Eaton FNJ1S18 Motor Control Center - UL Listed

The FNJ1S18 delivers a 250 A trip rating coupled with an HJD circuit breaker, delivering targeted protection for motor feeders and downstream loads. This combination reduces arc flash exposure, minimizes nuisance trips during startup, and supports tighter coordination with upstream protection devices. In practice, factory acceptance tests show shorter fault clearance times and improved equipment uptime, making it ideal for high-demand applications in process lines and machine cells. Its compact 18-inch unit footprint, combined with a J-frame feeder architecture, simplifies busbar routing and cabling, enabling quicker panel assembly and easier field retrofits. The modular design supports straightforward expansion as plant loads grow, without requiring major relocation of adjacent MCC sections. For installers, the receptacle alignment and handle mechanism provide intuitive operation, reducing commissioning time and limiting on-site labor costs. The UL Listed certification verifies compliance with essential electrical safety standards, a cornerstone for regulatory acceptance across plant sites. This assurance helps maintenance teams meet internal safety policies and external audits with minimal documentation. The FNJ1S18 also carries Eaton's warranty policy, offering a one-year coverage from installation or 18 months from shipment, whichever occurs first, reducing total cost of ownership. Designed for seamless integration with Eaton 9800 Series MCCs, the FNJ1S18 aligns with 9800 family hardware, including the HJD breaker catalog and J-frame feeder components. The included specification sheet guides wiring, clearances, and mounting, with exact dimensions of 22 in depth, 16 in height, and 25 in width to fit standard electrical rooms while maintaining accessible maintenance clearances.