Eaton MV AutoVAR capacitor bank - IEEE Std. 18
Part Number: 478MV2AD41FGMW
Quick Summary
The Eaton MV AutoVAR capacitor bank provides reactive power compensation in medium-voltage networks. Many facilities struggle with voltage instability and energy losses due to poor power factor. Certified to IEEE Std. 18 and CSA, this unit meets critical reliability and safety standards across markets. The auto-switching design and 4.2H detuned filter support efficient grid support, while helping operators cut utility penalties and simplify installation. This product integrates with typical MV switchgear and supports scalable VAR deployment across multiple feeders. By delivering fast VAR response and low-loss operation, it helps ensure voltage regulation for critical processes and minimizes energy waste. With industrial-grade build and compliance alignment, it reduces commissioning risk and accelerates project timelines.
Product Information
Extended Description
478MV2AD41FGMW Eaton: Eaton Automatically Switched MV AutoVAR Capacitor Bank, 478 kVAR, 4160V, 60Hz, 4.2H Detuned Filter
Product Name
Eaton MV AutoVAR filtered capacitor bank
Catalog Number
478MV2AD41FGMW
UPC
786689014476
Product Length/Depth
49 in
Product Height
91 in
Product Width
135 in
Product Weight
7000 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
IEEE Std. 18 CSA Certified (Canada Only)
Type
Capacitor bank
Feature: AutoVAR automatic switching delivers reactive power management without manual intervention. Business Impact: Reduces the need for operator steps, minimizes voltage fluctuations, and lowers losses. Application: Ideal for facilities with variable loads, such as packaging lines or process plants, seeking consistent power quality. Feature: 4.2H detuned filter. Business Impact: Suppresses harmonic resonance, protecting transformers and downstream equipment while extending capacitor life. Application: Beneficial in environments with sensitive electronics or dense MV networks. Feature: 478 kVAR at 4160V. Business Impact: Enables scalable VAR deployment across feeders, improving overall system efficiency and the ability to meet target power factors. Application: Data centers and large manufacturing floors requiring significant MV support. Feature: Robust physical footprint (49 in Ă— 91 in Ă— 135 in) and 7000 lb weight. Business Impact: Demands solid foundation design but provides a durable, long-term solution with predictable lifetime costs. Application: Fleet-wide deployments where reliability and maintenance predictability matter. Feature: Certifications IEEE Std. 18 and CSA. Business Impact: Guarantees performance and safety compliance for North American operations. Application: Essential for regulated industries and multi-site rollouts. Feature: Compatibility with standard MV switchgear. Business Impact: Simplifies integration, reduces installation risk, and shortens commissioning windows. Application: Utilities and industrial facilities updating or expanding MV power quality programs. Feature: Long-term ROI. Business Impact: Energy savings, reduced penalties, and improved process uptime translate to faster payback. Application: Projects targeting energy efficiency mandates and operational excellence.
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FAQs
This unit is a large, heavy cabinet-based installation requiring a solid foundation and proper rigging. Dimensions are 49 in deep, 91 in high, and 135 in wide, with an approximate weight of 7000 lb. Plan for clearances, MV cable terminations, and integration with existing 4160 V switchgear and protection schemes. Coordinate with site safety and electrical codes to ensure compliant, safe commissioning.
Expect improved power factor, reduced voltage dips under peak load, and harmonic mitigation from the detuned filter. The combination of 478 kVAR capacity and 4.2H detuning minimizes resonance risk with nearby equipment, delivering more stable voltage to critical processes and reducing energy losses across MV feeders.
Yes. The AutoVAR functionality is designed to integrate with typical MV switchgear configurations and protection schemes. It supports automatic VAR control with standard control wiring, enabling seamless coordination with existing PLCs or SCADA systems. Ensure proper sectionalizing and coordination with protection relays during commissioning to achieve optimal performance.
This model carries IEEE Std. 18 and CSA certification, confirming reliability standards and safety compliance for North American markets. Certifications matter for regulatory approvals, insurer acceptance, and multi-site deployments, especially where electrical reliability and personnel safety are priorities in regulated industries.
ROI is driven by energy savings from improved power factor, reduced utility penalties, and higher process uptime. The unit’s robust construction and detuned filter reduce maintenance events, while the 25-000 warranty terms offer post-installation protections. Plan for periodic inspection of connections and routine cabinet maintenance to sustain long-term performance.