Eaton 8543PMURF LV Unipak capacitor bank - UL Listed
Part Number: 8543PMURF
Quick Summary
Eaton LV Unipak capacitor bank provides reliable reactive power support for 480 V three-phase systems in industrial facilities. This solution helps reduce voltage drop and motor stress by improving power factor, addressing a common pain point of energy waste and uptime risk in heavy electrical loads. UL Listed and CSA Certified, 8543PMURF combines a robust UNIPAK design with protective fuse and indicator features to meet safety and performance standards. Designed for installers and operators, it delivers predictable performance, easy maintenance, and a clear path to energy-cost reduction within a broader fixed-capacitor bank strategy.
Product Information
Extended Description
8543PMURF Eaton: Eaton LV Unipak capacitor bank, UNIPAK, Low Voltage Fixed Capacitor Banks, 102A, 480V, Three-phase, 85 kVAR, Protected, Neon red blown-fuse indicating lights, Three slottedblade-type fuses, C1 Frame
Product Name
Eaton LV Unipak capacitor bank
Catalog Number
8543PMURF
UPC
782116058884
Product Length/Depth
10.6 in
Product Height
26.3 in
Product Width
12.1 in
Product Weight
67.6 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
102A
Fuse type
Three slottedblade type fuses with 200,000 ampere interrupting capacity
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
Indicators
Red, neon blown-fuse indicating lights are protected by transparent weatherproof guard
Protection
Three fuses, three lights
Rating
85 kVAR
Eaton Specification Sheet - 8543PMURF
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: The UNIPAK architecture delivers a compact, modular low voltage fixed capacitor bank rated for 85 kVAR at 480 V with a 102 A amperage rating, in a C1 frame. This enables efficient power factor correction for motors and pumps, reducing utility penalties and line losses in demanding manufacturing environments. Application: suitable for plant-wide energy programs where space and reliability are critical, such as automotive, packaging, and process facilities. Feature → Business Impact → Application: Three-slotted blade fuses with 200,000 AIC provide high fault-current protection; neon blown-fuse indicating lights, guarded against weather, ensure quick fault diagnosis. Benefit: minimizes unscheduled downtime and promotes safer maintenance windows. Application: ideal for outdoor and indoor installations where rapid fault visibility matters.
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FAQs
The 8543PMURF is a three-phase, 480 V device with a 102 A rating and 85 kVAR output, housed in a C1 frame with NEMA 1/NEMA 3R enclosures. It uses three slottedblade fuses with 200 kAIC and neon indicator lights. Plan for space to accommodate the 12.1 in width, 26.3 in height, and 10.6 in depth, and ensure proper clearance for ventilation and wiring access.
With an 85 kVAR rating at 480 V, the unit provides substantial reactive power compensation for motors and other inductive loads, improving power factor and reducing utility demand charges. The 240 V kVAR rating note translates to 208 V operation by multiplying by 0.75, helping engineers estimate performance in related supply conditions. This supports energy efficiency goals in manufacturing and processing facilities.
Yes. The unit features an enclosure rated for both indoor and outdoor use (NEMA 1, NEMA 3R) and a 14-gauge steel body finished with a durable powder coat. This combination offers weather resistance and mechanical protection, enabling reliable operation in factory floors, exterior equipment pads, and distribution panels with modest environmental exposure.
The 8543PMURF is UL Listed and CSA Certified, signaling compliance with recognized safety and performance standards for electrical equipment. These certifications help procurement and facilities teams meet regulatory requirements, support warranty validity, and reduce qualification time during audits or inspections for electrical infrastructure upgrades.
Warranty is per Eaton policy SP 25-000, offering one year from installation or 18 months from shipment, whichever occurs first. Maintenance considerations include monitoring the three neon indicator lights for quick fault detection, inspecting fuses and wiring during routine service, and reviewing the catalog note for kVAR adjustments when operating near 208 V supply conditions.