Eaton P3BFDB3020N circuit breaker plug-in unit - UL 857
Part Number: P3BFDB3020N
Quick Summary
The P3BFDB3020N circuit breaker plug-in unit from Eaton delivers reliable overcurrent protection for three-phase busway systems. Engineers often wrestle with coordinating plug-in units in busway layouts while meeting demanding short-circuit ratings and grounding options. This unit carries UL 857 certification, ANSI/IEEE recognition, CSA certification, and NEMA compliance, ensuring regulatory alignment for industrial installations. Designed for 20A operation with 18 kAIC at 240V and 14 kAIC at 480/600V, it supports scalable protection while simplifying procurement. In practice, it offers quick installation, robust reliability, and predictable maintenance costs, making it a strong fit for power distribution projects seeking efficiency, safety, and compliance.
Product Information
Extended Description
P3BFDB3020N Eaton: Eaton Pow-R-Way III circuit breaker plug-in unit, Busway, Three-pole, FDB, Plug, Breaker, F Frame (15-225 A), 20A, 18 kAIC at 240 Vac, 14 kAIC at 480 Vac, 14 kAIC at 600 Vac, 100% Neutral, 50% Integral or Housing Ground
Product Name
Eaton Pow-R-Way III circuit breaker plug-in unit
Catalog Number
P3BFDB3020N
UPC
786683005913
Product Length/Depth
12.36 in
Product Height
21.2 in
Product Width
5.43 in
Product Weight
25 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Compliances
NEMA Compliant
Certifications
UL 857 ANSI IEEE Certified CSA Certified
Circuit Breaker Frame
F
Design
Pow-R-Way III
Grounding Options
50% Integral/Housing
Number Of Poles
Three-pole
Type
Breaker
Amperage Rating
20A
Interrupt rating
18 kAIC at 240 Vac, 14 kAIC at 480 Vac, 14 kAIC at 600 Vac
Neutral Options
100%
Application
Busway
Product Category
Plug
Three-pole, Pow-R-Way III plug-in unit provides a compact, modular protection solution for busway distributions. Feature: three-pole plug-in design with F-frame compatibility. Business impact: streamlined installation and faster changeouts reduce downtime and spare-part needs. Application: busway power distribution where space is at a premium and modularity matters. Feature: 20A amperage rating. Business impact: aligns with controlled branch-circuit protection while enabling scalable system expansion. Application: small to medium busway sections requiring precise current limitation. Feature: 18 kAIC at 240V and 14 kAIC at 480/600V interrupt ratings. Business impact: high fault-current capability ensures system protection without nuisance tripping—critical for manufacturing lines and data centers. Application: facilities with varying service voltages and high short-circuit potential. Feature: 100% Neutral and 50% Integral/Housing Grounding. Business impact: simplifies grounding schemes and improves fault-path integrity with fewer components. Application: electrical rooms and switchgear assemblies demanding reliable grounding. Feature: UL 857, ANSI/IEEE, CSA certifications and NEMA compliance. Business impact: regulatory alignment reduces approval cycles and risk, easing procurement for regulated environments. Application: industrial installations needing formal certifications. Feature: dimensions and weight 12.36 in L × 21.2 in H × 5.43 in W at 25 lb. Business impact: predictable fit in standard racks and busway housings, easing layout planning and shipping. Application: site installations where space planning and transport matter.
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FAQs
The P3BFDB3020N is a three-pole plug-in unit designed for Pow-R-Way III busway. Install by aligning the plug-in terminals with the busway connector banks, securing the unit in the F-frame housing, and ensuring proper grounding per 50% integral/housing grounding. The device supports 20A protection with 100% neutral, simplifying replacement and minimizing panel footprint while preserving fault-clearing performance.
This unit provides 20A nominal current with an 18 kAIC interrupt rating at 240V and 14 kAIC at 480V and 600V. These ratings enable robust protection for busway runs subject to high short-circuit currents, while limiting equipment damage and downtime during faults. It supports 100% neutral and 50% integral grounding for reliable fault paths.
Yes. The P3BFDB3020N is specified for 240V, with 14 kAIC ratings at 480V and 600V. This makes it suitable for mixed-voltage busway configurations in industrial facilities, data centers, and manufacturing floors where higher-voltage distribution is present. Its 20A rating aligns with typical branch-circuit protection in modular busway installations.
The unit is UL 857 certified and also carries ANSI/IEEE recognition and CSA certification, with NEMA compliance. This combination ensures regulatory alignment for industrial electrical installations, facilitating safer approval processes and consistent performance across markets that require strict electrical standards.
With a compact plug-in design, straightforward replacement in Pow-R-Way III busways, and high fault-current ratings, the P3BFDB3020N lowers maintenance time and spare-parts inventory. The 1-year warranty (or 18 months from shipment) provides risk mitigation, while regulatory certifications reduce commissioning time and support a faster return on investment for power distribution upgrades.