Eaton 900THFSR432 LV AutoVAR filter - 480V Switched 900 kvar
Part Number: 900THFSR432
Quick Summary
Eaton LV AutoVAR filter is a floor-mounted switched harmonic filter for 480 V industrial power systems. Engineers often struggle with harmonic distortion and energy waste in high-capacity facilities, and this solution targets those pain points with reliable performance. Built to meet common industry expectations, it supports CE-style compliance and rugged IP-rated enclosures for harsh environments. In operation, it enhances power quality and enables more predictable equipment life, while supporting downstream efficiency initiatives and easier integration into existing electrical rooms. For power factor correction and harmonics control in industrial automation and manufacturing settings, it stands out as a compelling choice.
Product Information
Extended Description
900THFSR432 Eaton: floor mounted, switched harmonic filter, 480V, 900 kvar, 4.7H
Product Name
Eaton LV AutoVAR filter
Catalog Number
900THFSR432
UPC
786685983684
Product Length/Depth
25 in
Product Height
78 in
Product Width
160.8 in
Product Weight
3600 lb
Voltage rating
480 V
Feature: High reactive power capacity of 900 kvar with a 4.7 H inductance. Benefit: effectively mitigates harmonic distortion and improves overall power factor, reducing conductor and transformer loading while lowering energy losses. Application: suited for large facilities and critical loads where steady voltage and reduced utility penalties are essential. Feature: Floor-mounted, 480 V rating and substantial footprint (25 in L, 78 in H, 160.8 in W) with a weight of 3600 lb. Benefit: stable installation in dedicated filter rooms or mechanical spaces, with predictable maintenance access and long service life. Application: industrial plants and data centers needing robust, serviceable power quality equipment. Feature: Catalog number 900THFSR432 and 900 kvar specification provide traceability and precise procurement. Benefit: simplifies asset tracking, spares planning, and uptime management. Application: procurement workflows and compliance-driven supply chains. Feature: 480 V electrical compatibility and switched harmonic filter design. Benefit: seamless integration into existing 480 V distributions with fast response to harmonic changes. Application: retrofits and new builds in manufacturing and process industries. Feature: Comprehensive dimensions and weight details (25 in L, 78 in H, 160.8 in W, 3600 lb). Benefit: enables accurate space planning and load distribution analysis. Application: facility design and retrofit projects. Feature: Access to Eaton specification sheets and technical datasheets. Benefit: ensures informed installation decisions and adherence to best practices. Application: engineering reviews and field troubleshooting.
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FAQs
Begin by locating a dedicated filter room or sturdy mechanical space with adequate ventilation and clearance. Ensure all disconnection devices are accessible and de-energized per local code. Run 480 V three-phase supplies to the filter’s input terminals, follow Eaton’s wiring diagram from the specification sheet, ground the enclosure properly, and secure the unit in its floor mounting base. After installation, verify insulation, perform a Phase sequence check, and commission using the Eaton documentation to confirm proper harmonic suppression and visual inspection.
The unit provides a 900 kvar reactive power rating and an inductance of approximately 4.7 H, enabling substantial mitigation of low-frequency and high-order harmonics on a 480 V system. This translates to improved voltage profiles, reduced neutral current, and better overall power factor. In large facilities with heavy motor loads, these specs support tighter voltage regulation and lower utility penalties tied to distortion levels.
Yes, the 900THFSR432 is designed for 3-phase 480 V systems with high harmonic content. It is best deployed in locations with concentrated non-linear loads, such as welding equipment, variable-speed drives, and large motor banks. Installations should prioritize accessible service clearances, a dedicated mounting footprint, and proximity to the most distorted feeders to maximize mitigation efficiency and minimize impedance in the supply path.
Certification and compliance considerations typically include CE marking for European access and IP-rated enclosure performance for industrial environments. It’s important to verify the specific certifications listed in Eaton’s official datasheet or local regulatory requirements. Always confirm regional UL listings or other national certifications where applicable and ensure installation adheres to local electrical codes.
ROI is driven by energy savings from improved power factor, reduced line losses, and potential utility rebates from harmonic mitigation. Maintenance is typically limited to periodic visual inspections, enclosure integrity checks, and routine wiring verifications per Eaton’s maintenance schedule. Keeping the filter clean and ensuring proper cooling will extend service life and help maintain consistent harmonic suppression over time.