Eaton 100MCSR231 Automatic Capacitor Bank - CSA Certified UL Listed
Part Number: 100MCSR231
Quick Summary
Eaton 100MCSR231 is an automatic capacitor bank for power factor correction in three-phase facilities. Engineers face rising reactive power charges and fluctuating loads that destabilize voltage, increase losses, and complicate maintenance. CSA certified and UL listed, with optional NEMA 3R weatherproofing, this solution delivers safety and reliability for indoor and controlled environments. This product integrates with standard switchgear and supports wall-mounted installation, simplifying procurement and enabling predictable energy-management outcomes. With 240A and 240V ratings and 5 x 20 kVAR steps, it scales to evolving load profiles while maintaining performance and ease of service.
Product Information
Extended Description
100MCSR231 Eaton: Eaton AUTOVAR 300, Automatic Capacitor Banks, 240A, 240V, Three-phase, 100 kVAR, Wall-mounted, 5 x 20, 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
100MCSR231
UPC
786685198163
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
Catalog Notes
Other ratings available, please consult factory.
Type
AUTOVAR 300
Amperage Rating
240A
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
240V
Frame size
J
Rating
100 kVAR
Step X kVAR
5 x 20 kVAR
Feature → Automatic, stepped PF correction delivers precise reactive power management by switching 20 kVAR steps (5 x 20 kVAR) to match the load profile. Business Impact: Reduces utility penalties and line losses, improves voltage stability, and enhances system efficiency. Application: Ideal for motors, HVAC, pumps, and other variable-demand loads in manufacturing and processing plants. Feature → CSA Certified and UL Listed design with optional NEMA 3R weatherproofing increases safety and compliance. Business Impact: Speeds approval, supports outdoor or damp locations, and reduces installation risk. Application: Suitable for controlled environments or exterior installations adjacent to equipment yards. Feature → 240V, 240A, 100 kVAR three-phase architecture handles mid-to-large industrial loads with confidence. Business Impact: Improves power quality, reduces energy waste, and aligns with utility programs. Application: Syncs with existing MCCBs and distribution gear for reliable operation. Feature → Wall-mount footprint with 14 in depth and 36 x 36 in footprint saves floor space. Business Impact: Eases retrofit and new-build integration, simplifies wiring, and shortens project timelines. Application: Control rooms, mechanical spaces, and retrofit projects. Feature → Optional molded-case circuit breaker up to 65 kAIC at 480V/600V enhances protection. Business Impact: Limits fault impact, improves safety margins, and extends equipment life. Application: Critical for facilities with high fault-current potential and stringent safety standards.
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FAQs
The 100MCSR231 is designed for wall mounting, freeing floor space and simplifying wiring. Its footprint fits within a 36 by 36 inch area with a 14 inch depth, making it suitable for control rooms and mechanical spaces. Confirm site clearances and conduit routing per applicable codes during installation.
The unit uses five 20 kVAR steps to automatically adjust reactive power in response to changing load. This staged approach minimizes voltage deviations, reduces distribution losses, and prevents overcompensation. It integrates with standard switchgear and control schemes for seamless operation.
Outdoor suitability depends on enclosure options. The base model supports indoor use, with an optional NEMA 3R weatherproofing option for damp or outdoor environments. When installed outdoors, ensure protection against moisture and temperature limits and confirm compliance with local codes.
The 100MCSR231 is CSA Certified and UL Listed, providing essential safety and reliability assurances for industrial power systems. If your project requires additional compliance features, consult the factory for available configurations and documentation.
By reducing reactive power and improving power factor, the 100MCSR231 lowers utility charges and distribution losses. The 100 kVAR rating supports motor and drive efficiency, while wall mounting and modular steps ease installation and future capacity expansion, contributing to a favorable payback profile over equipment life.