Eaton P3BLD3500NSP Pow-R-Way III circuit breaker - UL 857
Part Number: P3BLD3500NSP
Quick Summary
Eaton Pow-R-Way III circuit breaker plug-in unit protects busway-fed power systems in industrial facilities. Engineers often contend with sprinkler-proof, fast-install solutions that still meet 600 V ratings and complex grounding needs. This unit is certified to UL 857, IEEE, ANSI CSA, and supports 100% neutral with 50% integral grounding in a three-pole, four-wire configuration. Designed for busway environments, it delivers reliable interruption performance with 65 kAIC at 240 Vac, 35 kAIC at 480 Vac, and 25 kAIC at 600 Vac, while accommodating a 600 V system. The plug enclosure approach reduces installation time and simplifies maintenance, helping maintenance teams improve uptime and regulatory compliance in both manufacturing and distribution facilities.
Product Information
Extended Description
P3BLD3500NSP Eaton: Eaton Pow-R-Way III circuit breaker plug-in unit,Sprinkler-proof,Busway,3-pole,4-wire,LD,Plug encl,600V,Breaker,L Fame (125-600 A),500A,65 kAIC at 240 Vac,35 kAIC at 480 Vac,25 kAIC at 600 Vac,100% Neut,50% Integral/Housing Grd
Product Name
Eaton Pow-R-Way III circuit breaker plug-in unit
Catalog Number
P3BLD3500NSP
UPC
786685180199
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
UL 857 IEEE Certified ANSI CSA Certified
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
500A
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
Special features
Sprinkler-proof plug-in
Feature: Sprinkler-proof plug-in design → Business Impact: enhances safety and compliance in hazardous or regulated zones; Application: warehouse and factory floor power protection with minimal maintenance complexity. The sprinkler-proof construction reduces risk during servicing and ensures continued operation in critical areas. Feature: 3-pole, 4-wire with 100% neutral → Business Impact: balanced, reliable fault protection and accurate fault signaling; Application: busway-distributed loads where neutral integrity is essential. Feature: Grounding options of 50% integral/housing → Business Impact: streamlined installation and flexible retrofits; Application: retrofit projects and modular power distribution where space is constrained. Feature: High interrupt ratings (65 kAIC at 240 Vac, 35 kAIC at 480 Vac, 25 kAIC at 600 Vac) → Business Impact: robust protection for high-energy systems; Application: data centers, manufacturing lines, and process facilities. Feature: 600 V rating with 500 A capacity and Sprinkler-proof enclosure → Business Impact: supports large installations with safe operation; Application: large busway feeders and plug-in circuit protection. Feature: Compliance and compatibility (UL 857, IEEE, ANSI, CSA; NEMA) → Business Impact: reduces regulatory risk and accelerates approvals; Application: regulated industrial environments and multi-seller assemblies.
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FAQs
For reliable busway integration, confirm three-pole, four-wire configuration with 100% neutral and 50% integral grounding as specified. Use compatible Pow-R-Way III plug-in frames, ensure adequate clearance for depth (19.65 in) and height (41.91 in), and follow Eaton torque and wiring guidelines to maintain UL 857 compliance and optimal interrupt performance.
Key specs include a 500 A amperage rating with interrupt ratings of 65 kAIC at 240 Vac, 35 kAIC at 480 Vac, and 25 kAIC at 600 Vac. It operates at 600 V, supports a 100% neutral, and offers 50% integral grounding, making it suitable for high-energy, busway-distributed systems.
Yes. The unit carries UL 857, IEEE, ANSI, and CSA certifications and is NEMA compliant, providing the regulatory assurance needed for sectors like oil & gas, chemical processing, and critical manufacturing where safety and compliance are paramount.
The sprinkler-proof plug-in enclosure enables quicker replacement and service compared with traditional bolt-in units. Its modular nature reduces downtime during maintenance, simplifies spare parts planning, and supports faster field swaps without extensive rewiring, which translates into lower maintenance costs and shorter plant outages.
Applications include busway-fed distributions in industrial plants, data centers, and distribution centers where high energy protection, reliable neutral performance, and sprinkler-proof, plug-in installation are critical. Its 600 V rating and robust interrupt ratings make it ideal for protecting feeders and critical loads in modular power architectures.