NFJ621225 - 225Amp Circuit Breaker

NFJ621225 - 225Amp Circuit Breaker

The NFJ621225 is a 225-amp, 2-pole molded-case circuit breaker made for compatible electrical equipment using the NFJ bolt-on configuration. It has a thermal-magnetic trip and is rated 22kA at 480VAC and 25kA at 240VAC. Load-side lug terminals are included. If you're replacing an existing breaker, you'll also want to check the size: this unit measures 9.31" high x 4.13" wide x 3.75" deep. You may also see NFJ424225. That's an alternate part number for this breaker and can help when you're checking an old panel, breaker label, or maintenance record; for older commercial and industrial electrical systems, getting the details right matters. Amperage is only part of the picture. Pole count, mounting style, interrupting rating, dimensions, trip type, and terminal setup must match the application. When those specifications call for the NFJ621225 configuration, this breaker provides the form, fit, and function needed to keep compatible equipment in service. It's a straightforward breaker that's built to last.

Key Features and Benefits

• 225-amp, 2-pole breaker for compatible NFJ applications
• Thermal-magnetic trip for overcurrent and short-circuit protection
• Bolt-on configuration for equipment designed around this mounting style
• Rated 22kA at 480VAC
• Rated 25kA at 240VAC
• Load-side lug terminals included
• 40°C rating
• Also identified as NFJ424225, which can be useful when matching an existing breaker or older equipment records
• Clearly defined dimensions make it easier to check physical fit before installation

Technical Specifications

• Part Number: NFJ621225
  
• Alternate Part Number: NFJ424225
  
• Type: NFJ
  
• Breaker Type: Molded Case Circuit Breaker
  
• Amperes: 225
  
• Poles: 2
  
• A.I.C. Rating & Volts: 22kA @ 480VAC; 25kA @ 240VAC
  
• Trip: Thermal-Magnetic
  
• Mounting: Bolt-On
  
• Temperature Rating: 40°C
  
• Terminals: Load-Side Lug Terminals Included
  
• Height: 9.31 in.
  
• Width: 4.13 in.
  
• Depth: 3.75 in.
  
• Ship Weight: 12.00 lbs. 
  

Material Compliance and Certifications

• The available product specifications don't include specific material-compliance or certification information, so we won't guess at it. If your job requires a particular listing, certification, or compliance standard, check the markings on the breaker and compare them with the equipment and installation requirements.
• Also check the complete breaker specification before installation. Confirm the amperage, poles, voltage, A.I.C. rating, mounting arrangement, trip type, dimensions, and terminal configuration. Qualified electrical personnel should complete installation in accordance with applicable electrical codes and equipment requirements.

Where It Works Best

• The NFJ621225 circuit breaker is best suited for existing commercial and industrial electrical systems that require this particular NFJ configuration. That makes it especially useful for maintaining legacy equipment when the goal is to replace the existing breaker without changing the system's intended setup.
• Have an NFJ621225 or NFJ424225 in front of you? Compare the details before deciding it's a match. You're looking for 225 amps, 2 poles, bolt-on mounting, a thermal magnetic trip, and the correct A.I.C. rating for the application. Then check the dimensions and load-side lug arrangement.
• That's really the important part with a replacement breaker. Don't match on amperage alone. Match the breaker to the equipment, the electrical ratings, and the physical configuration. If all of those line up with the NFJ621225 specifications, you've got the right form, fit, and functional characteristics for the intended application.