Eaton 125MCSR231MW AutoVAR Capacitor Bank - UL 508A
Part Number: 125MCSR231MW
Quick Summary
Eaton LV AutoVAR 125MCSR231MW is a three-phase capacitor bank for reactive power management in industrial power systems. Facilities often contend with voltage fluctuations and energy penalties caused by poor power factor, which this AutoVAR bank helps mitigate with automatic VAR control. It carries UL 508A, UL 810, CSA Std. C22.2 No. 190, and IEEE Std. 18 certifications, underscoring safety, interoperability, and reliable capacitor switching. Designed for wall-mount installation, this solution supports improved efficiency, reduced operating costs, and predictable maintenance in industrial automation environments, while aligning with common procurement workflows and Eaton’s documentation for fast specification and deployment.
Product Information
Extended Description
125MCSR231MW Eaton: Eaton wall mtd, switched cap bank, 240V, 125 kvar 600 cb and 3R
Product Name
Eaton LV AutoVAR 300 capacitor bank
Catalog Number
125MCSR231MW
UPC
786685198323
Product Length/Depth
14 in
Product Height
60 in
Product Width
36 in
Product Weight
377 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 three-phase AutoVAR design combines a switched capacitor bank with automatic VAR control to rapidly adjust reactive power in response to load changes. This capability delivers measurable business impact: improved power factor, reduced utility penalties, smoother voltage profiles, and less motor wear across fans, pumps, or conveyors. In manufacturing floors, packaging lines, and data center cooling, the inline VAR support minimizes voltage sags and unplanned downtime while supporting tighter process controls. Compatibility and installation advantages: Wall-mount installation and a compact 14 in depth help integrate the unit into existing electrical rooms and panel layouts without major rework. The 36 in width and 60 in height create a robust enclosure that allows for proper cooling and convenient service access. With a 377 lb weight, the unit is designed for secure mounting and straightforward pre-wiring, reducing field labor and commissioning time for new builds or retrofit projects. Certifications and safety: Certified to UL 508A, UL 810, and CSA Std. C22.2 No. 190, the AutoVAR bank meets rigorous industrial standards for control panels and electrical equipment. IEEE Std. 18 compatibility ensures reliable capacitor switching under fluctuating loads, while the 3R enclosure rating supports safe operation in typical plant environments. The combination of 125 kvar rating and 240V operation provides a well-defined, design-ready specification for system engineers and procurement teams. Reliability and maintenance: The switched-capacitor topology reduces moving parts while delivering consistent performance across heat cycles and voltage variations. With Eaton's documentation and field guidance, commissioning is faster and maintenance intervals are simplified, lowering total cost of ownership. The system's modular approach supports future capacity upgrades and straightforward fault isolation, helping maintenance staff diagnose issues quickly and minimizing downtime in critical production lines. Business outcomes and compatibility: The 125 kvar rating is suitable for medium to large facilities seeking proactive power factor correction, with straightforward integration into existing power distribution schemes. The Eaton specification sheet accelerates procurement and ensures compatibility with plant controls and protection schemes. By stabilizing voltage and reducing reactive losses, facilities can improve motor efficiency, extend equipment life, and achieve compliant, predictable energy performance across facilities.
Get a Quick Quote for a Eaton 125MCSR231MW
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton 125MCSR231MW?
Enquire Now
FAQs
Installation requires wall-mounting in a suitable electrical room with clear access for service and cooling. Plan for 240V three-phase power, space for the 14 in depth, 36 in width, and 60 in height enclosure, and a safe disconnect strategy. Ensure proper clearance for ventilation and compliance with UL 508A/UL 810 requirements and CSA guidelines during panel integration.
The unit provides 125 kvar of reactive power at 240V in a three-phase configuration, with switched capacitor technology and AutoVAR control. It is built as a wall-mounted bank with a 3R enclosure and carries certifications including UL 508A, UL 810, CSA, and IEEE 18 for reliable capacitor switching under varying loads.
Yes. The 125MCSR231MW is UL 508A listed, UL 810 certified, and CSA Std. C22.2 No. 190 compliant, ensuring safe integration into industrial control panels and plant electrical systems. This certification suite supports regulatory compliance during installation, enclosure safety, and coordinated protection strategies.
ROI centers on improved power factor, reduced reactive power penalties, and lower motor stress, which translate to energy savings and longer equipment life. With a wall-mounted, low-maintenance switched-capacitor design, total cost of ownership is reduced through fewer field maintenance events and faster commissioning using Eaton documentation.
AutoVAR continuously monitors network reactive power and automatically switches capacitor banks to maintain target power factor. This dynamic regulation lowers voltage fluctuations and stabilizes voltage under varying load conditions, making it suitable for motors, drives, HVAC, and other high-variance loads found in manufacturing and data centers.