Eaton MD63E92CU Motor isolation transformer - UL Listed
Part Number: MD63E92CU
Quick Summary
MD63E92CU motor drive isolation transformer provides ventilated, dry-type power isolation for three-phase motor drives. Engineers often contend with overheating, space constraints in control panels, and noisy electrical environments that disrupt uptime. UL Listed certification ensures safety compliance for global installations, while the DT-3 design and high-temperature tolerance support demanding industrial conditions. This dry-type, ventilated transformer is a drop-in for Eaton drive systems, delivering reliable power isolation, reduced leakage currents, and easier maintenance. By combining efficient copper windings with a rugged 915D frame, it helps optimize panel footprint and system reliability in motor control centers.
Product Information
Extended Description
MD63E92CU 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, Cu windings, Frame: 915D, uses WS39
Product Name
Eaton Motor drive isolation ventilated transformer
Catalog Number
MD63E92CU
UPC
786685266961
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
Copper
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
460 V
Secondary Voltage
460Y/266 V
Temperature rise
150 °C rise
Volt ampere rating
63 kVA
Weathershield
WS39
Ventilated dry-type design enables efficient cooling and eliminates oil-related maintenance, reducing fire risk and enclosure heating while supporting compact installation in dense motor control environments. Business impact: safer installations and lower ongoing maintenance. Application: ideal for motor drives and variable frequency drive panels where clean power isolation improves drive longevity and performance. Copper windings deliver lower resistive losses, boosting efficiency and reducing energy waste in continuous operation scenarios, which translates to measurable cost savings over the motor drive’s lifespan. The DT-3 design with WS39 weather shield provides robust protection in harsh environments, enabling outdoor or exposed installations with minimal enclosure upgrades. Frame 915D, dimensions of 22 in (L) x 39 in (H) x 29 in (W) and a 600 lb weight simplify rack mounting and retrofit projects. Tap sizing at +5% and -5% (FCAN/FCBN) offers voltage regulation to compensate for supply variations, enhancing drive start-up performance and reducing nuisance trips. The 63 kVA rating supports sizable motor loads at 60 Hz, three-phase operation, with primary 460 V and secondary 460Y/266 V, ensuring broad compatibility with common industrial power systems. The unit’s UL Listed status reinforces compliance and risk management in global facilities, while copper windings and dry-type construction enable long service life with minimal maintenance. This transformer is a reliable component within Eaton-driven automation architectures, contributing to consistent uptime, predictable performance, and lower total cost of ownership.
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FAQs
Install the MD63E92CU in a suitable enclosure or switchgear rack with adequate ventilation. Connect the 460 V primary to the drive input and the 460Y/266 V secondary to the drive controller or motor circuit. Respect the 22 in length, 39 in height, and 29 in width footprint and plan for a 600 lb weight during mounting. Use the +5% and -5% taps to trim input voltage if supply variations occur, and ensure proper labeling and protective earth grounding according to local codes.
The transformer is a 63 kVA, three-phase device operating at 60 Hz with a 460 V primary and a 460Y/266 V secondary. It features copper windings, a DT-3 design, and a 150 °C rise rating. It includes voltage taps at +5% and -5% FCAN/FCBN and uses a 915D frame for robust mounting. The WS39 weather shield adds protection in challenging environments.
Yes. The MD63E92CU provides drive isolation and transient protection for motor drive applications, helping to minimize electrical noise and voltage spikes that can affect VFD performance. Its dry-type, ventilated construction reduces maintenance and risk associated with oil-filled transformers, while the 63 kVA rating covers a broad range of motor loads in typical industrial drives.
The MD63E92CU carries UL Listed certification, ensuring electrical safety compliance for global installations. While other certifications are not listed in the data provided, UL Listed status supports procurement decisions in regulated environments and helps simplify approvals in many regions.
As a dry-type, oil-free transformer with a ventilated enclosure, the MD63E92CU reduces maintenance overhead and spill risks, contributing to lower lifecycle costs. The 63 kVA rating supports reliable motor drive operation, improving uptime and process efficiency. Copper windings and robust construction also indicate long service life, with a one-year warranty typical under Eaton policy, helping stabilize total cost of ownership.