NFJ631225R - 225Amp Circuit Breaker

NFJ631225R - 225Amp Circuit Breaker

Need an NFJ631225R circuit breaker for your existing electrical setup? This 225-amp, 3-pole molded-case circuit breaker has a bolt-on design and uses thermal-magnetic trip protection. It is rated 22 kAIC at 480VAC and 25 kAIC at 240VAC, with a 40°C ambient rating. The breaker measures 9.31 inches high, 4.13 inches wide, and 3.75 inches deep, so check those dimensions carefully when matching it to existing equipment. Load-side lug terminals are included. For maintenance work involving older or legacy electrical systems, the NFJ631225R can be a practical solution when the original application calls for this combination of amperage, poles, mounting style, dimensions, and interrupting ratings. It’s built to last, but as with any replacement circuit breaker, the key is getting the match right. Check the full specifications against the existing breaker and equipment requirements before installation.

Key Features and Benefits

• 225-amp rating for applications designed around this amperage.
• 3-pole configuration for compatible three-pole electrical systems.
• Thermal-magnetic trip mechanism provides overload and short-circuit protection.
• Bolt-on mounting matches equipment designed for this breaker configuration.
• Rated 22 kA at 480VAC and 25 kA at 240VAC.
• Includes load-side lug terminals for applications requiring this terminal setup.
• 40°C ambient rating.
• Molded case construction designed for its intended electrical application.
• Well suited to legacy equipment maintenance and replacement when the existing system requires matching form, fit, and function.

Technical Specifications

• Part Number: NFJ631225R
  
• Type: NFJ
  
• Breaker Type: Molded Case Circuit Breaker
  
• Amperage: 225 Amps
  
• Poles: 3
  
• Trip Type: Thermal-Magnetic
  
• Mounting: Bolt-On
  
• AIC Rating: 22k @ 480VAC; 25k @ 240VAC
  
• Ambient Rating: 40°C
  
• Height: 9.31 in.
  
• Width: 4.13 in.
  
• Depth: 3.75 in.
  
• Ship Weight: 12.00 lbs. 
  
• Terminals: Includes Load-Side Lug Terminals
  

Material Compliance and Certifications

• The available specifications for the NFJ631225R do not include specific material compliance information or certification listings. If your application requires a specific listing, certification, or material-compliance standard, verify that information on the breaker label or in the applicable product documentation.
• Don’t select a replacement breaker based on amperage alone. Before installation, check the part number, voltage and AIC ratings, pole count, dimensions, mounting method, terminal configuration, and any required equipment listings.

Where It Works Best

• The NFJ631225R 225 amp circuit breaker makes the most sense for existing or legacy electrical equipment designed to use an NFJ-type breaker with matching specifications. This is especially useful in maintenance situations where you’re trying to preserve the existing system configuration rather than change it.
• If the application requires a 225A, 3-pole, bolt-on thermal-magnetic molded-case circuit breaker with 22k AIC at 480VAC or 25k AIC at 240VAC, the NFJ631225R has the key characteristics you’ll want to compare against the breaker being replaced. Also check the physical dimensions and included load-side lug terminals.
• Ultimately, compatibility comes down to the details. Confirm the NFJ631225R against the existing electrical equipment and application requirements before putting it into service. Qualified electrical personnel should handle installation in accordance with applicable electrical codes and equipment requirements.