Eaton P3BMDL3700N Pow-R-Way III circuit breaker - UL 857
Part Number: P3BMDL3700N
Quick Summary
Eaton Pow-R-Way III circuit breaker plug-in unit provides reliable busway protection for medium- to large-scale electrical installations. Maintenance often stalls when parts are hard to source or plug-in compatibility is unclear. With IEEE Certified, ANSI, CSA, and UL 857 certifications alongside NEMA compliance, it meets rigorous safety and interoperability standards. Designed for busway protection in M-frame plug-in configurations, it helps facilities reduce downtime and streamline maintenance planning while supporting high interrupt ratings.
Product Information
Extended Description
P3BMDL3700N Eaton: Eaton Pow-R-Way III circuit breaker plug-in unit, Busway, Three-pole, MDL, Plug, Breaker, M Frame (300-800 A), 700A, 65 kAIC at 240 Vac, 50 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
P3BMDL3700N
UPC
786683019583
Product Length/Depth
19.65 in
Product Height
45.89 in
Product Width
10.15 in
Product Weight
136 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
IEEE Certified ANSI CSA Certified UL 857
Circuit Breaker Frame
M
Design
Pow-R-Way III
Grounding Options
50% Integral/Housing
Number Of Poles
Three-pole
Type
Breaker
Amperage Rating
700A
Interrupt rating
65 kAIC at 240 Vac, 50 kAIC at 480 Vac, 25 kAIC at 600 Vac
Neutral Options
100%
Application
Busway
Product Category
Plug
The 700A amperage rating and three-pole M-frame design deliver robust load handling for busway protection, reducing nuisance trips and equipment damage in busy facilities. This configuration supports efficient power distribution across 240, 480, and 600 V systems, enabling predictable protection coordination and uptime in manufacturing environments. The 100% Neutral option with 50% integral or housing grounding simplifies grounding strategy, minimizes wiring complexity, and accelerates panel assembly during installation. Certified interoperability—IEEE, ANSI, CSA, UL 857—with NEMA compliance assures regulatory alignment, easing procurement and cross-supplier integration for multi-site projects. The plug-in design, combined with dimensions (19.65 in depth x 45.89 in height x 10.15 in width) and a 136 lb weight, supports straightforward replacement and installation in existing busway layouts, reducing downtime. A one-year warranty (or 18 months from shipment) provides added risk mitigation and long-term cost control for maintenance programs.
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FAQs
For installation, confirm the unit is used in a three-pole busway arrangement with an M-frame design and 100% Neutral support. Verify mounting space for the 19.65 in depth, 45.89 in height, and 10.15 in width, and plan for the 136 lb weight. Ensure grounding options align with the 50% Integral/Housing Ground configuration and that compatible Eaton busway components are used to guarantee proper plug-in alignment and performance.
The unit delivers 700A with interrupt ratings of 65 kAIC at 240 VAC, 50 kAIC at 480 VAC, and 25 kAIC at 600 VAC in a three-pole arrangement. This range supports safe fault clearance across common industrial voltages, enabling coordinated protection with downstream devices and minimizing arc energy exposure in high-load busway networks.
Yes. The P3BMDL3700N is designed specifically for three-phase busway systems, using an M-frame plug-in configuration and three-pole construction to maximize protection coverage in medium-to-large facilities. Its 700A rating and adjustable grounding options make it suitable for high-load distribution nodes, ensuring reliable startup, fault clearance, and ease of integration with existing electrical infrastructure.
This circuit breaker plug-in unit carries IEEE Certified, ANSI, CSA Certified, and UL 857 certifications, with NEMA compliance. These align with common industry safety and performance standards, helping procurement teams demonstrate regulatory readiness, simplify audits, and ensure compatibility with other certified components in multi-vendor lists.
The unit’s plug-in design facilitates quick replacement and reduces downtime during maintenance, contributing to higher overall equipment availability. With a standard one-year warranty (or 18 months from shipment), manufacturers gain predictable support costs. The combination of high interrupt ratings, robust grounding options, and NEMA/UL compliance also lowers risk, helping justify lifecycle cost improvements and optimized spare-part inventories.