Eaton 225MCSR431 Capacitor Bank - UL Listed 480V 3-Phase
Part Number: 225MCSR431
Quick Summary
The Eaton LV AutoVAR 300 capacitor bank improves power factor and voltage stability in industrial 3-phase systems. Users often face reactive power penalties and downtime due to PF fluctuations under variable loads. This unit carries CSA Certified and UL Listed markings, including UL 508A and UL 810, with IEEE Std. 18 compliance for reliable capacitor bank operation. As part of the AUTOVAR 300 family, it supports efficient energy management, reduced demand charges, and straightforward wall mounting for fast deployment. With weatherproofing and optional breaker protection, the solution is prepared for harsh environments and evolving facility needs. This combination helps procurement teams meet uptime SLAs and integrate seamlessly with existing switchgear.
Product Information
Extended Description
225MCSR431 Eaton: Eaton AUTOVAR 300, Automatic Capacitor Banks, 270A, 480V, Three-phase, 225 kVAR, Wall-mounted, 5 x 45, 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
225MCSR431
UPC
786685198392
Product Length/Depth
14 in
Product Height
36 in
Product Width
36 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 UL 508A CSA Std. C22.2 No. 190 UL 810 IEEE Std. 18
Catalog Notes
Other ratings available, please consult factory.
Type
AUTOVAR 300
Amperage Rating
270A
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
225 kVAR
Step X kVAR
5 x 45 kVAR
270 A amperage rating at 480 V three-phase is the core capability of the AutoVAR 300. This enables effective reactive power management for typical industrial loads, cutting VAR penalties and stabilizing voltage during load fluctuations. It’s well-suited for manufacturing floors and equipment that run on 480 V three-phase power. 225 kVAR total capacity with 5 x 45 kVAR steps provides scalable VAR support. The business impact: granular control allows stepwise power factor correction, minimizing oversizing and reducing energy waste. Application: supports varying load profiles in production lines and large motors. Wall-mount configuration with a J frame simplifies installation and keeps critical equipment accessible. Business impact: faster deployment, easier maintenance, and space optimization in constrained electrical rooms. Application: ideal for retrofit projects and new builds in compact plant layouts. Optional molded-case circuit breaker rated 65 kAIC at 480V and 600V provides protective coordination. Business impact: enhances fault isolation, meets short-circuit requirements, and improves overall system reliability. Application: enables safe integration with existing switchgear and metering panels. NEMA 3R weatherproofing and broad certifications ensure safe operation in diverse environments. Business impact: enables outdoor or damp location installation and simplifies compliance documentation for audits. Application: data centers, outdoor substations, machine rooms requiring reliable protection. Warranty and service: standard policy offers one year from installation or 18 months from shipment. Business impact: reduces procurement risk and supports lifecycle planning. Application: procurement for facilities with stringent uptime targets.
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FAQs
Install the 225MCSR431 as a wall-mounted AUTOVAR 300 in a 480 V three-phase panel. Mount on a sturdy wall with proper clearance and ventilation, then connect to a suitable supply and protection device. Optional 65 kAIC molded-case breakers are compatible for enhanced protection; consult factory for other ratings and ensure CSA/UL compliance.
The unit delivers 270 A at 480 V in a three-phase configuration and provides 225 kVAR total capacity with 5 x 45 kVAR steps. It is designed for wall mounting, uses a J frame, and supports NEMA 3R weatherproofing. Optional 65 kAIC MCCB protection is available at 480 V and 600 V.
Yes. With 225 kVAR total capacity and 480 V three-phase operation, the AutoVAR 300 improves power factor and stabilizes voltage, which reduces reactive power penalties and energy waste. Its wall-mount form factor suits retrofit projects and dense plant environments, while NEMA 3R weatherproofing adds environmental resilience for data centers and manufacturing floors.
The 225MCSR431 carries CSA Certified and UL Listed markings, including UL 508A and UL 810, with IEEE Std. 18 compliance. These certifications support safety, reliability, and code compliance for electrical distribution equipment, making the unit suitable for panel assemblies and industrial installations across regulated facilities.
The unit ships with a standard one-year warranty (or 18 months from shipment), reducing procurement risk and aiding lifecycle planning. By enabling faster PF correction and reducing demand charges, it typically delivers measurable energy cost savings. Routine checks focus on visual inspection and connection integrity; consult Eaton for recommended preventive maintenance intervals.