Federal Pacific NFJ631200 Molded Case Circuit Breaker

This N-Frame unit is specifically designed for legacy Federal Pacific panelboards. Using it allows facilities to replace failed or aging breakers without the extensive modifications required to retrofit a newer panelboard.

The factory-installed load terminals accept copper or aluminum conductors ranging from 4 AWG to 300 kcmil, ensuring adequate capacity for 200-amp commercial and industrial loads.

Yes. While it carries a maximum voltage rating of 600VAC, it is commonly applied in 480VAC 3-phase networks where it provides an 18 kAIC interrupting capacity.

Federal Pacific is a legacy manufacturer, and the original NFJ series is obsolete. However, exact replacements remain available to maintain existing infrastructure, helping facilities avoid a complete electrical system overhaul.

No. The NFJ631200 features a fixed, non-interchangeable thermal-magnetic trip element. It provides dedicated long-time and instantaneous (LI) overcurrent protection that cannot be altered with external rating plugs.

It utilizes a standard bolt-on connection natively. It secures directly to the busbars of compatible Federal Pacific panelboards without the need for aftermarket mounting adapters.

As a 3-pole molded case circuit breaker, it utilizes internal arc chutes and thermal-magnetic elements to safely interrupt up to 14,000 amps of fault current at its maximum 600VAC rating, protecting equipment from thermal overloads and short circuits.

Yes. If your specific Federal Pacific enclosure or machine control panel requires a rotary disconnect, the NFJ631200R cross-reference offers the same 200A protection but features a factory-installed rotary mechanism instead of a standard toggle.

Yes, the Federal Pacific NFJ series supports optional factory or field-installable accessories. Add-ons such as shunt trips, auxiliary switches, and undervoltage releases can be utilized for remote tripping and status monitoring.