Eaton 5543PMURN LV Unipak capacitor bank - UL Listed
Part Number: 5543PMURN
Quick Summary
Eaton LV Unipak capacitor bank improves power factor and voltage stability in low-voltage systems. Engineers often battle voltage sags and wasted energy when selecting a reliable, scalable PF correction solution. Certifications include UL Listed and CSA Certified, ensuring safe operation and regulatory compliance in distributed LV networks. This UNIPAK bank features a rugged 14-gauge steel enclosure with a durable powder coat, a compact B1 frame, and a three-phase 480 V rating, delivering long-term performance in demanding environments. Designed for compatibility with standard LV electrical rooms and retrofit projects, it supports faster deployment, predictable maintenance, and tangible business value through reduced energy costs and improved system reliability.
Product Information
Extended Description
5543PMURN Eaton: Eaton LV Unipak capacitor bank, UNIPAK, Low Voltage Fixed Capacitor Banks, 66A, 480V, Three-phase, 55 kVAR, Unprotected, Non-fused, 14 ga. steel finished with durable powder coat finish, B1 Frame
Product Name
Eaton LV Unipak capacitor bank
Catalog Number
5543PMURN
UPC
782116075935
Product Length/Depth
11.054 in
Product Height
25.3 in
Product Width
10.1 in
Product Weight
48 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
66A
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
B1
Protection
Non-fused
Rating
55 kVAR
66 A, 55 kVAR at 480 V three-phase capability enables precise reactive power compensation, reducing kVA demand and improving overall system efficiency. This translates to measurable energy savings and lower utility costs for manufacturing lines, pumps, and HVAC loads. Ideal applications include LV distribution panels, motor control centers, and process equipment where dependable PF correction yields rapid performance gains. The enclosure delivers durability with NEMA 1 and NEMA 3R ratings, a 14-gauge steel construction, and a powder-coated finish, ensuring dust and moisture resistance for indoor and outdoor installations. By protecting critical components from environmental exposure, maintenance interventions are shortened and service life is extended. The non-fused, unprotected design reduces component count and simplifies retrofits, lowering initial cost and commissioning time. Its compact B1 frame supports easy integration into existing spaces, enabling retrofit projects without major layout changes. A one-year warranty from installation or 18 months from shipment adds financial protection and reduces total cost of ownership, complemented by CSA Certified and UL Listed compliance for regulatory assurance. Catalog notes help technicians estimate 208 V kVAR from 240 V ratings, aiding accurate system planning and reducing the risk of under- or over-sizing the bank.
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FAQs
Install the 5543PMURN in a suitable LV distribution panel or motor control center with a 480 V three-phase supply. Verify the enclosure is mounted in a clean, dry location and that wiring adheres to local codes. Connect the 66 A rated bank to the three phases and ground, ensuring proper voltage coordination and adequate clearance for heat dissipation. Use the 14 gauge steel, powder-coated enclosure to protect against dust and moisture, and confirm the non-fused configuration aligns with your maintenance plan.
Key specs include a 66 A amperage rating, 55 kVAR reactive power, 480 V three-phase operation, and an enclosure rated for NEMA 1 and NEMA 3R. The product is a UNIPAK fixed capacitor bank designed for low-voltage applications, with a frame size B1 and a weight around 48 lb. The unit is non-fused and includes CSA Certified and UL Listed safety certifications.
Yes. The enclosure supports NEMA 3R protection, which accommodates outdoor or semi-outdoor environments when properly installed with appropriate spacing and ventilation. The 14 gauge steel with durable powder coating further enhances corrosion resistance, making it suitable for plant exteriors or outdoor equipment spaces where weather exposure occurs.
The unit is UL Listed and CSA Certified, providing third-party safety and compliance validation. These certifications help ensure safe operation, meet procurement requirements, and reduce risk during audits or inspections. The warranties and documented reliability further support lifecycle planning for industrial power-factor correction equipment.
Maintenance is simplified by the non-fused, unprotected design, which reduces wiring complexity and fault points. The unit’s robust enclosure and warranty (one year from installation or 18 months from shipment) contribute to predictable maintenance cycles and lower total cost of ownership. By improving power factor, facilities can realize lower kVA demand, reduced energy costs, and better motor efficiency over time.