Eaton 6543PMURF LV Unipak capacitor bank - UL Listed
Part Number: 6543PMURF
Quick Summary
Eaton 6543PMURF LV Unipak capacitor bank is a three‑phase reactive power solution for industrial power factor correction. Facilities often endure rising demand charges and voltage fluctuations that impact uptime and energy cost. This unit carries UL Listed and CSA Certified markings, with rugged NEMA 1 and NEMA 3R enclosures and a durable 14 gauge steel powder-coated finish for demanding environments. Designed for scalable integration with existing UNIPAK configurations, its 65 kVAR rating at 480 V supports efficient, extendable power quality improvements across process lines and facilities, delivering measurable energy savings and reliability for plant operations.
Product Information
Extended Description
6543PMURF Eaton: Eaton LV Unipak capacitor bank, UNIPAK, Low Voltage Fixed Capacitor Banks, 78A, 480V, Three-phase, 65 kVAR, Protected, Neon red blown-fuse indicating lights, Three slottedblade-type fuses, C1 Frame
Product Name
Eaton LV Unipak capacitor bank
Catalog Number
6543PMURF
UPC
782116058846
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
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
65 kVAR
Eaton Specification Sheet - 6543PMURF
Selling Policy 25-000 - Distribution and Control Products and Services
65 kVAR rating at 480 V translates into meaningful reactive power correction, reducing utility penalties and easing transformer loading in high-demand facilities. In practice, electrical designers deploy it on motor-heavy production lines to reclaim energy and stabilize voltage on feeders, which translates to lower operating costs and improved equipment performance. The unit’s 78 A full-load current supports rapid response to voltage sags, helping motor starters and drives maintain setpoints and uptime. Three slottedblade fuses with 200,000 AIC provide robust short-circuit protection, while neon blown-fuse indicators offer quick diagnostics during routine maintenance and post-event checks. The rugged enclosure options—NEMA 1 for indoor panels and NEMA 3R for outdoor or damp environments—combine with a 14 gauge steel powder-coated finish to withstand factory conditions and weather exposure. With a C1 frame and UNIPAK compatibility, installation is streamlined in existing banks, reducing retrofit complexity and downtime. The product ships with clear protection features and indicator lights that simplify preventive maintenance, while the included warranty and catalog notes give engineers a clear lifecycle plan for long-term reliability. Together these factors contribute to lower total cost of ownership, predictable performance, and enhanced compliance in facility power quality programs.
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FAQs
Ensure correct mounting in a C1 frame enclosure and select the appropriate enclosure type (NEMA 1 for indoors or NEMA 3R for outdoor/damp locations). Connect the three-phase 480 V supply per Eaton wiring diagrams, and use the three slottedblade type fuses with 200,000 AIC. Verify that neon blown-fuse indicators are guarded and easily visible for quick status checks.
Three-phase operation at 480 V with a 65 kVAR rating and 78 A full-load current. The unit uses UNIPAK construction within a C1 frame, features three slottedblade fuses rated for 200,000 AIC, and includes red neon indicating lights protected by a weatherproof guard. Enclosures are available in NEMA 1 and NEMA 3R to match indoor and outdoor installation needs.
Yes. The 6543PMURF is built on the UNIPAK platform with a C1 frame, designed for seamless integration into Eaton UNIPAK capacitor bank configurations. If you’re upgrading or expanding, you can reference the catalog notes to scale kVAR appropriately when operating at 208 V (multiply the 240 V kVAR rating by 0.75).
The unit is UL Listed and CSA Certified, indicating compliance with widely recognized safety standards for electrical equipment. These certifications support regulatory acceptance in US and Canadian installations and help streamline panel integration and inspection processes for power quality projects.
Warranty follows Eaton Selling Policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. Routine maintenance centers on inspecting fuses and indicator lights, verifying enclosure seals for your installation environment, and ensuring the three-fuse protection and neon indicators remain clearly visible for quick fault detection.