Eaton 150MCSR431 capacitor bank - UL 508A, 480V AutoVAR
Part Number: 150MCSR431
Quick Summary
The Eaton 150MCSR431 capacitor bank delivers automatic VAR support for industrial power systems. For facilities balancing heavy motor loads, reactive power can drift, causing voltage fluctuations and higher energy costs. This unit carries UL 508A, CSA Std. C22.2 No. 190, and UL 810 certifications, with IEEE Std. 18 guidelines that bolster safety and reliability in demanding environments. The AutoVAR design provides rapid, programmable capacitive support, reducing waveform distortion and improving power factor. Built for wall mounting in control rooms or equipment spaces, it integrates with 480V three-phase infrastructure and Eaton LV AutoVAR families. By optimizing reactive power locally, it supports compliance, reduces penalties, and enhances overall plant efficiency through smarter power management.
Product Information
Extended Description
150MCSR431 Eaton: Eaton wall mtd, switched cap bank, 480V, 150 kvar
Product Name
Eaton LV AutoVAR 300 capacitor bank
Catalog Number
150MCSR431
UPC
786685198996
Product Length/Depth
14 in
Product Height
36 in
Product Width
36 in
Product Weight
240 lb
Certifications
UL 508A CSA Std. C22.2 No. 190 UL 810 IEEE Std. 18
Type
AutoVAR
Phase
Three-phase
Feature 1: AutoVAR 300 capacity and three-phase 480V operation deliver precise reactive power compensation, reducing voltage drop across heavy motor loads. Business Impact: improved power quality and reduced energy waste translate into lower utility costs and extended equipment life. Application: ideal for large manufacturing lines and energy-intensive processes that demand stable voltage control and rapid capacitor switching. Feature 2: Wall-mounted, compact footprint (14 in depth; 36 in x 36 in) enables straightforward retrofits and space-efficient installation. Business Impact: simpler integration into existing control panels and electrical rooms reduces installation time and labor costs. Application: retrofit projects in legacy facilities and new builds with limited space. Feature 3: 150 kvar reactive power rating supports scalable PF correction for variable-load scenarios. Business Impact: helps meet power-factor targets, minimizes demand charges, and improves grid friendliness. Application: facilities with pumps, fans, and conveyors requiring robust VAR support. Feature 4: Robust safety certifications UL 508A, CSA Std. C22.2 No. 190, UL 810, IEEE Std. 18. Business Impact: ensures regulatory compliance and reliable performance in harsh industrial environments. Application: procurement for regulated industries and multi-site deployments. Feature 5: Heavy-duty enclosure design (240 lb) and three-phase compatibility provide durable, reliable operation in challenging settings. Business Impact: reduced maintenance disruptions and longer service intervals. Application: control rooms, machine shops, and processing plants where uptime is critical.
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FAQs
The 150MCSR431 is designed for 480V three-phase systems and is wall-mounted for straightforward integration into standard control panels and equipment spaces. It supports Eaton LV AutoVAR families, reducing wiring complexity and shortening commissioning time in industrial facilities. Installers will appreciate the compact footprint and robust enclosure, which fit common panel layouts without major redesigns.
Key specs include 480V operation and a 150 kvar reactive power rating, enabling substantial power factor correction for large motor loads. The AutoVAR control provides staged capacitor switching to minimize voltage sag and harmonic distortion, delivering measurable energy savings and more stable operation in manufacturing environments.
Ideal for facilities with heavy motor loads such as pumps, fans, presses, and conveyors, where reactive power fluctuates. It offers scalable VAR support to accommodate changing plant loads, making it suitable for retrofits in aging plants and new installations requiring reliable power quality without extensive electrical overhauls.
UL 508A, CSA Std. C22.2 No. 190, UL 810, and IEEE Std. 18 certify safety, electrical installation suitability, equipment reliability, and performance in industrial settings. These approvals simplify procurement, support regulatory compliance, and facilitate inspections, especially in regulated sectors like manufacturing, data centers, and food processing.
Installation benefits include wall mounting and a defined footprint (14 in depth, 36 in by 36 in), supporting quick integration with existing systems. The enclosure weighs 240 lb and is built for rugged environments, requiring only periodic visual checks and connection integrity. The result is reduced reactive power penalties and improved long-term power reliability, contributing to favorable ROI.