Eaton 543PMURN Unipak Capacitor Bank - UL Listed
Part Number: 543PMURN
Quick Summary
Eaton LV Unipak capacitor bank is a compact, three‑phase reactive power solution for 480 V systems in industrial and commercial facilities. When space is tight or downtime is costly, mis-sized or poorly installed capacitor banks can waste energy and drive operational costs. The unit carries CSA Certified and UL Listed marks and is housed in rugged NEMA 1/NEMA 3R enclosures, suited for indoor or outdoor service. Its 5 kVAR rating at 480 V and 6 A amperage support precise power factor correction, while the 14 gauge steel frame with a durable powder coat finish ensures long-term reliability. This combination delivers measurable efficiency gains and straightforward procurement for engineering teams.
Product Information
Extended Description
543PMURN Eaton: Eaton LV Unipak capacitor bank, UNIPAK, Low Voltage Fixed Capacitor Banks, 6A, 480V, Three-phase, 5 kVAR, Unprotected, Non-fused, 14 ga. steel finished with durable powder coat finish, A1 Frame
Product Name
Eaton LV Unipak capacitor bank
Catalog Number
543PMURN
UPC
782116075706
Product Length/Depth
5.254 in
Product Height
17.3 in
Product Width
8.5 in
Product Weight
19 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
CSA Certified UL Listed
Catalog Notes
Multiply the 240V kVAR rating by 0.75 to calculate the kVAR value at 208V.
Type
UNIPAK
Amperage Rating
6A
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
A1
Protection
Non-fused
Rating
5 kVAR
Feature: UNIPAK fixed capacitor bank design. Business Impact: minimizes installation footprint and cabinet intrusion while delivering reliable reactive power correction. Application: ideal for 480 V three-phase power systems in industrial facilities and commercial buildings. Feature: 5 kVAR rating at 480 V with 6 A current. Business Impact: effective power factor correction translates to lower utility charges and improved voltage profiles. Application: suitable for mid-size motors and compressors in manufacturing plants. Feature: Non-fused protection and simple wiring. Business Impact: reduces wiring complexity and mitigates nuisance trips, speeding up commissioning. Application: retrofit projects and new installs in LV distribution panels. Feature: NEMA 1 and NEMA 3R enclosures with 14 gauge steel powder coat. Business Impact: rugged, weather-resistant protection supports outdoor or harsh indoor environments with minimal maintenance. Application: outdoor equipment rooms and exposed indoor areas. Feature: Frame size A1 and Eaton warranty. Business Impact: predictable replacement and service planning, enhancing total cost of ownership. Application: asset-intensive facilities with long-term maintenance cycles. Feature: Catalog note for voltage conversions. Business Impact: provides a straightforward method to estimate kVAR at different voltages, improving front-end sizing accuracy. Application: engineering calculations when evaluating 208 V or 240 V systems in mixed-voltage sites.
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FAQs
The 543PMURN is designed for straightforward LV distribution panel integration. Mount the unit on a suitable base, connect to the 480 V three-phase bus, ensure correct phase alignment, and follow the non-fused protection recommendation. Verify enclosure suitability (NEMA 1 or NEMA 3R) for indoor or outdoor locations and conform to local electrical codes during commissioning.
The capacitor bank is rated at 5 kVAR for 480 V operation. For 208 V arrangements, the catalog notes suggest multiplying the 240 V kVAR value by 0.75 to estimate the kVAR at 208 V. This provides a practical sizing rule of thumb for preliminary design and quick feasibility checks during project scoping.
Yes. The unit features NEMA 1 and NEMA 3R enclosure options and uses a 14 gauge steel frame with a durable powder coat finish, providing weather resistance and robust protection. This makes it appropriate for indoor equipment rooms or outdoor installations subject to environmental exposure, depending on the enclosure choice.
The 543PMURN is CSA Certified and UL Listed, confirming compliance with recognized safety standards. These certifications support regulatory approvals, supplier qualification, and reduced risk in audits, helping you meet industry and project-specific requirements for electrical equipment.
Eaton provides a warranty of one year from installation or eighteen months from shipment, whichever comes first. Maintenance is typically minimal due to the non-fused design and robust enclosure. Plan for periodic visual inspections and environmental protection verification to sustain performance over the asset’s life.