50" W × 10.13" L × 3.94"D
  
• Approx. Ship Weight: 16.00 lbs.
  

Material Compliance and Certifications

No specific UL, CSA, IEC, RoHS, REACH, or other certification or material-compliance information was supplied for the LB3225. Don't assume those details from the Type LB designation or from specifications associated with other breakers.

Where It Works Best

The LB3225 makes the most sense when you're working with existing equipment that specifically calls for a 225A, 3-pole Type LB thermal-magnetic breaker or when evaluating a compatible form, fit, and functional replacement.

Pay particular attention to the system voltage. The corresponding interrupting capacity changes from 22kA at 600VAC to 30kA at 480VAC and 42kA at 240VAC, so match the correct rating to the application.