Eaton 900THFSR432MWY LV AutoVAR filter - UL Listed CSA
Part Number: 900THFSR432MWY
Quick Summary
An Eaton LV AutoVAR filter autonomously balances reactive power to improve power factor for heavy industrial facilities and large manufacturing campuses. Fluctuating PF often triggers utility penalties, motor overheating, and wasted energy, complicating maintenance and reducing overall equipment reliability. UL Listed and CSA Certified, the solution uses a rugged NEMA 3R enclosure with powder-coated carbon steel for outdoor and demanding indoor environments. Designed for floor-mounted, three-phase 480 V 60 Hz systems, it offers scalable VAR control and built-in protection to simplify installation and deliver predictable energy savings. This combination supports compliance programs and helps you meet utility requirements without sacrificing uptime.
Product Information
Extended Description
900THFSR432MWY Eaton: Eaton AUTOVAR Filter, Automatic Capacitor Banks, 4.2 Detuned Reactors, 480V, 900 kVAR, Floor-mounted, 9 x 100, KK+KK Frame, NEMA 3R, Main Breaker
Product Name
Eaton LV AutoVAR filter
Catalog Number
900THFSR432MWY
UPC
786689282165
Product Length/Depth
180 in
Product Height
86 in
Product Width
38 in
Product Weight
3900 lb
Certifications
UL Listed CSA Certified
Type
AUTOVAR Filter
Accessories
molded-case circuit breaker rated 65 kAIC
Frequency rating
60 Hz
Mounting
Floor
Phase
Three-phase
Product Category
Switched Capacitor Banks
Tuning
4.2H
Voltage rating
480 V
Enclosure
NEMA 3R
Enclosure material
Powder coated carbon steel
Enclosure size
KK + KK
Rating
900 kVAR
Step X kVAR
9 x 100 kVAR
The LV AutoVAR filter integrates automatic capacitor banks to continuously balance reactive power, delivering a tangible business impact by reducing reactive current, lowering energy costs, and stabilizing voltage on mid- to large-scale facilities. In practice, this means smoother motor runtimes, fewer voltage dips, and a lower risk of utility penalties in high-demand periods. The 900 kVAR capacity, arranged as 9 x 100 kVAR steps, provides scalable VAR management that can adapt as loads grow or shift across manufacturing lines and processing equipment. With 4.2 H tuning and detuned reactors, the system mitigates harmonic distortion, improving overall power quality and protecting sensitive drives and PLCs. Installation benefits include a floor-mounted KK+KK frame that fits standard industrial layouts and supports straightforward retrofits in existing plants. The enclosure, made from powder-coated carbon steel and rated NEMA 3R, offers rugged durability and environmental protection for indoor and outdoor service. A built-in main breaker plus a molded-case breaker rated 65 kAIC simplifies maintenance, reduces wiring complexity, and supports fast fault isolation. The unit’s dimensions and weight—180 in long, 86 in high, 38 in wide, and about 3900 lb—provide room for future expansion without demanding complete system redesign. In short, this AutoVAR filter delivers reliable PF correction, improved energy efficiency, and a clear path to faster return on investment in demanding industrial environments.
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FAQs
This unit is designed for floor-mounted use in three-phase 480 V, 60 Hz environments. Its KK+KK frame and NEMA 3R enclosure simplify retrofits and new installations alike, fitting easily into established plant layouts. Ensure clear access for service and adequate space around the enclosure for cooling and maintenance. The integrated main breaker reduces wiring and component count during installation, speeding up commissioning and startup.
The 900 kVAR rating with 9 x 100 kVAR steps provides scalable reactive power compensation, reducing wasted energy and lowering demand charges. By keeping voltage stable under peak motor starts and drive transients, it protects equipment and improves overall efficiency. The 4.2H tuning with detuned reactors mitigates harmonic distortion, supporting cleaner power quality for sensitive drives and PLCs.
Industries with heavy motor loads, such as metal fabrication, chemical processing, pulp and paper, plastics, and large data centers, benefit significantly. Any facility with high and variable motor starting currents or drives can see improved power factor, reduced utility penalties, and better voltage regulation, translating to lower maintenance costs and longer equipment life.
The filter carries UL Listed and CSA Certified marks, indicating compliance with widely recognized electrical safety standards. It is housed in a rugged NEMA 3R enclosure with a powder-coated carbon steel exterior, suitable for both indoor and outdoor environments. The three-phase system compatibility and floor-mount design further support compliant and reliable installation in industrial settings.
Maintenance focuses on periodic electrical checks, breaker testing, and visual inspection of the powder-coated enclosure for corrosion or damage. The integrated main breaker simplifies fault isolation, reducing downtime during servicing. ROI is driven by energy savings from reduced reactive power, improved motor efficiency, and potential penalties avoidance, with the system sized to accommodate future load growth (9 x 100 kVAR steps).