Eaton 523PMURN Unipak Capacitor Bank - UL Listed
Part Number: 523PMURN
Quick Summary
Eaton 523PMURN LV Unipak capacitor bank provides reactive power support for three-phase 240V systems in industrial facilities. End users often battle voltage sags, rising energy costs, and penalties from poor power factor, especially with motor and HVAC-heavy loads. UL Listed and CSA Certified ensure compliance, while the NEMA 1/NEMA 3R enclosure options support indoor and rugged outdoor mounting. Designed for easy LV system integration, this unit delivers measurable business value through improved efficiency, reduced utility charges, and simplified maintenance across distributed power networks.
Product Information
Extended Description
523PMURN Eaton: Eaton LV Unipak capacitor bank, UNIPAK, Low Voltage Fixed Capacitor Banks, 12A, 240V, Three-phase, 5 kVAR, Unprotected, Non-fused, 14 ga. steel finished with durable powder coat finish, A2 Frame
Product Name
Eaton LV Unipak capacitor bank
Catalog Number
523PMURN
UPC
782116075379
Product Length/Depth
5.954 in
Product Height
22.3 in
Product Width
8.5 in
Product Weight
29 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.
Certifications
UL Listed CSA Certified
Catalog Notes
Multiply the 240V kVAR rating by 0.75 to calculate the kVAR value at 208V.
Type
UNIPAK
Amperage Rating
12A
Phase
Three-phase
Product Category
Low Voltage Fixed Capacitor Banks
Voltage rating
240V
Enclosure
NEMA 1, NEMA 3R
Enclosure material
14 gauge steel finished with durable powder coat finish
Frame size
A2
Protection
Non-fused
Rating
5 kVAR
The 523PMURN delivers 5 kVAR at 240V with a 12A amperage rating in a compact UNIPAK three-phase package, enabling targeted reactive power support where it matters most. This translates to improved power factor, lower utility penalties, and enhanced motor performance, especially in facilities with compressors, pumps, or large drives. The powder-coated 14 gauge steel enclosure provides durable protection and a professional finish, with NEMA 1 for indoors and NEMA 3R for outdoor or damp environments, reducing risk during installation and service. Its non-fused protection simplifies wiring schemes and field maintenance, while the A2 frame size and 29 lb weight enable easier rack mounting or retrofit into existing panels. A 0.75 adjustment factor for 208V operation is documented, helping engineers size replacements accurately. Certifications and a standard warranty further support long-term reliability and a favorable total cost of ownership.
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FAQs
Installers should mount the UNIPAK unit in a suitable enclosure that supports its NEMA rating (NEMA 1 for indoor or NEMA 3R for outdoor/damp locations). Ensure adequate clearance for service access andVentilation. Use appropriate LV distribution compatibility with three-phase 240V systems and follow the catalog guidance on kVAR sizing and connection to the supply side of motors or power factor correction points.
The unit is 12A, three-phase, and rated for 240V with a 5 kVAR output. It uses a non-fused protection scheme and comes in a frame size A2 with a 14 gauge steel enclosure finished in powder coat. Dimensions are 5.954 in depth, 22.3 in height, and 8.5 in width, with a weight of 29 lb.
Yes, for 208V systems the kVAR rating is typically scaled using the catalog note: multiply the 240V kVAR by 0.75 to estimate the effective kVAR at 208V. This ensures reactive power aligns with system voltage for proper power factor correction and voltage stability.
The unit is UL Listed and CSA Certified, reflecting compliance with safety and performance standards for electrical equipment used in mission-critical power factor correction applications.
With non-fused protection and a robust powder-coated enclosure, routine visual inspection and wiring checks are usually sufficient. The unit carries Eaton's warranty policy (one year from installation or eighteen months from shipment). Plan for periodic dielectric testing and magnetic balance checks if used in high-load or variable-speed motor applications to sustain performance.