Eaton MD93E96 Motor drive isolation transformer - UL Listed
Part Number: MD93E96
Quick Summary
Eaton Motor drive isolation ventilated transformer provides clean, isolated power for motor drive systems in industrial plants. In demanding environments, voltage transients and electrical noise can degrade efficiency and shorten equipment life. UL Listed safety certification supports reliable operation, while the design aligns with common market approvals for global deployments. This solution helps improve uptime and energy efficiency by delivering stable power to drives and control panels, supporting predictable performance across manufacturing lines.
Product Information
Extended Description
MD93E96 Eaton: Drive Isolation Transformer, Ventilated, Dry Type Distribution, DT-3, Three-phase, PV: 575 delta, Taps: 1 at +5% FCAN, 1 at -5% FCBN, SV: 575Y/332V, 150°C, 93 kVA, Al windings, Frame: 915D, uses WS39
Product Name
Eaton Motor drive isolation ventilated transformer
Catalog Number
MD93E96
UPC
786680338687
Product Length/Depth
22 in
Product Height
39 in
Product Width
29 in
Product Weight
600 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
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
575 V
Secondary Voltage
575Y/332 V
Temperature rise
150 °C rise
Volt ampere rating
93 kVA
Weathershield
WS39
Ventilated, dry-type DT-3 transformer with aluminum windings reduces heat buildup and simplifies cooling management, enabling safe operation at a 150°C rise. The result is improved drive reliability and longer service life in continuous operation, particularly in factory automation environments such as conveyors and presses. The 93 kVA three-phase rating in frame 915D delivers ample power for motor starting and drive isolation without derating, reducing the need for oversized consoles and enabling compact switchgear layouts. This also supports lower total cost of ownership through reduced parts and maintenance. With primary 575 V and secondary 575Y/332 V, plus taps at +5% and -5%, commissioning and on-site voltage adjustments are smoother, minimizing voltage mismatch and enhancing drive response. Application flexibility increases as you tune inputs to match variable-speed drives across multi-voltage plants. WS39 Weathershield provides protective enclosure capabilities for outdoor or harsh indoor installations, lowering corrosion risk and maintenance cycles. The dry-type construction eliminates oil handling, simplifying compliance and installation in MCCs and panel boards. Aluminum windings offer a balance of conductivity, weight, and cost, supporting easier cable routing and handling during installation. The combination of UL Listed certification and 60 Hz three-phase operation ensures alignment with standard industrial power availability and regulatory expectations, easing engineering reviews and audits.
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FAQs
MD93E96 is a ventilated, dry-type transformer designed for mounting in overhead or floor-mounted switchgear and motor control centers. Ensure proper clearance for cooling airflow, secure mounting to a rigid base, and access to the WS39 weather shield for environmental protection. Use appropriate protective conduit, follow UL safety guidelines, and verify lead routing to minimize ambient heat buildup and vibration effects.
Key specifications include a 93 kVA Volt-Ampere rating, three-phase configuration, 575 V primary, and 575Y/332 V secondary. It features taps at +5% and -5% for voltage adjustment, 60 Hz frequency, DT-3 design, aluminum windings, a 150°C rise, and a Frame 915D. The unit is UL Listed and designed for drive isolation in industrial environments.
Yes, the MD93E96 incorporates WS39 Weathershield and a ventilated dry-type design, making it suitable for outdoor or harsh indoor installations. The WS39 shield protects windings from weather and dust ingress, while the dry-type construction reduces oil-related maintenance and containment concerns, supporting longer intervals between servicing in challenging environments.
The dual taps (+5% FCAN and -5% FCBN) allow precise voltage matching to drive inputs, helping to compensate for supply fluctuations and voltage drops. This improves drive performance, reduces transient stress on power electronics, and simplifies commissioning in plants with variable utility voltages or long feeders to VFDs.
MD93E96 carries UL Listed certification for safety compliance and reliability in industrial panels. For ongoing performance, schedule periodic visual inspections, verify enclosure seals, test the windings for insulation integrity, and monitor winding temperature during peak loads. Keep spare parts for frame components and taps, and consult Eaton for warranty terms and authorized service providers.