Eaton P3BFDB3050G Circuit Breaker Plug-in Unit - IEEE UL 857

3-pole, 50A protection with a Pow-R-Way III busway plug-in design delivers precise coordination and rapid fault isolation. The frame type F breaker provides consistent trip characteristics across Eaton busway sections, reducing nuisance trips and enabling predictable maintenance windows. This configuration is ideal for assembly lines, process plants, and data centers where space is at a premium but reliability cannot be compromised. 50% internal grounding simplifies grounding schemes and minimizes external conductor runs during installation. The result is shorter installation times, fewer connection errors, and a safer, more auditable grounding path in high-current environments. Engineers can confidently deploy these plug-in units in dense busway runs, knowing grounding integrity is maintained without additional hardware. Compliances with NEMA, IEEE, CSA, ANSI, and UL 857 standards help vendors meet regulatory requirements and customer specifications. The P3BFDB3050G’s certification footprint supports multi-market procurement and reduces third-party testing delays. In practice, this translates to faster project approvals and lower risk during audits and handovers. Key dimensions and weight (12.36 in depth, 21.2 in height, 5.43 in width, 25 lb) provide a compact yet rugged plug-in unit that slots into Eaton Pow-R-Way III busways without custom adapters. The plug-in format simplifies replacements and stocking by standardizing components across the facility. This compatibility reduces downtime during maintenance and simplifies spares management. With an 18 kAIC interrupt rating at 240 Vac and 14 kAIC at 480 and 600 Vac, the P3BFDB3050G delivers robust fault protection for high-energy systems. This capability supports safe operation in critical applications and aligns with industry standards for short-circuit withstand. Overall, it improves uptime, protects downstream equipment, and lowers risk of arc-flash incidents.