Eaton Pow-R-Xpress PRL4X3873B00C1 Panelboard - UL 67
Part Number: PRL4X3873B00C1
Quick Summary
Pow-R-Xpress panelboard is a high-capacity distribution solution for industrial electrical rooms and equipment enclosures. Trade teams commonly encounter lengthy installation times and complex copper routing when upgrading or expanding power distribution. UL 67 listing, three‑phase operation at 208/120V, and a copper bus offer robust safety, low impedance, and reliable fault paths. Designed for top-feed connections and large feeders, this interior assembly speeds wiring, reduces field labor, and supports scalable 800A service. Together these features translate to shorter commissioning windows and lower lifecycle costs for industrial facilities. This model also aligns with NEMA 1 indoor applications, ensuring dependable performance in dry, interior environments while leveraging Eaton’s engineering support for field success.
Product Information
Extended Description
PRL4X3873B00C1 Eaton: EATON POW-R-XPRESS PRL4X INTERIOR ASSY 208/120V 800A CUAG MCB
Product Name
Eaton Pow-R-Xpress PRL4X panelboard
Catalog Number
PRL4X3873B00C1
UPC
786689867713
Product Length/Depth
50.25 in
Product Height
8 in
Product Width
22 in
Product Weight
350 lb
Certifications
UL 67
Bus material
Copper
Feed type
Top
Material
COPPER
Phase
Three-phase
Type
PRL4X INTERIOR
Wire size
(2) 500-750 kcmil
Amperage Rating
800A
Bus Rating
800 A
Circuit breaker rating
800
Current - max
800
NEMA rating
1
Voltage - max
208/120
Pow-R-Xpress quick selector reference guide
Pow-R-Xpress quick selector reference guide
Pow-R-Xpress quick selector reference guide
Pow-R-Line Xpert family overview
High amperage and modular capability drive business impact: with an 800A rating, it accommodates large motors and MCC feeders, reducing the need for paralleling and enabling smoother future expansion. This translates to lower protective-relay complexity and cost-effective upgrades in manufacturing lines and process plants. Copper bus material and support for (2) 500-750 kcmil conductors minimize impedance, improving fault clearance times and reducing energy losses, which is especially valuable for high-load feeders to critical equipment. Top-feed design simplifies installation in tight spaces, cutting wiring runs and commissioning time for retrofit projects or new builds. The interior configuration, combined with a 50.25 in length and 22 in width footprint, enables straightforward integration into standard indoor enclosures and allows efficient stock management. UL 67 and NEMA 1 compliance provide regulatory peace of mind and durable performance for continuous operation in industrial settings. Overall, the PRL4X3873B00C1 supports lifecycle cost reduction through reliability, ease of maintenance, and predictable performance in demanding environments.
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FAQs
This interior panelboard assembly is designed for indoor electrical rooms and equipment enclosures requiring three-phase power at 208/120V up to 800A. It uses a copper bus with top-feed wiring and accepts large feeders (up to two 500-750 kcmil conductors). With UL 67 and a NEMA 1 rating, it is well suited for dry indoor environments and retrofit or new-build projects requiring scalable distribution.
Key specs include an Amperage Rating of 800A, Voltage - max 208/120V, Phase Three-phase, and a Bus Rating of 800 A. It accommodates (2) conductors in the 500-750 kcmil range and uses copper bus material for low impedance. The enclosure is NEMA 1 rated and UL 67 listed to meet indoor safety and performance requirements.
Yes. The top-feed design simplifies installation in spaces with limited rear clearance, making it ideal for retrofits and new builds alike. Its dimensions (50.25 in L x 22 in W x 8 in H) and 350 lb weight support straightforward handling and mounting in standard indoor enclosures, while the copper bus and large conductor capability accommodate high-load feeders efficiently.
The PRL4X3873B00C1 interior panelboard is UL 67 listed for safety in panelboard interiors and features a NEMA 1 enclosure suitable for indoor dry locations. These certifications support compliance with common electrical codes and provide confidence during audits, installations, and ongoing maintenance in industrial facilities.
Expect reduced commissioning time thanks to top-feed ease and a streamlined wiring path. The 800A rating, copper bus, and 500-750 kcmil conductor capacity lower impedance and potential energy losses, improving efficiency and protection scoping. Overall, it minimizes future expansion costs, lowers installed cost per amp, and supports reliable, scalable power distribution in manufacturing and heavy-industry environments.