Eaton MD63E93CUEE Motor Drive Isolation Transformer - TP-1
Part Number: MD63E93CUEE
Quick Summary
The Eaton MD63E93CUEE motor drive isolation transformer is a ventilated dry-type device designed for drive isolation in three-phase motor systems. In motor control centers, space constraints, heat buildup, and reliability concerns can impact uptime; this unit addresses these challenges with copper windings, a 150°C temperature rise capability, and a compact DT-3 frame. UL Listed and NEMA TP-1 compliant, with NEMA TP-1 efficient designation, it meets industry safety and efficiency standards while reducing energy losses. This model supports a 60 Hz three-phase network with a 460 V primary and 575Y/332 V secondary, offers taps at +5% and -5%, and pairs well with WS39 WeatherShield for harsh environments, delivering durable, maintainable performance.
Product Information
Extended Description
MD63E93CUEE Eaton: Drive Isolation Transformer, Ventilated, Dry Type Distribution, DT-3, Three-phase, PV: 460 delta, Taps: 1 at +5% FCAN, 1 at -5% FCBN, SV: 575Y/332V, 150°C, 63 kVA, Cu windings, Frame: 915D, uses WS39
Product Name
Eaton Motor drive isolation ventilated transformer
Catalog Number
MD63E93CUEE
UPC
786680082740
Product Length/Depth
22 in
Product Height
39 in
Product Width
29 in
Product Weight
617 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.
Compliances
NEMA TP-1 Compliant
Certifications
UL Listed
Catalog Notes
NEMA TP-1 efficient
Coil material
Copper
Design
DT-3
Frame
915D
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
460 V
Secondary Voltage
575Y/332 V
Temperature rise
150 °C rise
Volt ampere rating
63 kVA
Weathershield
WS39
Feature → Copper windings and the DT-3 design deliver low copper losses and robust short-circuit withstand, and improved heat dissipation in confined MCC spaces. This translates to lower operating temperatures, higher efficiency under load, and longer line life, reducing cooling costs and maintenance intervals. Application: ideal for motor drives, variable-frequency drives, and other high-inrush loads in modern manufacturing where compact cooling and reliable isolation are critical. Feature → Ventilated, WS39 weather shield and dry-type insulation enable safe operation in dusty, humid environments and with limited enclosure cooling. Business impact: reduces enclosure cooling loads, simplifies installation in retrofit projects, and minimizes fire risk while improving ambient air quality around critical circuits. Application: motor control centers, process automation cabinets, and outdoor or semi-outdoor installations requiring rugged protection. Feature → Voltage flexibility via taps at +5% FCAN and -5% FCBN supports voltage regulation during supply fluctuations. Impact: reduces drive stress, maintains consistent bus voltages for VFDs, and improves control loop stability. Application: facilities with long feeders, variable supply quality, or utilities with voltage drop scenarios; works with three-phase 460 V systems feeding 575Y/332 V loads. Feature → Compliance and certifications: UL Listed, NEMA TP-1 Compliant, and NEMA TP-1 efficient designation. Impact: procurement risk minimization, faster regulatory acceptance, and potential energy savings across the system. Application: plant-floor deployments, OEM control panel integrations, and projects requiring explicit energy efficiency labeling. Feature → Physical footprint and rugged construction: frame 915D, dimensions roughly 22 in length, 29 in width, 39 in height, and weight 617 lb. Impact: predictable mounting in MCCs, streamlined installation planning, and long service life in demanding environments. Application: retrofit projects or new builds where space planning and durability matter. Feature → Warranty and support: Eaton’s policy offers one year from installation or 18 months from shipment. Impact: reduces risk for asset owners, simplifies service contracts, and provides confidence for long-term ROI. Application: procurement teams, maintenance planners, and asset managers evaluating total cost of ownership.
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FAQs
Plan for a heavy-duty footprint: the unit measures 22 in by 29 in by 39 in and weighs about 617 lb, so ensure proper clearances, rigid mounting, and ventilation. Confirm three-phase 460 V input and 575Y/332 V output compatibility, provide accessible wiring trays, and allow space for service access around the frame 915D.
The 460 V primary feeds a 575Y/332 V secondary to suit motor drives and VFDs in a three-phase network at 60 Hz. This configuration supports stable voltage transfer to drive electronics, reduces bus voltage stress, and helps maintain consistent speed control in variable-speed applications.
Yes. The transformer is UL Listed and NEMA TP-1 Compliant, with a noted NEMA TP-1 efficiency designation in the catalog notes. These certifications support safe operation, code compliance, and energy performance labeling across regulated installations.
Copper windings offer high conductivity and durability, while the dry-type insulation eliminates oil-related risks and simplifies maintenance. The DT-3 design accommodates a 150°C rise, enabling reliable operation in densely packed installations with minimal servicing needs and lower environmental impact.
Yes. The taps at +5% FCAN and -5% FCBN provide practical voltage adjustment to accommodate supply variations, helping maintain stable inputs to VFDs and protecting motor windings from excessive voltage stress in installations with long feeders or variable utility quality.