Eaton MD75E90 Motor drive isolation transformer - UL Listed
Part Number: MD75E90
Quick Summary
The Eaton MD75E90 motor drive isolation transformer provides clean, isolated power for drive systems in industrial plants. Engineers frequently confront voltage transients and electrical noise that trigger motor trips and unplanned downtime. Key certifications include UL Listed; check the datasheet for CE, SIL, or IP ratings relevant to your regional requirements. Long-term business value comes from reliable drive isolation, a compact installation footprint, and proven performance in 60 Hz, three-phase networks. Designed for DT-3 dry-type distribution with aluminum windings and a 75 kVA rating, it supports scalable drive architectures and straightforward commissioning in modern automation environments.
Product Information
Extended Description
MD75E90 Eaton: Drive Isolation Transformer, Ventilated, Dry Type Distribution, DT-3, Three-phase, PV: 230 delta, Taps: 1 at +5% FCAN, 1 at -5% FCBN, SV: 575Y/332V, 150°C, 75 kVA, Al windings, Frame: 914D, uses WS39
Product Name
Eaton Motor drive isolation ventilated transformer
Catalog Number
MD75E90
UPC
786680330995
Product Length/Depth
22 in
Product Height
39 in
Product Width
29 in
Product Weight
480 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
230 V
Secondary Voltage
575Y/332 V
Temperature rise
150 °C rise
Volt ampere rating
75 kVA
Weathershield
WS39
Drive isolation with a 75 kVA three-phase rating delivers clean power to motor drives, reducing electrical stress and EMI, which translates to longer motor life and fewer trips in conveyors, pumps, and material-handling lines. This translates to measurable uptime and productivity gains for critical manufacturing processes. The DT-3 dry-type, ventilated design with WS39 protection ensures effective cooling in moderate-to-hot plant environments, minimizing deratings and enabling reliable operation in open-floor layouts and confined electrical rooms. Dual taps at +5% and -5% FCAN/FCBN provide voltage regulation under load swings, improving drive performance, reducing nuisance shutdowns, and supporting stable control in long cable runs. Aluminum windings offer lightweight robustness, corrosion resistance, and cost efficiency, simplifying installation and service in OEM installations. The 914D frame integrates with common mounting footprints, easing retrofit and expansion projects. UL Listed certification supports procurement compliance and reduces risk in regulated environments, while the rugged enclosure and 75 kVA rating enable scalable automation architectures. The MD75E90’s dimensions and weight (22 in depth, 39 in height, 29 in width; 480 lb) inform shipping, crane planning, and on-site positioning for quick installations in new or retrofit facilities.
Get a Quick Quote for a Eaton MD75E90
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton MD75E90?
Enquire Now
FAQs
MD75E90 is a three-phase dry-type drive isolation transformer rated at 75 kVA with a 230 V primary and 575Y/332 V secondary. For installation, align with the 914D frame mounting, ensure adequate ventilation, and connect primary to 230 V three-phase supply. Use the WS39 weather shield where external protection is required. Verify tap settings at +5% and -5% for voltage regulation under load variations and confirm compatibility with the specific VFD or drive electronics used in your application.
MD75E90 provides drive isolation to suppress electrical noise and transient spikes, reducing motor trips and downtime. It offers 75 kVA capacity, 60 Hz operation, and a 150 °C rise rating with aluminum windings for efficient heat dissipation. The dual taps (+5% FCAN, -5% FCBN) support voltage stability under fluctuating loads, improving drive performance and motor life in demanding industries such as packaging, printing, and material handling.
Yes. The MD75E90 is designed for drive isolation in three-phase motor drives used in conveyors, robotics, and automated machines. Its DT-3 dry-type construction, WS39 protection, and 230 V to 575Y/332 V output support reliable control power for VFDs and drive electronics, enabling stable operation, reduced EMI, and improved control accuracy in continuous production lines.
MD75E90 carries UL Listed certification as documented in the product data. If CE, SIL, or IP ratings are required for your regional standards, please consult the Eaton datasheet or contact Eaton support for the latest certification matrix and regional approvals relevant to your installation site.
The transformer’s dry-type design reduces oil-related maintenance, and aluminum windings resist corrosion for longer service intervals. By delivering cleaner drive power and reducing motor trips, it lowers downtime and maintenance costs while extending motor life. Its rugged 914D frame and WS39 protection simplify installation, enabling faster ROI through improved uptime and predictable performance across multiple shifts.