Eaton P3BKD3350 Circuit Breaker Plug-in Unit - UL 857 Certified
Part Number: P3BKD3350
Quick Summary
Eaton Pow-R-Way III circuit breaker plug-in unit is a three-pole protection device designed for busway installations in industrial power distribution. Designers often face challenges with cross-compatible busway frames, grounding options, and meeting high fault-current requirements across voltages. This model carries UL 857, ANSI, and CSA certifications, with NEMA compliance, providing regulatory assurance across global sites. By combining a robust 350 A rating, 65 kAIC at 240 VAC, and flexible grounding (50% integral or housing), it supports fast plug-in installation and reliable protection. In practice, it translates to shorter commissioning cycles, reduced field wiring complexity, and improved uptime, helping projects stay on schedule and within budget while maintaining safety standards.
Product Information
Extended Description
P3BKD3350 Eaton: Eaton Pow-R-Way III circuit breaker plug-in unit, Busway, Three-pole, KD, Plug, Breaker, K Frame (70-400 A), 350A, 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
P3BKD3350
UPC
786683000796
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
UL 857 ANSI IEEE Certified CSA Certified
Circuit Breaker Frame
K
Design
Pow-R-Way III
Grounding Options
50% Integral/Housing
Number Of Poles
Three-pole
Type
Breaker
Amperage Rating
350 A
Interrupt rating
65 kAIC at 240 Vac, 35 kAIC at 480 Vac, 25 kAIC at 600 Vac
Application
Busway
Product Category
Plug
Feature three-pole, KD plug-in design with a K-frame configuration. Business Impact: Enables fast field replacements and consistent contact performance, reducing downtime during routine maintenance and fault events. Application: Busway-based industrial power distribution where quick substitution and reliable protection are critical. Feature 350 A amperage rating with interrupt ratings of 65 kAIC at 240 VAC, 35 kAIC at 480 VAC, and 25 kAIC at 600 VAC. Business Impact: Supports high fault-current scenarios across multiple voltages, improving system safety and continuity. Application: Motors, feeders, and critical loads in manufacturing and process facilities. Feature 50% integral or housing grounding. Business Impact: Streamlines installation, lowers wiring errors, and enhances safety margins. Application: Direct busway connections in compact switchgear footprints. Feature NEMA Compliant with UL 857, ANSI, and CSA certifications. Business Impact: Simplifies compliance for multinational projects and reduces approvals time. Application: Global deployment with consistent standards. Feature Plug-in unit design for Pow-R-Way III busway systems. Business Impact: Accelerates project timelines and simplifies retrofit programs. Application: New builds and equipment upgrades in demanding industrial environments.
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FAQs
The P3BKD3350 is a three-pole, KD plug-in unit designed specifically for Pow-R-Way III busway configurations. It fits K-frame breakers and supports 50% integral or housing grounding, simplifying retrofits and new installations. It is compatible with standard busway layouts and is engineered to drop into compatible plug-in slots without extensive wiring, reducing commissioning time and potential connection errors.
Key specs include a 350 A amperage rating with interrupt ratings of 65 kAIC at 240 VAC, 35 kAIC at 480 VAC, and 25 kAIC at 600 VAC. It is a three-pole, KD plug-in unit with a K-frame design, suitable for busway applications and delivering high fault protection across multiple voltages while maintaining safe operating margins.
Yes. The unit is designed for industrial power distribution in busy manufacturing and processing plants. Its three-pole configuration, high interrupt ratings, and busway compatibility support motor loads, feeders, and distribution panels. The 50% integral/housing grounding option also simplifies installations in dense switchgear environments, helping minimize wiring complexity and downtime during upgrades.
P3BKD3350 carries UL 857 and CSA certifications, is ANSI certified, IEEE certified, and is NEMA compliant. These recognitions ensure regulatory compliance across diverse markets and simplify cross-border deployments, procurement, and maintenance planning.
Eaton provides a warranty of one year from the date of installation or eighteen months from the date of shipment, whichever comes first. This policy supports early life reliability and provides a clear basis for service and replacement considerations during project planning and site commissioning.