Eaton 250TPHSR431W Switched Capacitor Bank - UL Listed
Part Number: 250TPHSR431W
Quick Summary
Eaton 250TPHSR431W Switched Capacitor Bank improves power factor in low-voltage three-phase systems. Owners and integrators face voltage sags, excessive current, and costly penalties when reactive power isn’t managed. This unit carries UL Listed and CSA Certified markings, with a rugged NEMA 3R floor enclosure and fused protection suitable for industrial environments. Designed to work with AUTOVAR 600, it scales from mid-size to expanding facilities, delivering predictable energy savings and improved grid stability. By combining heavy-duty capacitor cells with precise step control (5 × 50 kVAR), it reduces demand charges and extends equipment life while simplifying installation and maintenance. The result is more reliable power quality with fewer operational disruptions.
Product Information
Extended Description
250TPHSR431W Eaton: AUTOVAR 600 Switched Capacitor Bank, 300A, 250 kVAR, 5 x 50 step, 480V rating, 60 Hz, Three-phase, Heavy-duty capacitor cells, Floor-mount, L sized NEMA 3R enclosure, Fused, Low voltage applications
Product Name
Eaton LV AutoVAR 600 capacitor bank
Catalog Number
250TPHSR431W
UPC
786685992693
Product Length/Depth
29 in
Product Height
80 in
Product Width
41.3 in
Product Weight
710 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
Type
Switched Capacitor Bank
Amperage Rating
300 A
Frequency rating
60 Hz
Options
Heavy duty capacitor cells, NEMA 3R enclosure
Phase
Three-phase
Voltage rating
480 V
Mounting
Floor
Used with
AUTOVAR 600
Application
Low voltage
Enclosure
NEMA 3R
Enclosure size
L
kVA rating
250 kVAR
Protection
Fuses
Step X kVAR
5 x 50 kVAR
Switched capacitor bank architecture with five 50 kVAR steps delivers granular reactive power correction, enabling tight power-factor control for load swings. Business impact: This precise stepping minimizes overcorrection, reduces feeder currents, and lowers utility demand charges across the billing cycle. Application: Designed for low-voltage three-phase 480 V systems at 60 Hz, it pairs with AUTOVAR 600 for streamlined control. Amperage rating of 300 A and 250 kVAR capacity handle demanding motor loads and peak current events. Business impact: Enables larger facilities to achieve target power factor with fewer modules and simpler sizing. Application: Suitable for mid-to-large manufacturing lines, mining equipment, and process plants relying on inductive loads. Floor mounting in a rugged NEMA 3R enclosure with heavy-duty capacitor cells. Business impact: Provides durable reliability and easy access for maintenance in busy production areas. Application: Indoor or outdoor installations in demanding industrial spaces. Fused protection and compliance markings (UL Listed, CSA Certified) ensure safe operation and regulatory alignment. Business impact: Reduces maintenance risk, protects personnel, and supports audits. Application: Corporate and contractor standards require documented safety and energy-management performance. AUTOVAR 600 compatibility with 250TPHSR431W enables scalable low-voltage power factor correction. Business impact: Facilitates retrofit or expansion with minimal downtime and predictable energy savings. Application: Plant-wide PF optimization across multiple lines with 480 V distribution. Dimensions and weight provide installation planning: floor-mount, 29 in L, 80 in H, 41.3 in W, 710 lb. Business impact: Stable footprint supports reliable servicing and simplifies facility planning. Application: Suitable for new builds and retrofit projects in demanding production environments.
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FAQs
Installation should begin with a floor-mounted, 48-inch wide footprint in a secure area. Connect to a 480 V three-phase 60 Hz supply, configure the AUTOVAR 600 controller for automatic stepping (5 × 50 kVAR), and ensure fused protection is in place per local codes. Use UL CSA guidelines and verify NEMA 3R enclosure airflow for thermal management. A qualified electrician should complete wiring, labeling, and commissioning tests to confirm PF improvement and system stability.
The unit provides 250 kVAR reactive power with a 300 A amperage rating, configured for 480 V at 60 Hz in a three-phase setup. It features five steps of 50 kVAR (5 × 50 kVAR) for granular correction, a NEMA 3R floor enclosure, and fused protection. Compatible with AUTOVAR 600 control, this capacitor bank targets low-voltage power-factor correction in industrial facilities.
Yes. It is designed for low-voltage, three-phase systems operating at 480 V and 60 Hz, common in manufacturing, processing, and material handling environments. The 250 kVAR capacity and 300 A rating support mid-to-large facilities with significant inductive loads. The NEMA 3R enclosure and fused protection ensure reliable operation in challenging indoor or semi-exposed settings.
The 250TPHSR431W carries UL Listed and CSA Certified markings, signaling compliance with broad electrical safety standards and regulatory requirements. These certifications reduce audit risk, support product traceability, and facilitate code-based acceptance in utilities and contractors. The NEMA 3R enclosure further ensures suitable protection in industrial environments.
Expected ROI arises from reduced energy costs due to improved power factor, lower demand charges, and extended motor and electrical equipment life. Maintenance is minimized by fused protection and heavy-duty capacitor cells, with a warranty of one year from installation or 18 months from shipment. Regular inspection of connections and enclosure integrity supports long-term reliability.