Eaton P3BFDB3125 Circuit Breaker Plug-in Unit - UL 857
Part Number: P3BFDB3125
Quick Summary
Eaton Pow-R-Way III circuit breaker plug-in unit protects power distribution feeders in industrial busway systems. Installing in dense arrays can be challenging due to alignment, grounding, and compliance requirements. IEEE Certified, CSA Certified, and ANSI UL 857 listed designs validate safety, interoperability, and traceability in harsh industrial environments. With a 125A rating and 18 kAIC interrupt capability at 240V, this unit delivers reliable protection for critical loads. By integrating with Pow-R-Way III busways, it simplifies field upgrades and spare-part replacement, reducing downtime. This model also supports standard grounding options and adheres to NEMA compliance, offering a robust solution for scalable distribution and maintenance efficiency.
Product Information
Extended Description
P3BFDB3125 Eaton: Pow-R-Way III Busway, Circuit Breaker Plug-in Unit, 3-Pole, 125 AMP, FDB Frame Type
Product Name
Eaton Pow-R-Way III circuit breaker plug-in unit
Catalog Number
P3BFDB3125
UPC
786683006330
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
Feature → Business Impact → Application: The P3BFDB3125 uses a 125A amperage rating to support demanding industrial feeders, improving uptime by handling fault currents without tripping during transient surges. This translates to shorter maintenance windows and reduced production losses on automated lines. Application: factory power distribution where Pow-R-Way III busways service multiple machines. Feature → Business Impact → Application: 18 kAIC interrupt rating at 240VAC enables fast, safe fault clearing, protecting delicate equipment and extending motor life, especially in high-startup environments. Feature → Business Impact → Application: 3-Pole F-frame breaker with plug-in unit design simplifies installation and replacement, reducing commissioning time and inventory needs. Feature → Business Impact → Application: Grounding options with 50% integral/housing support compliant safety grounding, aligning with electrical codes and lowering corrective maintenance costs. Feature → Business Impact → Application: IEEE CSA ANSI UL 857 certifications ensure traceability and regulatory compliance across global facilities, easing audits and supplier qualification. Feature → Business Impact → Application: Dimensions and weight (12.36 in L, 21.2 in H, 5.43 in W, 25 lb) provide clear space planning for panel layouts, enabling scalable distribution as facilities grow.
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FAQs
The P3BFDB3125 is designed for Pow-R-Way III busways and uses a 3-pole, F-frame plug-in configuration. Confirm catalog number P3BFDB3125 and frame type F in your switchgear, then align mounting points and grounding provisions per Eaton installation guides.
With 125A amperage rating and 18 kAIC interrupt rating at 240V (and 14 kAIC at higher voltages), the unit clears faults promptly, protecting motors and drives during startup transients while meeting IEC/UL safety requirements.
Yes. This plug-in unit is IEEE Certified, CSA Certified, ANSI and UL 857 listed, plus NEMA Compliant. These certifications simplify regulatory approvals and supplier qualification across locations.
The unit’s plug-in design and 12.36 in length, 21.2 in height, 5.43 in width enable straightforward replacement with minimal wiring changes. Ensure proper grounding option selection (50% integral/housing) and follow Eaton’s torque specs and wiring diagrams.
While initial costs reflect a premium plug-in unit, benefits include reduced downtime, faster field service, and predictable maintenance cycles. Certifications ease audits, while the robust interrupt ratings reduce failure-related losses in high-availability facilities.