Eaton LV AutoVAR filter 900THFSR432WY - UL 508A
Part Number: 900THFSR432WY
Quick Summary
Eaton LV AutoVAR filter is a three-phase power conditioning device for industrial power quality at 480 V. It helps address voltage sags and reactive power penalties that can erode uptime and drive up operating costs. Certified to UL 508A, CSA Std. C22.2 No. 190, UL 810, and IEEE Std. 18, it emphasizes safety, reliability, and regulatory compliance. Floor-mounted and designed for rugged environments, it provides scalable reactive power compensation with 9 x 100 kvar steps. With a 60 Hz rating and a NEMA 3R enclosure, it supports dependable, energy-efficient operation across demanding industrial applications.
Product Information
Extended Description
900THFSR432WY Eaton: Eaton floor mounted, 480V, 900 kvar, 60Hz, 4.2H, Nema 3R
Product Name
Eaton LV AutoVAR filter
Catalog Number
900THFSR432WY
UPC
786680190452
Product Length/Depth
172.8 in
Product Height
80 in
Product Width
25 in
Product Weight
3700 lb
Certifications
UL 508A CSA Std. C22.2 No. 190 UL 810 IEEE Std. 18
Frequency rating
60 Hz
Mounting
Floor
Phase
Three-phase
Tuning
4.2H
Voltage rating
480 V
Enclosure
NEMA 3R
Enclosure size
KK + KK
Rating
900
Step X kVAR
9 x 100 kVAR
900 kvar capacity with 9 x 100 kvar steps enables precise, scalable reactive power compensation to match load swings typical in heavy industries. The business impact is a stabilized power factor, reduced utility charges, and less transformer stress, which extend equipment life and lower operating costs. This solution is well-suited for large manufacturing lines where motor starts and load variations are common. The tuning option of 4.2H supports fine-grained PF correction, delivering faster payback and minimizing overshoot during sudden accelerations. Floor-mount design and a rugged NEMA 3R enclosure allow straightforward installation in busy plant environments while providing dust and moisture protection. The system is rated for 480 V, 60 Hz, three-phase operation, enabling seamless integration with existing electrical infrastructure. UL 508A, CSA Std. C22.2 No. 190, UL 810, and IEEE Std. 18 certifications ensure compliance with industry safety and performance standards, reducing risk during audits and commissioning. Compatibility with standard AutoVAR components from Eaton supports streamlined maintenance and spare-part availability, lowering lifecycle costs. Overall, the solution offers predictable energy management, improved drive reliability, and a foundation for scalable power quality upgrades in facilities ranging from fabrication to packaging.
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FAQs
Plan for a floor-mounted footprint measuring up to 172.8 in in length, 80 in in height, and 25 in in width. Ensure a 480 V three-phase service with a clean, dry environment compatible with a NEMA 3R enclosure. Verify space for 9 x 100 kvar step modules and allowance for headroom for maintenance access. Adhere to UL 508A and CSA requirements during commissioning and use proper locking hardware and safe-clearances around the cabinet.
Key specs include 480 V voltage rating, 60 Hz frequency rating, three-phase configuration, tuning at 4.2H, and a reactive power capacity of 900 kvar comprising 9 x 100 kvar steps. The enclosure is NEMA 3R for rugged environments, with floor mounting suitable for permanent plant installations. These specs support stable PF correction and protection of motors and transformers in demanding industrial settings.
The 900THFSR432WY is designed as a floor-mounted AutoVAR solution compatible with Eaton’s voltage and reactive power control ecosystem. It integrates with standard 480 V three-phase electrical distributions and uses modular 100 kvar steps for scalable expansion. For non-Eaton systems, verify voltage, section ratings, and controller interfaces to ensure proper coordination and avoid conflicts with other PF correction equipment.
Certifications include UL 508A for industrial control panels, CSA Std. C22.2 No. 190 for safety in North America, UL 810 for electrical equipment enclosures, and IEEE Std. 18 related to reactive power compensation reliability. These standards reassure electrical teams during design reviews, support regulatory compliance, and reduce risk during installation and audits in sectors like manufacturing, food processing, and data centers.
Maintenance focuses on routine cabinet inspections, connection integrity, and verifying kvar stepping modules. The ROI comes from improved power factor, reduced utility penalties, extended motor life, and lower transformer losses. With 9 x 100 kvar steps delivering scalable correction, plants can tune performance to actual load, enhancing energy efficiency and uptime without large capital expansion.