Eaton 250MCSR631 LV AutoVAR 300 capacitor bank - UL Listed
Part Number: 250MCSR631
Quick Summary
Eaton 250MCSR631 LV AutoVAR 300 capacitor bank improves power factor in industrial three-phase systems. Many facilities struggle with voltage sags and reactive power penalties when PF is unmanaged, leading to higher energy costs and equipment wear. CSA Certified and UL Listed, with NEMA 3R weatherproofing, the unit is designed for reliable wall-mounted operation in harsh environments. This solution integrates seamlessly with Eaton’s AUTOVAR 300 family, delivering predictable performance, straightforward commissioning, and long-term cost savings through efficient energy management and reduced utility charges. Its 240A rating at 600 V and 250 kVAR capacity provide scalable compensation for motor loads, pumps, and conveyors, while optional MCCB protection keeps downtime to a minimum.
Product Information
Extended Description
250MCSR631 Eaton: Eaton AUTOVAR 300, Automatic Capacitor Banks, 240A, 600V, Three-phase, 250 kVAR, Wall-mounted, 5 x 50, 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
250MCSR631
UPC
786685198743
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
600 V
Frame size
J
Rating
250 kVAR
Step X kVAR
5 x 50 kVAR
Eaton Specification Sheet - 250MCSR631
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: Automated reactive power control with AutoVAR 300 delivers continuous PF correction with minimal operator intervention. Business Impact: Reduces utility penalties, improves motor efficiency, and stabilizes voltage profiles across the plant. Application: Ideal for manufacturing lines, HVAC systems, and heavy machinery where load profiles vary. Feature: Three-phase, 600 V operation with 250 kVAR rating and 5 x 50 kVAR steps enables scalable compensation. Business Impact: Supports precise reactive power management and energy savings as demand changes. Application: Suitable for facilities with mixed motor loads and seasonal peaks. Feature: Wall-mounted, J-frame enclosure with dimensions of 36 in W x 36 in H and 14 in D plus NEMA 3R weatherproofing. Business Impact: Simplifies installation, enhances outdoor or damp indoor suitability, and reduces space requirements. Application: Retrofit projects, outdoor equipment yards, and compact electrical rooms. Feature: Optional molded-case circuit breaker rated 65 kAIC at 480/600 V. Business Impact: Improves protection and fault isolation, increasing reliability and ease of maintenance. Application: Utility feeds, switchgear assemblies, and compliant safety installations. Feature: CSA Certified and UL Listed with factory notes for other ratings. Business Impact: Ensures regulatory compliance and a clear warranty path, reducing procurement risk. Application: Projects requiring documented standards and traceability across global sites.
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FAQs
The unit is wall-mounted with a four-wire connection typical for three-phase 600 V systems. Ensure power is de-energized, follow NEC/IEC guidelines, and connect the 240 A conductor per the factory wiring diagram. Consider the optional 65 kAIC MCCB for fault protection and ensure proper clearances for ventilation and maintenance access.
Key specs include three-phase 600 V operation, 250 kVAR rating, 240 A amperage, 5 x 50 kVAR steps, and J-frame, wall-mounted enclosure. It is CSA Certified and UL Listed, with NEMA 3R weatherproofing. Optional molded-case circuit breaker rated 65 kAIC at 480/600 V provides enhanced protection.
Yes. The unit offers NEMA 3R weatherproofing and a wall-mounted enclosure designed for reliability in outdoor or harsh indoor environments. For outdoor applications, ensure proper mounting clearances and rain exposure are considered, and utilize the protection features and weatherproof ratings as specified by Eaton.
The capacitor bank carries CSA Certified and UL Listed marks, indicating compliance with recognized safety standards. It ships with Eaton’s warranty policy, typically covering one year from installation or eighteen months from shipment, whichever comes first, as per the Selling Policy 25-000.
By correcting power factor to near unity, the 250MCSR631 reduces reactive power draw, lowering utility penalties and improving motor efficiency. Typical energy savings depend on load mix and operating hours, but users often see payback within months in facilities with significant motorized loads and reactive demand charges.