Eaton 550TPHSR631W Switched Capacitor Bank - UL Listed 600V
Part Number: 550TPHSR631W
Quick Summary
Eaton LV AutoVAR 600 capacitor bank provides reactive power control for low-voltage motor drives and industrial loads. Facilities often struggle with voltage sags and energy waste caused by poor power factor. UL Listed and CSA Certified ensure regulatory compliance and safety, while the rugged NEMA 3R enclosure supports durable outdoor or harsh-environment use. Designed for low-voltage, three-phase systems, this solution helps reduce energy costs, extend motor life, and improve overall system reliability for demanding manufacturing, pumping, and processing applications. With a 550 kVAR rating, 11 x 50 kVAR steps, and heavy-duty capacitor cells, it is built for long-term industrial duty in floor-mounted installations.
Product Information
Extended Description
550TPHSR631W Eaton: AUTOVAR 600 Switched Capacitor Bank, 529A, 550 kVAR, 11 x 50 step, 600V 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
550TPHSR631W
UPC
786685992501
Product Length/Depth
29 in
Product Height
80 in
Product Width
41.3 in
Product Weight
1064 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
529A
Frequency rating
60 Hz
Options
Heavy duty capacitor cells, NEMA 3R enclosure
Phase
Three-phase
Voltage rating
600 V
Mounting
Floor
Used with
AUTOVAR 600
Application
Low voltage
Enclosure
NEMA 3R
Enclosure size
L
kVA rating
550 kVAR
Protection
Fuses
Step X kVAR
11 x 50 kVAR
Feature: 550 kVAR switched capacitor bank with 11 x 50 kVAR steps, rated 529 A at 600 V and 60 Hz. Business impact: precise reactive power control reduces utility penalties, minimizes line losses, and stabilizes voltage for steady operations. Application: ideal for three-phase low-voltage motor drives, conveyors, and pumps in manufacturing plants. Feature: Heavy-duty capacitor cells with fused protection. Business impact: improves reliability, contains faults to prevent cascading outages, and simplifies warranty-backed maintenance. Application: supports continuous uptime in demanding production environments. Feature: NEMA 3R floor-mount enclosure in L size. Business impact: rugged, weather-resistant housing enables flexible installation both indoors and outdoors, streamlining site integration. Application: suitable for space-constrained electrical rooms or outdoor equipment pads. Feature: Compatibility with AUTOVAR 600 family. Business impact: standardized components reduce spare-part inventories and simplify service planning. Application: ideal for facilities already using Eaton energy-management architectures. Feature: Regulatory compliance and safety features. Business impact: UL Listed and CSA Certified build investor confidence and ease procurement, while warranty support mitigates risk. Application: procurement and long-term maintenance planning in regulated industries. Feature: Core electrical specs. Business impact: 600 V, 60 Hz, three-phase operation ensures broad compatibility with low-voltage power systems, enabling scalable deployments. Application: industrial facilities seeking reliable, scalable capacitor-bank solutions.
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FAQs
Plan floor mounting in a sturdy location with access for maintenance. The unit measures 29 in depth by 80 in height by 41.3 in width and weighs 1064 lb, so allocate adequate floor space and a reinforced slab if installed outdoors or in high-traffic areas. Ensure proper clearance for fuse access and routine inspections in a protected, compliant environment.
Key specs include a 550 kVAR rating with 11 x 50 kVAR steps, 529 A current, 600 V voltage rating, 60 Hz frequency, three-phase configuration, and a floor-mounted arrangement inside a NEMA 3R enclosure. It uses fuses for protection and is designed for low-voltage applications using AUTOVAR 600 compatibility.
Yes. The 550TPHSR631W is designed for use with the AUTOVAR 600 family, enabling standardized integration with Eaton’s energy-management ecosystem. This compatibility simplifies installation, spare-parts planning, and ongoing maintenance while delivering cohesive control of reactive power across the system.
The unit is UL Listed and CSA Certified, indicating compliance with recognized safety and performance standards. These certifications facilitate regulatory approval, support contractor acceptance, and reduce procurement risk for facilities subject to electrical-safety requirements.
Eaton provides a warranty of one year from installation or 18 months from shipment, whichever occurs first. Regular maintenance should include fuse checks, enclosure access inspections, and periodic capacitor-cell health assessments to sustain reliability in demanding environments and minimize unplanned downtime.