Eaton P3BFDB3125N Circuit Breaker Plug-in Unit - 18 kAIC
Part Number: P3BFDB3125N
Quick Summary
Eaton P3BFDB3125N is a Pow-R-Way III circuit breaker plug-in unit for busway protection in industrial electrical distributions. With limited panel space and the demand for fast, error-free plug-in installation, this unit simplifies field wiring and minimizes downtime. It carries IEEE Certified, CSA Certified, ANSI and UL 857 certifications, ensuring compliance and safety for critical power protection. Designed for 125A service and NEMA-compliant installation, it drives reliability and cost savings through optimized protection and easier maintenance. Its 18 kAIC interrupt rating at 240 VAC and 14 kAIC at higher voltages deliver robust fault tolerance for diverse processing lines. The 12.36 in depth and 21.2 in height with 5.43 in width support precise panel planning and straightforward integration within existing busways.
Product Information
Extended Description
P3BFDB3125N Eaton: Pow-R-Way III Busway, Circuit Breaker Plug-in Unit, 3-Pole, 125 AMP, FDB Frame Type, 100% Neutral
Product Name
Eaton Pow-R-Way III circuit breaker plug-in unit
Catalog Number
P3BFDB3125N
UPC
786683006354
Product Length/Depth
12.36 in
Product Height
21.2 in
Product Width
5.43 in
Product Weight
25 lb
Compliances
NEMA Compliant
Certifications
IEEE Certified CSA Certified ANSI UL 857
Circuit Breaker Frame
F
Grounding Options
50% Integral/Housing
Type
Breaker
Amperage Rating
125A
Interrupt rating
18 kAIC at 240 Vac, 14 kAIC at 480 Vac, 14 kAIC at 600 Vac
Neutral Options
100%
The 3-Pole, 125A Pow-R-Way III circuit breaker plug-in unit provides a robust protection platform with a 100% neutral option, enabling accurate sensing and balanced fault isolation across all phases. This design reduces wiring errors and speeds commissioning, delivering measurable time savings during installation and commissioning in busway-fed distributions. The unit’s 18 kAIC interrupt rating at 240 VAC (and 14 kAIC at 480–600 VAC) delivers high fault tolerance, lowering the risk of cascading outages and extending equipment life in demanding industrial environments. With NEMA compliance and certifications from IEEE, CSA, ANSI, and UL 857, buyers gain regulatory confidence and a smoother path through audits, which translates to lower retrofit costs and fewer change orders. The grounding options—with 50% integral/housing grounding—simplify installation and improve EMI performance in compact panel layouts, reducing field modification needs. Compatibility with Pow-R-Way III busways enables fast plug-in integration, minimizes panel space usage, and supports scalable electrical distributions across warehouses, data centers, and manufacturing floors. At a practical level, the unit weighs 25 lb and measures 12.36 in depth, 21.2 in height, and 5.43 in width, aiding precise rack-and-bus assembly planning and facilitating safer, cleaner panel builds.
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FAQs
The P3BFDB3125N is designed for Pow-R-Way III busway systems and 3-pole, 125A protection. It fits standard busway entry points and aligns with NEMA-compliant installations, making it suitable for industrial feeders, warehouses, and manufacturing lines where compact footprint and reliable protection are essential.
Key ratings include a 125A amperage rating, 3-pole configuration, 18 kAIC interrupt rating at 240 VAC, and 14 kAIC at 480–600 VAC, with 100% neutral. These specs support robust protection for diverse loads and voltages common in industrial facilities.
Yes. It carries IEEE Certified, CSA Certified, ANSI, and UL 857 certifications and is NEMA compliant, providing regulatory assurance for critical power distribution and facilitating smoother audits and inspections.
The plug-in design reduces field wiring complexity and allows rapid replacement or upgrade of protection modules. Combined with a 100% neutral and modular busway compatibility, this minimizes downtime during maintenance and retrofits in busy industrial environments.
The unit measures 12.36 in depth, 21.2 in height, and 5.43 in width, and weighs 25 lb. These dimensions support precise panel and busway layout planning, enabling efficient space utilization and safer installation in constrained enclosures.