Eaton 9043PMURN Unipak Capacitor Bank - CSA UL
Part Number: 9043PMURN
Quick Summary
Eaton LV Unipak capacitor bank is a compact, three-phase reactive power solution for industrial plants and commercial facilities. Many facilities struggle with poor power factor, voltage sags, and penalties from utilities. This unit carries CSA Certified and UL Listed marks, reinforcing safety and regulatory compliance, while its NEMA 1 and NEMA 3R enclosure options support versatile indoor and outdoor installations. As a low-voltage fixed capacitor bank, it helps facilities meet compliance while delivering reliable power factor correction, enabling lower energy costs and scalable performance in three-phase 480 V systems.
Product Information
Extended Description
9043PMURN Eaton: Eaton LV Unipak capacitor bank, UNIPAK, Low Voltage Fixed Capacitor Banks, 108A, 480V, Three-phase, 90 kVAR, Unprotected, Non-fused, 14 ga. steel finished with durable powder coat finish, C1 Frame
Product Name
Eaton LV Unipak capacitor bank
Catalog Number
9043PMURN
UPC
782116076000
Product Length/Depth
10.6 in
Product Height
26.3 in
Product Width
12.1 in
Product Weight
68 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
108A
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
90 kVAR
Eaton Specification Sheet - 9043PMURN
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: 90 kVAR rating at 480 V with a 108 A amperage rating. Business Impact: Enables effective power-factor correction for large motors and HVAC loads, reducing utility penalties and improving process stability. Application: Ideal for three-phase systems in manufacturing floors and distribution centers. Feature: Unipak design with 14 gauge steel and durable powder coat finish. Business Impact: Delivers robust protection against corrosion and environmental wear, extending service life and reducing maintenance costs. Application: Suitable for harsh industrial environments and long-term reliability in plant rooms. Feature: Enclosure options include NEMA 1 and NEMA 3R. Business Impact: Provides indoor protection and outdoor resilience, enabling flexible installation across facilities. Application: Outdoor equipment pads, switchgear rooms, and rugged manufacturing sites. Feature: Non-fused protection. Business Impact: Simplifies integration with existing protection schemes while reducing upfront component counts. Application: Systems with external fusing or stern protection requirements for reliability. Feature: Catalog note for 208 V operation by derating 240 V kVAR. Business Impact: Supports design optimization and accurate sizing for mixed-voltage infrastructures. Application: Engineering calculations for facilities with 208 V and 240 V platforms. Feature: Warranty and safety certifications. Business Impact: Increased procurement confidence and risk mitigation through insured support and compliance. Application: Corporate EHS reviews and maintenance planning.
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FAQs
Plan for proper mounting in a suitable enclosure (NEMA 1 indoors or NEMA 3R for outdoors), connect to three-phase 480 V feeders, and ensure external protection per site requirements. Verify derating rules for 208 V operation using the catalog note, and follow Eaton installation guidelines to maximize reliability and safety.
The unit provides 90 kVAR at 480 V with a 108 A rating in a three-phase configuration. Enclosure options include NEMA 1 and NEMA 3R, with a 14 gauge steel frame (C1) and non-fused protection. Catalog data notes also specify derating for 208 V operation from the 240 V kVAR rating.
Yes. The 90 kVAR, 480 V three-phase design supports PF correction for HVAC, pumps, and motor drives. By improving power factor, it reduces reactive current, lowers energy penalties, and stabilizes voltage for sensitive equipment—an especially valuable benefit in production lines and facility-wide power systems.
The unit is CSA Certified and UL Listed, signaling conformity with recognized safety and performance standards for industrial electrical equipment. These certifications aid procurement, regulatory compliance, and safer installation in diverse environments.
Anticipate periodic capacitor-bank inspections, especially for outdoor or harsh environments, to prevent capacitance drift and ballast failures. The anticipated ROI comes from improved power factor, reduced utility penalties, and extended equipment life, supported by Eaton’s warranty (one year from installation or 18 months from shipment, whichever comes first).