Eaton 900TPHSR431MW Switched Capacitor Bank - UL Listed
Part Number: 900TPHSR431MW
Quick Summary
Eaton LV AutoVAR 600 capacitor bank provides reactive power compensation for low-voltage, three-phase facilities. Facilities often struggle with voltage sags, wasted energy, and penalties when capacitor banks are mis-sized or poorly protected. UL Listed and CSA Certified marks, along with a rugged NEMA 3R enclosure, ensure safety and compliance in demanding plant environments. The floor-mount design is compatible with AUTOVAR 600, enabling fast installation and reliable power factor correction. This combination helps engineering teams meet energy performance targets while maintaining safety and ease of maintenance, delivering tangible cost savings and extended equipment life. By reducing reactive losses, users also improve grid reliability and utility credit optimization.
Product Information
Extended Description
900TPHSR431MW Eaton: AUTOVAR 600 Switched Capacitor Bank, 1083A, 900 kVAR, 9 x 100 step, 480V rating, 60 Hz, Three-phase, Heavy-duty capacitor cells, Floor-mount, KK sized NEMA 3R enclosure, Fused, Low voltage applications, Main Breaker
Product Name
Eaton LV AutoVAR 600 capacitor bank
Catalog Number
900TPHSR431MW
UPC
786689282257
Product Length/Depth
29 in
Product Height
80 in
Product Width
80.4 in
Product Weight
1902 lb
Certifications
UL Listed CSA Certified
Type
Switched Capacitor Bank
Amperage Rating
1083A
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
KK
kVA rating
900 kVAR
Protection
Fuses
Step X kVAR
9 x 100 kVAR
900 kVAR capacity with 1083 A rating is realized as 9 x 100 kVAR steps at 480 V and 60 Hz. Business impact: this stepwise approach provides precise reactive power control, enabling near-constant voltage and improved power factor across load transients. Application: suitable for mid- to large-load centers in manufacturing, data centers, and heavy industry where voltage stability is critical. Heavy-duty capacitor cells in a floor-mounted NEMA 3R enclosure offer rugged performance and safe service access. Business impact: durable construction reduces unscheduled downtime in harsh environments and simplifies maintenance. Application: outdoor installations or manufacturing floors requiring weather resistance and protective enclosure. Fused protection and a main breaker provide isolation and fault protection, enhancing system reliability. Business impact: minimizes fault propagation and protects downstream equipment, potentially lowering maintenance costs. Application: critical power systems and process lines with strict uptime requirements. Designed to work with AUTOVAR 600, this capacitor bank integrates with Eaton's control platform for coordinated switching and monitoring. Business impact: smoother integration reduces installation time and improves visibility into reactive power usage. Application: facilities pursuing energy efficiency programs or requiring centralized control. UL Listed and CSA Certified marks confirm compliance with safety and quality standards, while the NEMA 3R enclosure and floor mounting satisfy facility codes. Business impact: supports regulatory audits, ensures installer confidence, and accelerates project approvals. Application: electrical rooms, outdoor sites, and utility-interactive installations.
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FAQs
This floor-mounted system uses a KK-sized NEMA 3R enclosure and requires adequate floor space for servicing, proper ventilation, and clear access to the main breaker and fuses. Electrical room or outdoor location must support 480 V three-phase power and allow safe routing of feeders and control wiring to the AUTOVAR 600 interface. Follow manufacturer installation manuals for wiring diagrams and clearances.
The nine 100 kVAR steps provide granular reactive power control, enabling precise voltage regulation as load varies. This staged approach reduces voltage drift, improves power factor, and minimizes penalties from utility demand charges. It also allows phased switching to extend capacitor life and reduce inrush-related stresses during switching events.
Yes. The 900TPHSR431MW is designed to work with AUTOVAR 600, ensuring coordinated control of reactive power and seamless integration into Eaton’s energy management ecosystem. Compatibility simplifies commissioning, reduces integration risk, and provides centralized monitoring and control for improved system visibility and performance.
UL Listed and CSA Certified marks indicate adherence to recognized safety and quality standards, easing regulatory audits and supplier qualification. These certifications, combined with the NEMA 3R enclosure, support safe operation in industrial environments and help meet project specifications and commissioning requirements for electrical installations.
Regular inspections of fuse protection, enclosure integrity, and capacitor cell condition are recommended to maintain performance. The 900TPHSR431MW aims to reduce energy costs via improved PF and reduced peak demand, offering potential payback that depends on utility rates, load profile, and maintenance practices. Plan for periodic testing and preventive maintenance to optimize ROI.