Eaton P3BLD3300N Plug-in Breaker - 65 kAIC 600V
Part Number: P3BLD3300N
Quick Summary
The Eaton P3BLD3300N is a plug-in circuit breaker unit for Pow-R-Way III busway systems. Engineers often face wiring complexity, downtime, and compatibility gaps in modular busway installations. This unit carries UL 857 listings with ANSI/IEEE and CSA certifications and is NEMA compliant, aligning safety and regulatory expectations. With a 300 A rating and interrupt capabilities across 240, 480, and 600 V, it delivers reliable protection while maximizing space in busway plug enclosures. The design supports 100% Neutral operation and 50% integral or housing grounding, reducing installation time and improving total cost of ownership in industrial power distributions.
Product Information
Extended Description
P3BLD3300N Eaton: Eaton Pow-R-Way III circuit breaker plug-in unit, Busway, 3-pole, 4-wire, LD, Plug enclosure, 600V, Breaker, L Fame (125-600 A), 300A, 65 kAIC at 240 Vac, 35 kAIC at 480 Vac, 25 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
P3BLD3300N
UPC
782116623600
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
ANSI IEEE Certified CSA Certified UL 857
Circuit Breaker Frame
L
Design
Pow-R-Way III
Grounding Options
50% Integral/Housing
Number Of Poles
Three-pole
Number of wires
Four-wire
Type
Breaker
Amperage Rating
300 A
Interrupt rating
65 kAIC at 240 Vac, 35 kAIC at 480 Vac, 25 kAIC at 600 Vac
Neutral Options
100%
Voltage rating
600 V
Application
Busway
Product Category
Plug enclosure
Feature → Business Impact → Application: Three-pole, four-wire, 600 V Pow-R-Way III design delivers heavy-load handling with reduced wiring complexity, enabling faster retrofits in dense plant layouts and simplified maintenance workflows for large factories. Application: busway distribution centers seeking compact, robust protection. Feature → Business Impact → Application: Interrupt ratings of 65 kAIC at 240 Vac, 35 kAIC at 480 Vac, and 25 kAIC at 600 Vac provide strong short-circuit protection, lowering arc-flash risk and equipment damage in critical lines. Application: high-energy industrial environments and safety-conscious facilities. Feature → Business Impact → Application: 100% Neutral with 50% Integral/Housing Grounding options simplifies grounding schemes, improving safety and compliance in complex busway enclosures. Application: electrical rooms with mixed grounding requirements. Feature → Business Impact → Application: NEMA compliance, UL 857, ANSI/IEEE, and CSA certifications remove regulatory barriers, accelerating project approvals and reducing risk in regulated industries. Application: hospitals, data centers, and manufacturing facilities. Feature → Business Impact → Application: 300 A amperage and L frame Pow-R-Way III compact enclosure enable space-efficient installations, reducing panel footprint and enabling easier future expansions. Application: retrofit projects and new builds with tight footprint constraints. Feature → Business Impact → Application: Dimensions and weight (19.65 in x 41.91 in x 10.15 in; 75 lb) support straightforward transport and on-site handling, minimizing installation challenges. Application: field deployments where handling and shipping considerations matter.
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FAQs
To install the P3BLD3300N, mount the plug-in unit into a Pow-R-Way III busway enclosure designed for three-pole, four-wire configurations. Ensure a clean bus contact surface, verify the 600 V rating and 300 A current path, secure grounding as required (100% Neutral with 50% integral or housing ground), and perform a final continuity check. This streamlined approach minimizes downtime and supports straightforward future swaps or expansions.
The P3BLD3300N provides 25 kAIC at 600 Vac, along with 65 kAIC at 240 Vac and 35 kAIC at 480 Vac. These ratings offer robust short-circuit protection for 600 V distributions while maintaining fast clearing at lower voltages, helping preserve equipment and reduce arc-flash risk in demanding environments.
Yes. The device is specifically rated for 600 V operations and is designed for heavy-duty power distribution in busway systems. Its 300 A capacity and three-pole, four-wire configuration make it suitable for large industrial facilities requiring reliable protection, compact plug-in installation, and compatibility with Pow-R-Way III busways.
The P3BLD3300N carries UL 857 listing and ANSI/IEEE certification, along with CSA certification and NEMA compliance. These certifications verify safety, performance, and interoperability with North American electrical standards, reducing regulatory risk for industrial installations.
Maintenance benefits include reduced downtime due to plug-in design, easier swaps during retrofits, and standardized dimensions for quick field replacement. ROI is driven by improved uptime, space efficiency in busway plug enclosures, and compliance with multiple standards, which lowers project risk and long-term operating costs.