Eaton MD75E95 Motor drive isolation transformer - UL Listed
Part Number: MD75E95
Quick Summary
MD75E95 motor drive isolation transformer delivers clean, isolated power for three-phase motor drives in industrial automation applications. Voltage fluctuations and electrical noise can cause drive trips and degraded performance in demanding plants. UL Listed certification ensures safety and reliability for industrial power distribution. Designed for three-phase, dry-type environments, it supports DT-3 configurations, WS39 shielding, and easy installation within switchgear or control panels. With 75 kVA capacity and a 575 V primary to 460Y/266 V secondary, operators gain predictable performance, reduced downtime, and smoother VFD operation—key for OEMs and maintenance teams. Its aluminum windings and weather-protected design help withstand harsh industrial conditions.
Product Information
Extended Description
MD75E95 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: 460Y/266V, 150°C, 75 kVA, Al windings, Frame: 914D, uses WS39
Product Name
Eaton Motor drive isolation ventilated transformer
Catalog Number
MD75E95
UPC
786680338601
Product Length/Depth
22 in
Product Height
39 in
Product Width
29 in
Product Weight
524 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
575 V
Secondary Voltage
460Y/266 V
Temperature rise
150 °C rise
Volt ampere rating
75 kVA
Weathershield
WS39
Feature → Business Impact → Application: The MD75E95 delivers 75 kVA of power with a 575 V primary and 460Y/266 V secondary, enabling robust drive isolation for three-phase motor controls in manufacturing lines. This translates to improved drive reliability, reduced electrical stress on VFDs, and lower maintenance costs in automated packaging, stamping, or material handling systems. Application: Install in switchgear or control panels to ensure clean power conditioning for variable frequency drives used in conveyors or robotic cells, delivering consistent torque and uptime. Feature → Business Impact → Application: DT-3 dry-type design with ventilated cooling enhances heat dissipation, supporting sustained operation in high-load scenarios. Application: Suitable for factory floors where ambient heat and duty cycle demand reliable thermal management. Feature → Business Impact → Application: WS39 weathershield and aluminum windings improve durability and corrosion resistance. Application: Ideal for environments with dust, humidity, or outdoor-mounted equipment near equipment bays. Feature → Business Impact → Application: Tap changes (+5% FCAN, -5% FCBN) provide voltage adjustment to match system tolerances, reducing harmonics and protecting downstream components. Application: Use in plants with variable incoming voltage to stabilize voltage to motors and drives. Feature → Business Impact → Application: Frame 914D and 22 in L x 39 in H x 29 in W footprint enable mounting in standard electrical enclosures without excessive rack space. Application: Retrofit projects or new lines where panel real estate is limited. Feature → Business Impact → Application: UL ListedCertification demonstrates safety compliance, facilitating procurement approvals and insurance clearance. Application: Specified for regulated industrial environments requiring recognized safety marks. The MD75E95’s combination of high efficiency, rugged construction, and 60 Hz compatibility supports improved energy management, reduces lifecycle costs, and improves overall system reliability in automated manufacturing.
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FAQs
Install per the DT-3 dry-type design within a ventilated enclosure. Connect the primary delta 575 V to the incoming three-phase supply and the secondary 460Y/266 V to the drive input, using the +5% and -5% taps if voltage tolerances require adjustment. Ensure proper grounding, secure mounting on the 914D frame, and verify cooling airflow to maintain the 150 °C rise rating under load.
The MD75E95 provides 75 kVA with a 60 Hz three-phase configuration, 575 V primary, and 460Y/266 V secondary. Aluminum windings and a 150 °C rise rating support high-load operation while maintaining insulation integrity. These specs reduce drive voltage stress, minimize harmonics impact, and improve VFD stability for consistent motor control in manufacturing lines.
Yes. The unit employs a ventilated, dry-type DT-3 design and WS39 weather shield, with aluminum windings for durability. While not explicitly IP-rated in the data, the WS39 shield and ventilated construction are intended for industrial panels and equipment bays where dust, humidity, and heat are present, contributing to longer service life and lower maintenance.
The MD75E95 carries UL Listed certification, indicating compliance with recognized safety standards for electrical equipment. This simplifies supplier qualification, supports regulatory approvals, and helps ensure safe operation within industrial control environments when integrating with VFDs and distribution panels.
Schedule regular inspections of the cooling paths and ventilation to prevent overheating, and verify connections at the primary and secondary terminations. Leverage the 75 kVA rating with proper derating in high-ambient conditions. The 1-year warranty (or 18 months from shipment) provides initial protection; plan for routine cleaning and periodic thermal imaging to sustain performance and minimize downtime.