Eaton MD63E92 Drive Isolation Transformer - UL Listed
Part Number: MD63E92
Quick Summary
The Eaton MD63E92 Drive Isolation Transformer protects motor drives in industrial power systems. In practice, engineers wrestle with voltage spikes, nuisance trips, and uneven loading that disrupt production; this unit helps mitigate those issues with a robust dry-type DT-3 design. UL Listed certification confirms safety and reliability; CE and IP ratings are not listed for this model, while its DT-3 dry-type construction supports safe, compact installation in demanding environments. With a 63 kVA rating and 460 V/460Y-266 V outputs, it also aligns with typical motor-drive architectures while enabling efficient, compliant deployment across sites.
Product Information
Extended Description
MD63E92 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: 460Y/266V, 150°C, 63 kVA, Al windings, Frame: 914D, uses WS39
Product Name
Eaton Motor drive isolation ventilated transformer
Catalog Number
MD63E92
UPC
786680331770
Product Length/Depth
22 in
Product Height
39 in
Product Width
29 in
Product Weight
535 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
460 V
Secondary Voltage
460Y/266 V
Temperature rise
150 °C rise
Volt ampere rating
63 kVA
Weathershield
WS39
Feature → Drive isolation transformer reduces electrical noise and transients on motor drives, boosting reliability and protecting VFDs; Application → Ideal for motor drive panels and variable frequency drive systems, improving uptime and reducing nuisance trips. Feature → DT-3 dry-type design with aluminum windings enhances thermal management and safety while maintaining high efficiency; Application → Suitable for indoor or ventilated enclosures in harsh industrial settings, supporting compact layouts. Feature → 63 kVA three-phase rating at 60 Hz with primary 460 V and secondary 460Y/266 V provides a robust power source for multiple loads; Application → Enables centralized distribution to drive groups without oversizing. Feature → Voltage taps at +5% and -5% FCAN/FCBN allow precise voltage regulation; Application → Maintains drive performance amid supply variations and site harmonics. Feature → WS39 weather shield and ventilated frame 914D offer rugged enclosure protection; Application → Enables outdoor or semi-exposed installations with reliable cooling. Feature → UL Listed certification ensures procurement alignment and regulatory compliance; Application → Streamlines approval processes for industrial control panels and replacement projects.
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FAQs
Install with sufficient ventilation and service access: allocate side clearances for cooling, a minimum overhead clearance for maintenance, and space to access connections. The unit dimensions are 22 in depth, 29 in width, and 39 in height, with a weight around 535 lb. Mounting should respect frame 914D compatibility and WS39 enclosure requirements to ensure reliable airflow.
Yes. The MD63E92 is specified for a three-phase 460 V primary (delta) and a 460Y/266 V secondary. This configuration supports motor drives and VFDs, delivering a stable, balanced output that reduces harmonics and improves drive performance in distribution panels.
The transformer provides taps at +5% FCAN and -5% FCBN to accommodate supply variations. This feature maintains output voltage within tight tolerances for drive electronics, minimizing voltage-related disturbances and ensuring consistent motor performance in fluctuating electrical environments.
MD63E92 carries UL Listed certification, confirming electrical safety compliance. Other certifications such as CE, IP, or SIL are not listed for this model. When procuring, verify with the supplier whether additional regional certifications are required for your facility’s regulatory program.
Maintenance focuses on ensuring proper ventilation and enclosure cleanliness. Regularly inspect the WS39 weather shield, verify the aluminum windings, and confirm taps remain secure. Monitor load to prevent excessive temperature rise and perform periodic thermal checks to sustain reliability of this 63 kVA, three-phase transformer in demanding installations.