Eaton P3BKW3400GN Circuit Breaker Plug-in Unit - 85kAIC
Part Number: P3BKW3400GN
Quick Summary
The Eaton P3BKW3400GN is a Pow-R-Way III circuit breaker plug-in unit designed for busway distribution in industrial facilities. Engineers often face downtime during fault isolation and protection upgrades, making modular plug-in protection essential. This unit carries ANSI/IEEE certification, UL 857, and CSA certification, with NEMA compliance to ensure compatibility across panels and environments. With a 400 A amperage rating, 85 kAIC at 220–240 V (and 45 kAIC at 380–415 V, 20 kAIC at 660–690 V) plus 100% Neutral, it delivers reliable protection and straightforward integration with Pow-R-Way III busways, helping reduce maintenance costs and improve system uptime.
Product Information
Extended Description
P3BKW3400GN Eaton: Eaton Pow-R-Way III circuit breaker plug-in unit,Busway,Three-pole,KW,Plug,Breaker,K Frame (70-400 A),400A,85 kAIC 220-240,45 kAIC at 380-415 Vac,20 kAIC at 660-690 Vac,100% Neutral,50% Internal Ground
Product Name
Eaton Pow-R-Way III circuit breaker plug-in unit
Catalog Number
P3BKW3400GN
UPC
782116629145
Product Length/Depth
13.29 in
Product Height
34.41 in
Product Width
7.79 in
Product Weight
53 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
ANSI IEEE Certified UL 857 CSA Certified
Circuit Breaker Frame
K
Design
Pow-R-Way III
Grounding Options
50% Internal
Number Of Poles
Three-pole
Type
Breaker
Amperage Rating
400A
Interrupt rating
85 kAIC 220-240, 45 kAIC at 380-415 Vac, 20 kAIC at 660-690 Vac
Neutral Options
100%
Application
Busway
Product Category
Plug
Three-pole KW frame and a 400 A rating provide robust protection for high-load busway feeders, translating to fewer nuisance trips and improved system reliability in manufacturing lines. The high interrupt ratings of 85 kAIC at 220–240 V, 45 kAIC at 380–415 V, and 20 kAIC at 660–690 V protect sensitive drive systems and motors from fault currents, reducing downtime and extending equipment life in conveyors and presses. A 100% Neutral and 50% Internal Ground design simplifies wiring strategies and enhances fault isolation clarity, which lowers commissioning time and simplifies maintenance in complex power layouts. Designed for Pow-R-Way III busways, the plug-in concept speeds replacement and upgrades, minimizing panel downtime during modernization projects. Compliance with UL 857, ANSI/IEEE, CSA, and NEMA standards reduces regulatory risk and supports audit readiness in regulated environments. Its dimensions and 53 lb weight facilitate planning for rack space and mounting in compact control rooms or switchgear footprints, enabling efficient facility design.
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FAQs
Yes. The P3BKW3400GN is purpose-built as a three-pole plug-in unit for Eaton Pow-R-Way III busway configurations. It offers a plug-in design that aligns with K-frame breakers and three-pole assemblies, enabling quick integration into existing busway sections. Its dimensions and mounting approach simplify space planning, while maintaining secure electrical connections and consistent alignment with adjacent modules.
The unit is rated for 400 A with multiple interrupt levels: 85 kAIC at 220–240 VAC, 45 kAIC at 380–415 VAC, and 20 kAIC at 660–690 VAC. It provides 100% neutral and 50% internal grounding. This combination supports motor loads, feeders, and general-purpose circuits across typical industrial distribution scenarios, ensuring protection against high fault currents while maintaining flexible operation across voltage bands.
Yes. The device is designed as a three-pole breaker with a K-frame and Pow-R-Way III architecture, specifically intended for busway distribution in industrial settings. It supports large feeders and motor circuits, provides dependable fault protection, and integrates with existing busway segments to minimize wiring complexity during expansion or upgrades.
This plug-in unit carries ANSI/IEEE certification, UL 857, and CSA certification, along with NEMA compliance. These certifications attest to its safety, reliability, and interoperability in industrial power systems, facilitating regulatory audits and ensuring compatibility with common electrical panels and busway configurations.
Regular inspection of plug-in connections, neutral terminations, and grounding pathways is advised to prevent contact resistance and maintain performance. The modular plug-in design reduces downtime during replacements, enhancing uptime and lowering service costs. Its robust interrupt ratings support longer service intervals for critical feeders, contributing to a lower total cost of ownership in facilities with high reliability requirements.