Eaton PRL2X3400X42AD Panelboard - UL 67/NEMA Compliant
Part Number: PRL2X3400X42AD
Quick Summary
Eaton Pow-R-Xpress PRL2X panelboard is a high-density power distribution solution for 480/277V systems in commercial and light industrial environments. It targets the common pain points of retrofit projects and expanding electrical loads where space is at a premium. This panelboard carries UL 67 certification and is NEMA compliant, with an aluminum bus delivering durable, corrosion-resistant performance in challenging installations. The design supports fast installation and scalable circuit density, aligning with project schedules and budget constraints. By combining reliability with ease of maintenance, it helps facilities reduce downtime and total cost of ownership while meeting evolving lighting and control requirements.
Product Information
Extended Description
PRL2X3400X42AD Eaton: PRL2X 480/277 3P4W 400A 42CKT AL DENSITY RATED BUS WITH DUAL SFB PROVISION
Product Name
Eaton Pow-R-Xpress PRL2X panelboard
Catalog Number
PRL2X3400X42AD
UPC
786689885557
Product Length/Depth
79 in
Product Height
3.75 in
Product Width
8.5 in
Product Weight
179.54 lb
Compliances
NEMA Compliant
Certifications
UL 67
Bus material
Aluminum
Type
PRL2X INTERIOR
Amperage Rating
400A
Pow-R-Xpress stocking program flyer
Pow-R-Xpress stocking program flyer
Pow-R-Xpress stocking program flyer
Pow-R-Line Xpert family overview
Feature → Business Impact → Application: 400A amperage rating with 42 circuits and 3P4W 480/277V capability enables handling larger loads in a single enclosure, reducing the number of sub-panels and saving space in mechanical rooms. This translates to lower conduit runs and faster commissioning in facilities such as manufacturing lines or office campuses where rapid deployment matters. Application: new builds or retrofits seeking compact, capable power distribution for lighting and emergency systems. Feature → Business Impact → Application: Aluminum bus material provides durable, corrosion-resistant performance with lower impedance, improving fault-clearing speed and long-term reliability. This supports higher uptime in environments with temperature variations and exposure to humidity. Application: harsh or outdoor-adjacent panels, data centers, and industrial plants requiring robust bus construction. Feature → Business Impact → Application: Dual SFB provision allows future feeder additions without reworking interior components, enabling seamless scalability. This reduces total project risk and future-proofing costs as loads grow. Application: phased facility upgrades and operations expanding from initial lighting controls to additional power circuits. Feature → Business Impact → Application: 79 inch depth and 8.5 inch width deliver a high circuit density within a compact footprint, improving space utilization in electrical rooms with limited real estate. Application: small-to-medium facilities needing dense panelboard solutions for lighting, controls, and small motor circuits. Feature → Business Impact → Application: NEMA compliance and UL 67 certification provide safety and regulatory assurance, simplifying building inspections and reducing commissioning delays. Application: projects governed by strict electrical codes and safety standards across commercial and manufacturing sectors. Feature → Business Impact → Application: 42CKT interior leveraging 480/277V enables standardized integration with common building electrical systems and lighting networks, lowering design complexity. Application: facilities standardizing on Pow-R-Xpress family for consistent maintenance, spare parts, and service planning.
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FAQs
The PRL2X3400X42AD is a 400A, 42-circuit panelboard designed for 480/277V three-phase four-wire distribution. It features aluminum bus and interior assembly with a 79 in depth footprint, 8.5 in width, and 3.75 in height. Plan for adequate access for wiring, space for future SFB expansion, and compatible enclosure mounting per UL 67/NEMA guidelines.
Dual SFB (short-circuit fault protection) provisions enable addition of feeders without reworking the interior. This reduces upgrade downtime, lowers field labor, and allows phased capacity increases as loads grow, which is especially valuable during facility expansions or changes in lighting and control strategies.
Yes. The PRL2X3400X42AD supports 480/277V and 3P4W configurations with 42 circuit capacity, making it suitable for dense lighting control and critical power distribution in data centers and industrial facilities. Its aluminum bus and UL 67/NEMA compliance further ensure safe, reliable operation in dynamic environments.
The panelboard is UL 67 listed and NEMA compliant, indicating safety and compatibility with standard electrical installations. These certifications reduce inspection time and help ensure code compliance across commercial and light-industrial projects.
Benefits include faster installation due to standardized Pow-R-Xpress design, reduced panel footprint with high circuit density, and lower maintenance costs from durable aluminum bus and robust construction. The dual SFB provision enables scalable capacity, improving long-term ROI by delaying or avoiding future panel retrofits.