Eaton 175MCSR431 LV AutoVAR 300 Capacitor Bank - UL Listed
Part Number: 175MCSR431
Quick Summary
Eaton LV AutoVAR 300 capacitor bank delivers compact reactive power compensation for commercial and industrial electrical systems. This solution helps mitigate voltage flicker and motor starting currents in space-limited facilities, improving equipment uptime and process stability. CSA Certified and UL Listed alongside NEMA 3R weatherproofing ensure safety, reliability, and code compliance in harsh environments. With 480 V three-phase operation and a 175 kVAR rating, this wall-mounted unit delivers predictable power factor correction while enabling straightforward integration with optional molded-case breakers. Designed for retrofit or new-build projects, it supports scalable capacity (5 x 35 kVAR steps) and reduces energy costs without sacrificing performance.
Product Information
Extended Description
175MCSR431 Eaton: Eaton LV AutoVAR 300 capacitor bank, 210A, 480V, Three-phase, 175 kVAR, Wall-mounted, 5 x 35, J Frame, Optional molded-case circuit breaker rated 65 kAIC at 480V and 600V, NEMA 3R weatherproofing.
Product Name
Eaton LV AutoVAR 300 capacitor bank
Catalog Number
175MCSR431
UPC
786685198378
Product Length/Depth
14 in
Product Height
36 in
Product Width
14 in
Product Weight
270 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
CSA Certified UL Listed
Catalog Notes
Other ratings available, please consult factory.
Type
AUTOVAR 300
Amperage Rating
210A
Mounting
Wall
Options
Optional molded-case circuit breaker rated 65 kAIC at 480V and 600V, NEMA 3R weatherproofing.
Phase
Three-phase
Product Category
Automatic Capacitor Banks
Voltage rating
480 V
Frame size
J
Rating
175 kVAR
Step X kVAR
5 x 35 kVAR
Feature: 210 A input and 175 kVAR output at 480 V three-phase enable accurate power-factor correction across mid-size loads. Business Impact: This translates to a higher power factor, lowers utility penalties, reduces feeder currents, and yields more stable voltage for motors and drives, resulting in fewer nuisance trips and smoother production lines. Application: Suitable for manufacturing floors, HVAC clusters, and mixed-load facilities seeking efficient, scalable PF correction. Feature: Five 35 kVAR steps (5 x 35 kVAR) allow staged, scalable correction to match evolving load profiles. Business Impact: The modular approach minimizes the risk of over-correction, enables phased commissioning, and spreads capital expenditure over time while preserving rapid payback due to immediate PF improvements. Application: Retrofit projects and new installations where future capacity growth is anticipated, with simple sequencing and clear expansion paths. Feature: Wall-mounted design in a compact 14 in by 14 in by 36 in footprint weighs 270 lb and uses a rugged J-frame for secure mounting. Business Impact: Space efficiency reduces enclosure footprint, speeds installation, and simplifies service access in tight electrical rooms. Application: Space-constrained facilities, outdoor or protected indoor spaces, and retrofit sites where floor space is at a premium and weather exposure is a consideration. Feature: Optional molded-case circuit breaker rated 65 kAIC at 480 V and 600 V provides integrated protection and flexible coordination. Business Impact: Improves safety, short-circuit response, and code compliance while decreasing panel proliferation and wiring complexity. Application: Systems requiring high fault-current protection with streamlined wiring and a single, factory-assembled solution for easier commissioning. Feature: CSA Certified and UL Listed, with NEMA 3R weatherproofing and Eaton warranty coverage. Business Impact: Delivers documented safety, regulatory compliance, and predictable service life, reducing procurement risk for regulated facilities. Application: Capital projects and maintenance programs where reliable performance, traceable certifications, and long-term support matter for uptime and total cost of ownership.
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FAQs
Installation starts with mounting the wall unit in a clean, ventilated electrical space and ensuring dedicated clearance for service access. Connect the 480V three-phase bus to the unit’s input terminals, then wire the optional molded-case circuit breaker rated 65 kAIC per the factory wiring diagrams. Use proper grounding and follow local codes; verify insulation, torque specs, and labeling before energizing.
With a 210A amperage rating and a 175 kVAR capacity, the unit provides scalable power factor correction through five 35 kVAR steps. In typical mixed loads, expect noticeable improvement in PF, smoother voltage profiles, and reduced peak current draw on feeders. The 480V three-phase design supports consistent operation under nominal load and transient events.
Yes. The unit features NEMA 3R weatherproofing and CSA/UL certifications, enabling reliable outdoor or harsh indoor installations. Wall mounting saves floor space and reduces enclosure costs, while maintaining accessibility for service and testing. When exposed to outdoor conditions, ensure proper enclosure seals and drainage, and follow installation clearances to prevent moisture ingress and heat buildup.
The 175MCSR431 carries CSA Certified and UL Listed marks, aligning with widely adopted electrical safety standards. It also supports risk reduction through a rugged J-frame design, 480V three-phase configuration, and optional MCCB protection rated 65 kAIC, enhancing short-circuit protection and arc-flash safety. These features streamline sourcing, qualifications, and documentation for code-compliant installations across facilities.
Expect quick ROI from energy-cost reductions due to improved PF and reduced demand charges, especially in facilities with fluctuating loads or motors. Maintenance is minimal; once installed, routine inspection of connections and enclosure integrity suffices. The optional MCCB option and CSA/UL listings minimize warranty exposure and service issues, helping facilities plan budgets with predictable lifecycle costs.