Eaton 225MCSR431MW AutoVAR capacitor bank - UL 508A
Part Number: 225MCSR431MW
Quick Summary
Eaton LV AutoVAR 300 capacitor bank is a reliable reactive power compensation solution for 480V, three-phase industrial systems. Plant operators often face rising energy costs and voltage swings that reduce motor efficiency and shorten equipment life. UL 508A, CSA Std. C22.2 No. 190, UL 810, and IEEE 18 certified, it enables safe panel mounting and code-compliant installation. With 225 kvar capacity and a space-conscious footprint, it delivers measurable business value by reducing utility charges and stabilizing voltage across loads. As part of Eaton's AutoVAR family, it scales with your facility needs and supports straightforward integration with existing controls.
Product Information
Extended Description
225MCSR431MW Eaton: Eaton wall mtd, switched cap bank, 480V, 225 kvar 400 cb and 3R
Product Name
Eaton LV AutoVAR 300 capacitor bank
Catalog Number
225MCSR431MW
UPC
786685198651
Product Length/Depth
14 in
Product Height
60 in
Product Width
36 in
Product Weight
340 lb
Certifications
UL 508A CSA Std. C22.2 No. 190 UL 810 IEEE Std. 18
Type
AutoVAR
Phase
Three-phase
Feature → Business Impact → Application: The AutoVAR 300 capacitor bank provides automatic reactive power compensation for 480V three-phase systems, which directly improves power factor and reduces peak kVA demand. This translates to lower utility charges and better energy efficiency for general manufacturing lines, pumps, and conveyors. Application: Ideal for mid-size facilities seeking reliable, scalable VAR support without extensive reconfiguration of existing switchgear. Feature → Business Impact → Application: With a 225 kvar rating, the unit delivers substantial reactive power injection to stabilize voltage during motor starts and variable loads, reducing voltage drop and flicker. This supports precision machining, stamping presses, and HVAC-driven processes in demanding environments. Feature → Business Impact → Application: UL 508A, CSA, UL 810, and IEEE 18 certifications ensure compliance and safety in panel installations. This minimizes commissioning risk and accelerates inspection readiness for food processing, packaging lines, and metals fabrication. Feature → Business Impact → Application: Wall-mounted enclosure and a compact footprint (14 in L × 60 in H × 36 in W; 340 lb) enable straightforward integration into existing control rooms or protected enclosures. Benefit: faster installation, minimizes footprint, and reduces remodeling costs for upgrades. Feature → Business Impact → Application: Durable construction and maintenance-friendly design support long service life with reduced maintenance downtime. Benefit: lower total cost of ownership and improved equipment longevity for continuous operation environments such as water treatment and industrial automation lines.
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FAQs
The 225MCSR431MW is designed for wall-mounted installation in low-voltage control panels and enclosures. It operates at 480 V three-phase systems and uses a standard catalog number that aligns with common Eaton panel architectures. For best results, pair with a suitable switchgear disconnect, proper venting, and clear clearances to meet UL 508A installation requirements. This ensures safe commissioning and straightforward integration with existing controls.
With a 225 kvar rating, the unit delivers substantial reactive power support to improve power factor and reduce voltage drop under heavy motor loads. Expect reduced apparent power (kVA) demand, smoother voltage profiles during startup, and lower utility demand charges. It is well-suited for applications with large motors, conveyors, and pumps where stable power quality directly translates to efficiency gains.
Yes. The AutoVAR 300 is ideal for manufacturing, packaging, and HVAC-intensive facilities needing reliable, continuous VAR support. Its 480V three-phase configuration, 225 kvar rating, and robust certification set (UL 508A, CSA, UL 810, IEEE 18) ensure consistent performance and compliance in demanding production environments, with minimal risk during audits and routine maintenance.
Key certifications include UL 508A for industrial controls, CSA Std. C22.2 No. 190, UL 810 for environmental suitability, and IEEE Std. 18 for capacitor bank performance. These credentials support safe panel mounting, electrical safety, and reliability in regulated facilities, reducing commissioning delays and improving audit readiness across industrial sectors.
The ROI comes from energy cost savings via improved power factor and reduced peak demand charges, along with extended equipment life from stabilized voltage. Maintenance is typically minimal for a capacitor bank of this class, thanks to solid-state switching and robust enclosure design. Planned inspections and thermal checks during scheduled downtime help sustain performance and prevent unexpected downtime.