Eaton 75432HMURFY LV Unipak - Detuned 75 kVAR 480V UL/CSA
Part Number: 75432HMURFY
Quick Summary
The Eaton LV Unipak capacitor bank is designed to filter harmonics and improve power factor in 480V, three-phase systems. Its detuned harmonic filter helps prevent resonance and reduces cycling stress on motors and drives, addressing costly power quality issues. Industry certifications such as CSA, UL 508A, UL 810, and IEEE Std. 18 validate safety, compatibility, and performance across industrial installations. With a 75 kVAR rating and a 90A current capacity, it scales to mid-size facilities while maintaining 60 Hz operation. In addition to reliability, the rugged Unipak design and comprehensive warranty deliver business value through lower maintenance costs and faster commissioning.
Product Information
Extended Description
75432HMURFY Eaton: Eaton LV Unipak capacitor bank, Fixed UNIPAK harmonic filter, Detuned, 75 kVAR, 480V, 90A, Three-phase, 60 Hz, 4.2 Harmonic tuning
Product Name
Eaton LV Unipak capacitor bank
Catalog Number
75432HMURFY
UPC
786685878591
Product Length/Depth
40 in
Product Height
42 in
Product Width
48 in
Product Weight
320 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. Plus 5 years on capacitor cells.
Certifications
CSA Std. C22.2 No. 190 UL 508A UL 810 IEEE Std. 18
Type
Detuned
Amperage Rating
90A
Frequency rating
60 Hz
Phase
Three-phase
Tuning
4.2H
Voltage rating
480 V
kVA rating
75 KVR
Detuned 4.2H tuning is a core feature of the 75432HMURFY, designed to target harmonic currents without impacting fundamental power. By selecting the correct inductance, the bank shifts problematic harmonics away from critical frequencies, reducing resonance risk and protecting upstream transformers, drives, and switchgear in 480 V three-phase networks. This approach minimizes equipment wear, lowers operational noise, and contributes to longer service intervals for power distribution components. The 75 kVAR rating provides scalable reactive power support across motor loads, reactors, and HVAC equipment, reducing feeder current and flattening voltage sag during peak demand. This improves overall power factor, lowers utility charges, and enhances the stability of sensitive equipment such as drives and programmable controllers. The detuned design ensures the solution remains compatible with common harmonic profiles in modern facilities. The 90A amperage rating aligns with typical mid-range feeders, simplifying integration into existing panels and bus ducts while enabling smoother commissioning and reduced risk of overloading. For retrofit projects, the unit fits cleanly without extensive rewiring or reconfiguration. Eaton’s Unipak enclosure emphasizes rugged construction and field serviceability, enabling straightforward mounting in control cabinets, switchgear bays, or standalone racks. The large footprint accommodates multiple cells while maintaining accessible wiring ports and connection lugs. Dimensions of 40 in L, 48 in W, and 42 in H, with a 320 lb weight, help install planners allocate practical space and clearances. Certifications from CSA, UL 508A, UL 810, and IEEE Std. 18 validate safety, electrical integrity, and performance for industrial environments. The warranty structure adds confidence: one year from installation (or 18 months from shipment) plus five years on capacitor cells, reducing maintenance risk and total cost of ownership.
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FAQs
The unit is designed for 480 V three-phase power and should be mounted in a suitable enclosure or panel with proper clearance. Ensure correct wiring per Eaton installation diagrams, verify 40 in L, 48 in W, 42 in H dimensions, and secure the 320 lb assembly with appropriate mechanical supports and lugs. Follow lockout/tagout procedures and confirm proper grounding and coordination with upstream protective devices.
Key specs include a 75 kVAR rating, 90A amperage, 60 Hz frequency, three-phase configuration, and 4.2H tuning. The capacitor bank operates at 480 V and is intended to detune harmonics to reduce resonance. It carries CSA and UL certifications and is supported by Eaton’s warranty and service documentation.
Yes, for facilities with moderate loads and harmonic concerns on 480 V three-phase feeders. The detuned 4.2H design targets common harmonic profiles, delivering improved power factor and reduced current in feeders. Consider facility load profiles, existing PF, and harmonic studies when planning integration.
The unit carries CSA Std. C22.2 No. 190, UL 508A, UL 810, and IEEE Std. 18 certifications, which validate electrical safety, construction quality, and performance for industrial settings. These standards help ensure vendor reliability, regulatory compliance, and smoother approvals during audits and audits across facilities.
Warranty includes one year from installation (or 18 months from shipment) plus five years on capacitor cells. Routine maintenance focuses on visual inspections, connection integrity, and thermal performance during commissioning. This coverage helps reduce total cost of ownership and supports long-term reliability.