Eaton 300TPCSR431M Capacitor Bank - UL 508A/UL 810 Certified
Part Number: 300TPCSR431M
Quick Summary
The Eaton 300TPCSR431M is a three-phase capacitor bank for power-factor correction in industrial facilities. It helps reduce electricity charges and voltage fluctuations caused by lagging power factor, protecting equipment and lowering energy waste. Certified to UL 508A, UL 810 and IEEE 18 standards, it supports safe, compliant installation in demanding manufacturing environments. Designed for floor-mounted integration, it delivers scalable reactive power support and predictable performance for motors, drives, and large loads. By combining AutoVAR control with rugged construction, it offers reliable power quality across changing load profiles, reducing maintenance surprises and enhancing ROI.
Product Information
Extended Description
300TPCSR431M Eaton: Eaton floor mounted, switched capacitor bank, 480V, 300 kvar w/600
Product Name
Eaton LV AutoVAR 600 capacitor bank
Catalog Number
300TPCSR431M
UPC
786685147222
Product Length/Depth
26 in
Product Height
78 in
Product Width
38.5 in
Product Weight
789 lb
Certifications
UL 508A CSA Std. C22.2 No. 190 UL 810 IEEE Std. 18
Type
AutoVAR
Phase
Three-phase
Feature: AutoVAR automatic capacitor control for dynamic PF correction. Business Impact: Maintains optimal power factor with minimal manual intervention, reducing reactive power costs and stabilizing voltage under fluctuating loads. Application: Suitable for motors and drives in manufacturing lines and data centers seeking energy efficiency. Feature: 480V three-phase operation with 300 kvar rating. Business Impact: Supports large motor loads and process equipment, delivering scalable reactive support and improved system efficiency. Application: Heavy industry facilities and high-demand manufacturing plants. Feature: Floor-mounted, rugged enclosure (26 in L x 38.5 in W x 78 in H; 789 lb). Business Impact: Easier retrofit and installation in existing spaces with predictable service life, lowering commissioning time and installation risk. Application: Plant floors and mechanical rooms with limited mounting options. Feature: Comprehensive certifications (UL 508A, UL 810, CSA, IEEE 18). Business Impact: Enhances compliance posture, reduces validation costs, and supports regulatory acceptance in critical environments. Application: Industrial facilities following strict electrical standards. Feature: Long-term reliability and performance for power quality. Business Impact: Improves voltage stability, reduces equipment stress, and delivers a faster ROI through energy savings. Application: Motors, drives, and large inductive loads across manufacturing and data center settings.
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FAQs
The 300TPCSR431M is designed for 480V three-phase distribution and floor-mounted installations. Ensure adequate clearance, ventilation, and access to the cabinet for wiring and maintenance. Verify compatible switchgear and feeders align with the enclosure dimensions (approximately 26 in L x 38.5 in W x 78 in H) and its 789 lb weight. Refer to the Eaton datasheet for wiring diagrams and field guidance.
This unit provides 300 kvar of reactive power support. AutoVAR actively adjusts capacitor stages to maintain target power factor as load varies, minimizing reactive power and stabilizing voltage. This reduces utility penalties and motor wear, delivering steady performance for dynamic industrial loads such as conveyors, presses, and pumps.
Ideal for manufacturing facilities, process plants, data centers, and any site with large motor loads and fluctuating demand. The 480V three-phase configuration supports industrial equipment sets, improving power quality and reducing energy costs across sectors like metals, plastics, and automotive assembly lines.
The unit complies with UL 508A and UL 810, and is certified to CSA standards and IEEE 18. These certifications support safe installation, regulatory alignment, and reliable performance in demanding industrial environments.
ROI depends on facility-specific load, energy costs, and PF penalties, but the AutoVAR approach typically yields faster payback through reduced reactive power charges and improved efficiency. Maintenance is minimal and mostly preventive: inspect connections, verify enclosure integrity, and follow Eaton’s datasheet guidelines to maintain performance without batteries or consumables.