Eaton MD660E88 Motor drive isolation transformer - UL Listed
Part Number: MD660E88
Quick Summary
MD660E88 is a motor drive isolation ventilated transformer for industrial drive systems. Engineers rely on predictable startup, EMI control, and reliable operation in demanding environments, and this unit is designed to meet those needs. UL Listed safety certification provides validated electrical safety and safer field deployment. The DT-3 dry-type design with aluminum windings supports robust heat management, while 60 Hz operation and 660 kVA rating deliver scalable performance for modern drive applications. By combining isolation with ventilated cooling, this transformer helps protect downstream equipment and improve overall system uptime, supporting efficient procurement and simplified maintenance planning for industrial facilities.
Product Information
Extended Description
MD660E88 Eaton: Eaton 660 kVA Rating; 3-Phase; DT-3 Drive Isolation Transformer; Ventilated; 230; 230Y/133; 150 Degree C; Aluminum Windings
Product Name
Eaton Motor drive isolation ventilated transformer
Catalog Number
MD660E88
UPC
786680337000
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
0.001 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
UL Listed
Coil material
Aluminum
Design
DT-3
Tap size
1 at +5% FCAN, 1 at -5% FCBN
Type
Dry Type Distribution, Drive Isolation Transformer
Frequency rating
60 Hz
Kva Rating
660 kVA
Phase
Three-phase
Primary voltage
230 V
Secondary Voltage
230Y/133 V
Temperature rise
150 °C rise
Feature → Business Impact → Application: The MD660E88 delivers a 660 kVA three-phase transformer with a DT-3 drive isolation design, primary 230 V and secondary 230Y/133 V. This combination reduces startup transients and EMI in motor drive loops, enabling smoother VFD operation and less equipment interference in production lines. Application: ideal for motor control centers and drive rooms where precision voltage transfer and reliable isolation are critical for uptime. Feature → Business Impact → Application: Ventilated dry-type construction with aluminum windings significantly improves heat dissipation, extending insulation life and reducing maintenance cycles in high-load drive environments. Application: suitable for packaging, extrusion, and processing lines with continuous heavy-duty cycling. Feature → Business Impact → Application: Tap size options at +5% and -5% provide voltage regulation under fluctuating supply conditions, enabling consistent motor speed and performance across sites. Application: scalable across facilities with variable grid quality. Feature → Business Impact → Application: UL Listed certification offers verified safety compliance, reducing risk during installation and enabling faster commissioning. Application: supports compliance-driven projects and audits. Feature → Business Impact → Application: The compact, dry-type design is compatible with indoor control rooms and electrical rooms, simplifying installation alongside other drive components. Application: streamlines retrofit projects and new builds alike. Feature → Business Impact → Application: Aluminum windings improve durability in harsh environments, delivering longer service life and lower lifecycle costs. Application: relevant to high-temperature or dusty plants where cooling and resilience matter.
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FAQs
MD660E88 is a three-phase, dry-type transformer with a DT-3 design and ventilated construction, making it well-suited for indoor drive rooms and control panels. Its primary voltage of 230 V and secondary of 230Y/133 V align with common motor drive requirements, simplifying integration with standard switchgear and VFDs.
Key metrics include the 660 kVA rating, 60 Hz frequency, and the drive isolation configuration. The aluminum windings and ventilated design support thermal management for high-load periods, while the +/−5% voltage taps help tolerate input fluctuations, maintaining stable motor speeds during peak operations.
Yes. The DT-3 dry-type drive isolation transformer offers reliability and safety in critical applications such as packaging, plastics, and metalworking lines. With UL Listed certification, it meets recognized safety standards, aiding compliance in regulated environments and facilitating acceptance in audits.
The MD660E88 carries UL Listed certification, indicating compliance with established electrical safety standards. This helps mitigate installation risk and supports safe operation in industrial facilities where safety certifications influence procurement decisions.
The ventilated dry-type design with aluminum windings enhances heat dissipation, reducing insulation stress and extending service life. This translates to longer maintenance intervals, lower operating costs, and improved total cost of ownership for facilities with continuous drive operations.