NFJ621200 - 200Amp Circuit Breaker

NFJ621200 - 200Amp Circuit Breaker

The NFJ621200 200 amp circuit breaker is designed for professionals who need dependable protection when maintaining or servicing existing electrical systems. Built with a thermal magnetic molded case, this breaker helps guard against overloads and short circuits that can lead to equipment damage or unexpected downtime. Its 2-pole configuration supports common commercial and industrial voltage requirements, while the bolt-on design allows it to be installed cleanly into established panels. With load-side lug terminals included, the NFJ621200 provides solid, secure connections that help keep electrical systems operating safely and consistently over time.

Key Features and Benefits

• Thermal Magnetic Protection You Can Rely On
  The molded case thermal magnetic design responds accurately to overload and fault conditions, helping protect conductors and connected equipment.
• High Fault Interruption Capability
  With interrupting ratings of 22k AIC at 480VAC and 25k AIC at 240VAC, this breaker is built to handle the fault levels commonly found in commercial and industrial environments.
• Designed for Existing Systems
  Its compact footprint and bolt-on mounting make it well-suited for maintenance and replacement work, especially where panel space is already defined.
• Load-Side Lugs Included
  Supplied with load-side lug terminals, the breaker allows for firm, dependable terminations that support long-term electrical performance.

Technical Specifications

• Amperage: 200A
• Poles: 2
• Voltage Rating: 480VAC / 240VAC
• Interrupting Rating:
  • 22k AIC @ 480VAC
  • 25k AIC @ 240VAC
• Frame Type: NFJ
• Breaker Style: Thermal Magnetic, Molded Case
• Mounting Type: Bolt-On
• Operating Temperature Rating: 40°C
• Dimensions:
  • 4.13" W
  • 9.31" L
  • 3.75" D
• Included Hardware: Load-Side Lug Terminals

Material Compliance and Certifications

• The NFJ621200 circuit breaker is manufactured using quality materials that meet recognized industry standards for electrical safety and performance. It is suitable for professional use in regulated environments where compliance and reliability matter. Each unit is designed to perform consistently under normal operating conditions in commercial and industrial settings.

Where It Works Best

• This breaker is best used in maintenance and replacement applications for existing electrical systems. It’s a practical choice for commercial buildings, industrial facilities, and other installations where dependable overcurrent protection is required without altering the original system design. Electricians and maintenance teams rely on breakers like the NFJ621200 to keep systems safe, functional, and compliant.