Eaton 6543PMURN Unipak capacitor bank - UL Listed
Part Number: 6543PMURN
Quick Summary
Eaton 6543PMURN Unipak capacitor bank provides reactive power compensation for low-voltage distribution in industrial electrical systems. Facility teams often struggle with wasted energy, voltage fluctuations, and motor stalling that erodes uptime. UL Listed and CSA Certified ensure safety and compliance in North American installations across facilities, data centers, and manufacturing lines. Designed for three-phase, 480 V systems, this Unipak bank supports power-factor improvement, energy cost reduction, and straightforward procurement through a standard catalog item. Its robust 14 gauge steel enclosure with durable powder coat finish enhances field reliability in demanding plant environments. Certification and warranty details are backed by Eaton's support, helping procurement teams minimize risk and streamline supplier qualification.
Product Information
Extended Description
6543PMURN Eaton: Eaton LV Unipak capacitor bank, UNIPAK, Low Voltage Fixed Capacitor Banks, 78A, 480V, Three-phase, 65 kVAR, Unprotected, Non-fused, 14 ga. steel finished with durable powder coat finish, C1 Frame
Product Name
Eaton LV Unipak capacitor bank
Catalog Number
6543PMURN
UPC
782116075959
Product Length/Depth
10.6 in
Product Height
26.3 in
Product Width
12.1 in
Product Weight
63.7 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
78A
Phase
Three-phase
Product Category
Low Voltage Fixed Capacitor Banks
Voltage rating
480 V
Enclosure
NEMA 1, NEMA 3R
Enclosure material
14 gauge steel finished with durable powder coat finish
Frame size
C1
Protection
Non-fused
Rating
65 kVAR
Eaton Specification Sheet - 6543PMURN
Selling Policy 25-000 - Distribution and Control Products and Services
The 65 kVAR rating delivers precise reactive power compensation for medium-sized LV networks, enabling improved power factor, reduced currents, and lower utility demand charges across three-phase 480 V systems. Practically, this means steadier voltage, longer motor life, and lower energy costs in manufacturing lines, HVAC drives, and critical process loads. The NEMA 1, NEMA 3R enclosure housed in 14 gauge steel with a durable powder coat finish provides corrosion and dust resistance, reducing maintenance cycles and extending service life in harsh plant environments. A non-fused, unprotected design simplifies installation and replacement, cutting upfront costs and accelerating deployment in controlled factory settings. With frame size C1 and a compact 10.6 in depth, it integrates smoothly into existing switchgear and panel spaces. Eaton’s warranty policy and certified construction further mitigate risk for procurement and commissioning teams.
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FAQs
To install the 6543PMURN, verify 480 V three-phase power, ensure mounting space for the 26.3 in height and 12.1 in width footprint, and connect to a compliant electrical enclosure. The unit’s NEMA 1, NEMA 3R rating supports indoor and outdoor environments, while the 14 gauge steel with powder coat finish resists corrosion. Plan for non-fused protection and confirm the catalog notes for 208 V conversions if applicable.
The 65 kVAR rating is specified at 480V, and the catalog notes indicate multiplying the 240V kVAR rating by 0.75 to estimate the kVAR at 208V. This helps engineers size the bank for expected loads, ensuring sufficient reactive power compensation across voltage variations common in manufacturing facilities and mixed-load environments.
Yes. The three-phase 480V design with a 65 kVAR rating supports power-factor improvement and voltage stability, reducing motor heating, torque fluctuations, and line losses that can affect CNC machines and conveyors. The compact C1 frame and robust enclosure enable easy integration into existing switchgear, improving reliability for high-demand production lines.
This unit is UL Listed and CSA Certified, providing third-party safety and compatibility verification. These certifications support compliance with North American electrical codes, reduce supplier risk in audits, and facilitate procurement through trusted vendor standards for industrial and data-center deployments.
Plan for routine visual inspections and periodic verification of connections, given the non-fused, unprotected design. The rugged powder-coated enclosure and 14 ga steel body support long service life in demanding environments, contributing to lower maintenance costs and faster ROI through energy savings from improved power factor and reduced utility charges.