Eaton 7543PMURN LV Unipak capacitor bank - UL Listed
Part Number: 7543PMURN
Quick Summary
Eaton 7543PMURN LV Unipak capacitor bank is designed to deliver reliable reactive power management for industrial three‑phase power systems at 480 V. Facilities facing voltage distortion, motor stalling, and penalties from poor power factor can benefit from a fixed bank that delivers predictable, plug‑in reactive power correction. It carries UL Listed and CSA Certified approvals and comes in NEMA 1 and NEMA 3R enclosures, supporting indoor and outdoor installations under standard electrical codes. With 75 kVAR at 480 V and a compact C1 frame, it helps facilities reduce kVAR penalties, improve motor efficiency, and simplify procurement and maintenance when integrated with existing switchgear.
Product Information
Extended Description
7543PMURN Eaton: Eaton LV Unipak capacitor bank, UNIPAK, Low Voltage Fixed Capacitor Banks, 90A, 480V, Three-phase, 75 kVAR, Unprotected, Non-fused, 14 ga. steel finished with durable powder coat finish, C1 Frame
Product Name
Eaton LV Unipak capacitor bank
Catalog Number
7543PMURN
UPC
782116075973
Product Length/Depth
10.6 in
Product Height
26.3 in
Product Width
12.1 in
Product Weight
65 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
90A
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
75 kVAR
Feature → Business Impact → Application: 75 kVAR at 480 V with a 90 A rating reduces reactive power and improves power factor, delivering measurable energy cost savings and lower utility penalties for motor-driven loads in manufacturing lines and process equipment. This fixed UNIPAK design enables rapid deployment within existing switchgear footprints, accelerating project timelines and reducing commissioning costs for new lines or capacity upgrades. Feature → Durable construction → longer service life → fewer unplanned outages: The 14 gauge steel enclosure with a durable powder coat finish resists corrosion and wear in harsh plant environments, minimizing maintenance and downtime for outdoor or humid applications. Feature → Enclosure versatility → installation flexibility → safer operations: NEMA 1 and NEMA 3R options support indoor panels and outdoor installations, simplifying procurement and expanding site compatibility across facilities. Feature → Non-fused protection → safer maintenance → simplified replacement: Non-fused protection reduces field wiring complexity and replacement time, improving serviceability and total cost of ownership. Feature → Compliance and support → risk reduction → regulatory alignment: UL Listed and CSA Certified ratings ensure regulatory compliance and easier audits, backed by Eaton’s warranty and support for long-term reliability. Catalog notes provide practical sizing guidance, enabling precise planning when operating at 208 V from a 240 V kVAR rating, aligning with common facility voltage profiles and upcoming equipment migrations.
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FAQs
This unit is a three-phase, 480 V fixed capacitor bank with a C1 frame designed to fit standard low-voltage switchgear footprints. It weighs 65 lb and measures 12.1 in wide, 10.6 in deep, and 26.3 in tall, with a 14 gauge steel, powder-coated enclosure suitable for indoor installations or outdoor use when paired with the NEMA 3R option. Verify panel clearances and mounting provisions in your enclosure to ensure straightforward integration and serviceability.
Expect significant reactive power reduction and improved power factor for motor‑driven loads, which translates to energy cost savings and reduced penalties from utilities. The 75 kVAR rating is specified for 480 V operation, with 90A current draw capacity, enabling effective correction across typical plant load profiles such as conveyors, pumps, and fans when deployed alongside existing equipment.
Yes, it is suitable for outdoor use when installed with the appropriate enclosure option. The unit includes NEMA 3R enclosure compatibility, in addition to indoor NEMA 1 options. The durable 14 gauge steel housing with powder coating provides protection against weather and corrosion, supporting reliable operation in varied environments.
The 7543PMURN is UL Listed and CSA Certified, aligning with broad electrical safety and performance standards. Eaton also provides a warranty per policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first, helping protect long‑term reliability and return on investment.
The capacitor bank delivers rapid energy savings through improved power factor and reduced penalties, contributing to a favorable ROI for facilities with significant motor loads. Maintenance is simplified by the non-fused protection design and modular UNIPAK construction; routine checks focus on enclosure integrity, connection tightness, and periodic inspection per your electrical maintenance plan.