Eaton MD75E63 Drive Isolation Transformer - UL Listed
Part Number: MD75E63
Quick Summary
MD75E63 is an Eaton drive isolation transformer designed for motor drives in industrial automation. It provides isolated, clean power to VFDs, reducing transients, insulation stress, and downtime. UL Listed certification supports safety and reliability in demanding environments, while the dry-type DT-3 construction helps minimize fire risk and enclosure footprint. With a 75 kVA rating and a 380/415 V primary to 460Y/266 V secondary, it matches common plant power architectures. This solution complements panel and MCC layouts, delivering improved uptime and simpler maintenance for evolving automation systems.
Product Information
Extended Description
MD75E63 Eaton: Drive Isolation Transformer, Ventilated, Dry Type Distribution, DT-3, Three-phase, PV: 380/415V delta, Taps: 1 at +5% FCAN, 1 at -5% FCBN, SV: 460Y/266V, 150°C, 75 kVA, Al windings, Frame: 914D, uses WS39
Product Name
Eaton Motor drive isolation ventilated transformer
Catalog Number
MD75E63
UPC
786680036590
Product Length/Depth
22 in
Product Height
39 in
Product Width
29 in
Product Weight
536 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
Frame
914D
Tap size
1 at +5% FCAN, 1 at -5% FCBN
Type
Dry Type Distribution, Drive Isolation Transformer
Frequency rating
60 Hz
Phase
Three-phase
Primary voltage
380/415 V
Secondary Voltage
460Y/266 V
Temperature rise
150 °C rise
Volt ampere rating
75 kVA
Weathershield
WS39
Feature: Dry-type ventilated DT-3 construction; Business Impact: safer operation with reduced heat buildup and no oil-filled enclosure; Application: drive isolation in control panels and MCCs to sustain motor drive reliability. Feature: 75 kVA rating; Business Impact: supports substantial drive loads and headroom for future expansion; Application: medium-large motor drive applications in manufacturing lines and processing facilities. Feature: Primary 380/415 V and secondary 460Y/266 V; Business Impact: broad compatibility with standard plant power systems; Application: seamless integration into existing electrical infrastructure. Feature: Tap settings at +5% and -5%; Business Impact: voltage regulation to compensate line fluctuations; Application: precise control in environments with variable utility supply. Feature: Aluminum windings and 914D frame; Business Impact: robust mechanical fit with favorable thermal performance; Application: tough industrial installations with space constraints. Feature: Weathershield WS39 enclosure; Business Impact: enhanced protection for outdoor or harsh environments; Application: outdoor panel installations and exposed plant areas. Feature: 60 Hz, three-phase operation; Business Impact: compatibility with common North American industrial power; Application: factory floors, process lines, and packaging facilities. Feature: 150°C rise rating; Business Impact: higher insulation margin under load transients; Application: demanding control environments where reliability matters. Feature: UL Listed certification; Business Impact: regulatory safety compliance and market acceptance; Application: plant-wide approval for installation in regulated facilities. Warranty: One year from installation or eighteen months from shipment; Business Impact: risk mitigation and predictable maintenance budgeting; Application: procurement planning and service planning for capital equipment.
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FAQs
Install the primary across the 380/415 V delta supply and connect the secondary to the 460Y/266 V load side. Use the +5% and -5% primary taps to compensate for voltage variations on site. Mount the unit in a ventilated enclosure compatible with its 914D frame and WS39 shield, ensuring proper clearance for cooling and service access.
Confirm a 75 kVA rating, three-phase 60 Hz operation, primary 380/415 V, secondary 460Y/266 V, and aluminum windings. Check the +5%/−5% tap settings and ensure mounting in a dry, ventilated area with the WS39 weather shield if outdoors. Refer to the Eaton datasheet for full dimensional and thermal limits.
Yes. The MD75E63 is designed for drive isolation, reducing voltage transients and insulation stress on motor drives. Its dry-type, ventilated DT-3 construction and 75 kVA rating support reliable VFD feeding in manufacturing, packaging, and processing environments while maintaining safe enclosure temperatures and compliance with electrical safety practices.
The MD75E63 is UL Listed, providing recognized safety compliance for industrial installations. While regional requirements vary, UL Listing offers a clear baseline for safe operation, supplier responsibility, and contractor acceptance. Verify any additional local or site-specific standards (CE, IP ratings) with your facilities team before deployment.
The product warranty is one year from installation or eighteen months from shipment, whichever occurs first. For ROI, plan routine visual inspections, verify cooling paths and enclosure integrity, confirm tap settings after voltage swings, and schedule periodic electrical tests to maintain insulation integrity and minimize unplanned downtime.