Eaton MD93E67ES Motor drive isolation transformer - UL
Part Number: MD93E67ES
Quick Summary
Eaton MD93E67ES Motor drive isolation ventilated transformer provides clean, isolated power for three-phase drive systems in industrial automation. In harsh factory environments, voltage transients and grounding noise can jeopardize VFDs and motors, leading to unplanned downtime. This unit carries UL Listed certification and leverages a rugged DT-3 dry-type design with an electrostatic shield to support safe, compliant operation. The ventilated construction and WS19 weather shield compatibility help ensure reliable performance in outdoor or harsh environments, while voltage taps accommodate site variations. By combining robust protection with simple installation and predictable maintenance, it delivers measurable business value through improved uptime and reduced lifecycle costs for motor-drive applications.
Product Information
Extended Description
MD93E67ES Eaton: Drive Isolation Transformer, Ventilated, Dry Type Distribution, DT-3, Three-phase, PV: 380 delta, Taps: 1 at +5% FCAN, 1 at -5% FCBN, SV: 380Y/220, 150°C, 93 kVA, Al windings, Elec. Shield, Frame: 916A, uses WS19
Product Name
Eaton Motor drive isolation ventilated transformer
Catalog Number
MD93E67ES
UPC
786680058721
Product Length/Depth
23.42 in
Product Height
48.56 in
Product Width
28.22 in
Product Weight
766 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
916A
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 V
Secondary Voltage
380Y/220 V
Temperature rise
150 °C rise
Volt ampere rating
93 kVA
Special features
Electrostatically shielded
Weathershield
WS19
Ventilated, dry-type DT-3 design improves cooling efficiency and continuous rating, reducing thermal derating and enabling more stable drive operation in hot environments. This translates to higher uptime for conveyor, pump, and mixer applications where motor drives operate near their thermal limits, ultimately lowering maintenance costs. Three-phase 380 V primary to 380Y/220 V secondary configuration supports common industrial power layouts, enabling plug-and-play compatibility with standard VFDs and controllers, which minimizes installation time and wiring complexity. Aluminum windings offer high conductivity with lighter weight than copper equivalents, improving efficiency and simplifying handling during installation. An electrostatic shield reduces EMI and radio noise coupling into drive electronics, lowering the risk of control instability and sensor interference in packaged machinery. Tap changes at +5% FCAN and -5% FCBN provide voltage adjustment to accommodate input fluctuations, improving performance in facilities with variable utility voltages. Frame 916A and WS19 weather shield compatibility expand mounting and environmental options, including outdoor installations, while maintaining safety margins and service life. UL Listed certification supports procurement and compliance programs, reducing supplier risk while aligning with corporate safety mandates.
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FAQs
MD93E67ES uses a three-phase DT-3 dry-type design with frame 916A and WS19 weather shield compatibility. It supports 380 V primary and 380Y/220 V secondary, and offers taps at +5% and -5% to accommodate input variations. For panel mounting, provide adequate clearance and ventilation, connect per local code, and verify voltage tap settings prior to energizing the system.
Key specs include a 93 kVA rating at 60 Hz, three-phase operation, primary 380 V, secondary 380Y/220 V, and a 150 °C temperature rise. It features aluminum windings and an electrostatic shield to minimize EMI. The product is UL Listed and designed for dry-type distribution with drive isolation capabilities.
Yes. The unit is purpose-built as a motor drive isolation transformer with ventilated cooling, designed to protect VFDs and motors in demanding packaging and material handling environments. The DT-3 dry-type design and isolating capabilities help reduce noise, transients, and drive faults, improving overall equipment uptime.
The MD93E67ES carries UL Listed certification, indicating compliance with recognized electrical safety standards. This supports supplier qualification, reduces risk in regulated environments, and aligns with typical industrial procurement requirements for electrical power isolation components.
The ventilated dry-type construction facilitates effective cooling and stable performance, which can extend motor drive life and reduce maintenance frequency. Aluminum windings resist corrosion, and the electrostatic shield minimizes EMI-related wear on control electronics. A one-year warranty from installation or eighteen months from shipment provides added resale confidence and after-sales support.