Eaton 8543PMURN LV Unipak capacitor bank - UL Listed
Part Number: 8543PMURN
Quick Summary
Eaton LV Unipak capacitor bank provides reliable reactive power correction for industrial power systems. This unit addresses the pain of energy waste from poor power factor by delivering precise 85 kVAR at 480 V in a compact three-phase package. UL Listed and CSA Certified, with NEMA 1 and NEMA 3R enclosure options, it meets safety and environmental requirements for indoor and outdoor installations. The rugged 14 gauge steel frame with a durable powder coat supports long service life in demanding plant environments. Catalog sizing notes help engineers size replacements for 208 V systems, while the warranty and Eaton support policy provide procurement confidence.
Product Information
Extended Description
8543PMURN Eaton: Eaton LV Unipak capacitor bank, UNIPAK, Low Voltage Fixed Capacitor Banks, 102A, 480V, Three-phase, 85 kVAR, Unprotected, Non-fused, 14 ga. steel finished with durable powder coat finish, C1 Frame
Product Name
Eaton LV Unipak capacitor bank
Catalog Number
8543PMURN
UPC
782116075997
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
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
85 kVAR
Feature: 85 kVAR at 480 V with a 102 A rating delivers immediate power-factor correction for three-phase loads. Business Impact: reduces utility demand charges and stabilizes voltages across motors and drives, lowering operating costs. Application: ideal for 480 V, three-phase plant power systems employing heavy motor loads and variable-speed drives. Feature: NEMA 1 and NEMA 3R enclosure with a 14 gauge steel frame finished in a durable powder coat. Business Impact: provides indoor protection and outdoor resilience, reducing maintenance cycles and downtime. Application: suitable for both indoor equipment rooms and outdoor installations in harsh environments, aligning with industry standards for low voltage fixed capacitor banks. Feature: Non-fused protection and a C1 frame design that supports straightforward installation. Business Impact: simplifies wiring and enhances serviceability, reducing total installed cost. Application: fits standard control panels and can be integrated with existing low voltage switchgear in industrial facilities. Feature: Catalog note stating to multiply the 240 V kVAR by 0.75 for 208 V calculations. Business Impact: ensures correct capacitor sizing on mixed-voltage networks, preventing under- or over-correction. Application: essential when retrofitting facilities with 208 V distribution or mixed 240/208 V systems. Feature: UL Listed and CSA Certified with a one-year warranty (18 months from shipment, whichever occurs first). Business Impact: procurement confidence, regulatory compliance, and predictable maintenance budgeting. Application: ideal for regulated industries, plant owners, and MRO teams seeking proven, reliable three-phase capacitor banks.
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FAQs
Install the 8543PMURN as a three-phase, 480 V capacitor bank in the available switchgear space, ensuring proper clearance and wiring per Eaton’s installation sheet. Verify the 102 A rating matches the panel’s current capability and confirm the enclosure selection (NEMA 1 or NEMA 3R) for the intended indoor or outdoor site. Route conductors per local code and secure with standard hardware to minimize vibration and thermal issues.
The unit provides 85 kVAR at 480 V. For 208 V networks, use the catalog note: multiply the 240 V kVAR rating by 0.75 to estimate the kVAR value at 208 V. This helps prevent over- or under-correction when migrating from 240 V to 208 V distributions while maintaining effective power-factor correction.
Yes. The enclosure options include NEMA 3R for outdoor service, and the 14 gauge steel frame with a durable powder coat provides corrosion resistance and mechanical protection. For outdoor installations, select the NEMA 3R option and ensure proper drainage and environmental clearances to maintain performance over time.
The unit is UL Listed and CSA Certified, confirming electrical safety and compliance with industry standards. These certifications streamline regulatory approvals, supplier audits, and commissioning processes, reducing risk for regulated industries and facilitating faster procurement and installation milestones.
The product carries Eaton’s warranty policy: one year from installation or eighteen months from shipment, whichever comes first. Plan maintenance around expected capacitor bank life, monitor for thermal and electrical stresses, and schedule periodic inspections to verify enclosure integrity, connections, and performance against the 85 kVAR rating.