Eaton P3BLD3450 Circuit Breaker Plug-In Unit - UL 857
Part Number: P3BLD3450
Quick Summary
The Eaton P3BLD3450 circuit breaker plug-in unit delivers reliable protection for busway power distributions. Many facilities struggle with uptime when protective devices don’t meet demand, causing unexpected outages. This unit carries UL 857, CSA, and IEEE/ANSI certifications, reinforcing safety and interchangeability across industrial installations. Built for busway installations with the Pow-R-Way III design, it speeds commissioning and improves reliability, reducing maintenance and total cost of ownership. The unit supports 450A loads at 600V and offers 50% integral grounding, making it versatile for a range of industrial feeders while delivering strong business value. Its three-pole, three-wire configuration aligns with standard busway architectures and simplifies field replacement.
Product Information
Extended Description
P3BLD3450 Eaton: Eaton Pow-R-Way III circuit breaker plug-in unit, Busway, Three-pole, Three-wire, LD, 600V, Breaker, L Fame (125-600 A), 450A, 65 kAIC at 240 Vac, 35 kAIC at 480 Vac, 25 kAIC at 600 Vac, None, 50% Integral or Housing Ground
Product Name
Eaton Pow-R-Way III circuit breaker plug-in unit
Catalog Number
P3BLD3450
UPC
786685532394
Product Length/Depth
19.65 in
Product Height
41.91 in
Product Width
10.15 in
Product Weight
75 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
CSA Certified IEEE Certified ANSI UL 857
Circuit Breaker Frame
L
Design
Pow-R-Way III
Grounding Options
50% Integral/Housing
Number Of Poles
Three-pole
Number of wires
Three-wire
Type
Breaker
Amperage Rating
450A
Interrupt rating
65 kAIC at 240 Vac, 35 kAIC at 480 Vac, 25 kAIC at 600 Vac
Voltage rating
600 V
Application
Busway
450A amperage rating ensures robust protection for large busway feeders, enabling simultaneous protection of high-load circuits with fewer devices. This reduces panel counts, simplifies wiring, and shortens commissioning time, which translates to noticeable project savings. It is well suited for mid- to high-load industrial distribution networks in manufacturing, data centers, and distribution facilities. The unit’s interrupt ratings of 65 kAIC at 240V, 35 kAIC at 480V, and 25 kAIC at 600V deliver strong fault-current protection across common industrial voltages, helping protect downstream equipment and improve personnel safety during fault events. This high interrupt capability is critical for facilities with elevated fault potential or dense busway configurations. With a 600V rating and a three-pole, three-wire design, it integrates cleanly into standard three-phase busway runs, reducing integration risk. Built for Plug-in use in Pow-R-Way III systems, it simplifies field replacement and minimizes downtime during maintenance. Grounding options include 50% integral or housing grounding, offering flexible bonding schemes and reduced wiring complexity, accelerating installation and ensuring compliance with grounding codes. The Pow-R-Way III design provides a dependable, modular plug-in approach for Eaton busway installations, with NEMA compliance and UL 857 listing supporting interchangeability within the family. The unit’s weight and dimensions—75 lb, 19.65 in length, 41.91 in height, and 10.15 in width—facilitate robust protection without imposing excessive enclosure space. Certifications and warranty—UL 857, CSA, IEEE, ANSI, and Eaton’s standard warranty—attenuate procurement risk and support lifecycle cost control in industrial projects.
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FAQs
Yes. The P3BLD3450 is a Pow-R-Way III three-pole plug-in unit designed for busway distributions. It supports standard three-wire configurations and L-frame mounting, with 50% integral ground options. Its NEMA compliance and UL 857 listing ensure seamless interconnection with compatible Eaton busway products, simplifying field replacement and reducing installation risk. Typical packages weigh 75 lb and measure 19.65 in by 41.91 in by 10.15 in, aiding planning calculations.
The unit provides 450A amperage with a 600V rating. Interrupt ratings are 65 kAIC at 240V, 35 kAIC at 480V, and 25 kAIC at 600V. These ratings deliver robust short-circuit protection across common industrial voltages, helping protect downstream equipment and improve personnel safety during fault events.
Ideal for busway distribution in manufacturing plants, data centers, and process facilities, the P3BLD3450 supports high-load feeders and dense busway configurations. Its three-pole, three-wire design and robust grounding options align with standard industrial feeder schemes, enabling reliable protection and straightforward integration into retrofit or new-build projects.
The P3BLD3450 carries UL 857 certification, plus CSA and IEEE/ANSI certifications, with NEMA compliance noted as well. These certifications ensure safety, performance, and interchangeability within industrial power systems, reducing procurement risk and simplifying compliance during audits and inspections.
Eaton provides a warranty per policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. This protects against manufacturing defects and supports total cost of ownership by reducing unforeseen maintenance costs. Regular checks on connections and grounding integrity are recommended to sustain performance in demanding environments.