Eaton 350TPHSR631 Switched Capacitor Bank - UL Listed
Part Number: 350TPHSR631
Quick Summary
350TPHSR631 is a switched capacitor bank for low-voltage, three-phase power factor correction. Many facilities struggle with utility penalties and energy waste from poor power factor. UL Listed and CSA Certified products ensure compliance and safe operation in harsh industrial environments. This unit, used with AUTOVAR 600 in a floor-mounted NEMA 1 enclosure, delivers reliable PF correction with measurable business value. Designed for floor mounting in an L-sized enclosure, it provides robust protection with fused protection and clear maintenance access, reducing downtime. This solution features heavy-duty capacitor cells with seven 50 kVAR steps, enabling scalable PF correction as load profiles change.
Product Information
Extended Description
350TPHSR631 Eaton: AUTOVAR 600 Switched Capacitor Bank, 336A, 350 kVAR, 7 x 50 step, 600V rating, 60 Hz, Three-phase, Heavy-duty capacitor cells, Floor-mount, L sized NEMA 1 enclosure, Fused, Low voltage applications
Product Name
Eaton LV AutoVAR 600 capacitor bank
Catalog Number
350TPHSR631
UPC
786685992105
Product Length/Depth
27 in
Product Height
80 in
Product Width
41.3 in
Product Weight
818 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
336A
Frequency rating
60 Hz
Options
Heavy duty capacitor cells
Phase
Three-phase
Voltage rating
600 V
Mounting
Floor
Used with
AUTOVAR 600
Application
Low voltage
Enclosure
NEMA 1
Enclosure size
L
kVA rating
350 kVAR
Protection
Fuses
Step X kVAR
7 x 50 kVAR
Eaton Specification Sheet - 350TPHSR631
Selling Policy 25-000 - Distribution and Control Products and Services
High kVAR rating and 336 A amperage enable fast, effective PF correction, reducing line losses and improving voltage quality, which translates to measurable energy savings across motor-driven processes and HVAC systems. The 600 V, 60 Hz three-phase design ensures compatibility with common industrial power systems while supporting reliable operation in demanding environments. Heavy-duty capacitor cells and fused protection deliver long service life and safer maintenance, while the NEMA 1, floor-mounted enclosure supports straightforward installation and service access in busy facilities. The seven-step, 50 kVAR increment provides scalable PF correction to match fluctuating loads, minimizing over- or under-correction and keeping utility penalties in check. Compatibility with AUTOVAR 600 enables seamless integration into existing PF correction architectures, reducing total cost of ownership through standardized components and spare parts. Operational efficiency gains are complemented by strong compliance credentials (UL Listed, CSA Certified) that ease procurement and audit processes. Field reliability is enhanced by a robust enclosure, fused protection, and modular design that simplifies retrofits and future capacity expansion. In practice, manufacturers across automotive, metal forming, plastics, and process industries realize reduced energy waste and improved system stability, while maintenance teams appreciate clear access and predictable performance.
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FAQs
Yes. The 350TPHSR631 is designed to work with the AUTOVAR 600 system and is specified for floor mounting in a NEMA 1 enclosure. It features three-phase operation at 600 V and 60 Hz, with a 350 kVAR rating and 336 A input, making it straightforward to integrate into existing low-voltage PF correction schemes while maintaining safe, accessible maintenance access and fused protection for reliability.
Key specs include 350 kVAR total kVA rating, 336 A amperage, 600 V voltage, 60 Hz frequency, and seven 50 kVAR steps. These parameters enable rapid PF correction for fluctuating loads, reducing line losses and improving voltage regulation. The three-phase configuration enhances balance across phases, while heavy-duty capacitor cells improve longevity under industrial duty cycles.
Industries with high motor loads and variable demand, such as automotive manufacturing, metal forming, plastics processing, and data centers, benefit most. The AUTOVAR 600 integration supports scalable PF correction for changing production schedules, while the NEMA 1 enclosure and floor mounting suit facility-based installations requiring robust protection and easy access for maintenance.
The unit is UL Listed and CSA Certified, reinforcing compliance with electrical safety standards and facilitating procurement audits. These certifications indicate proven safety performance in industrial environments, supporting warranty claims and reducing vendor risk during compliance reviews and safety inspections.
Maintenance centers on periodic inspection of the fused protection, verification of capacitor cells, and replacement of any failing components. ROI stems from energy savings from improved PF, reduced utility penalties, and lower losses on motor loads. The modular seven-step 50 kVAR design enables precise tuning to match load changes, supporting predictable performance and longer equipment life.