Eaton MD93E92BES Motor drive isolation transformer - UL Listed
Part Number: MD93E92BES
Quick Summary
Motor drive isolation transformer from Eaton provides clean, isolated power for motor drives in industrial automation. With increasing electrical noise and fault currents threatening uptime, engineers need reliable isolation to prevent drive faults and premature equipment wear. This product is UL Listed and designed as a dry-type distribution DT-3 transformer with electrostatically shielded windings and WS19 weather shield, supporting safe, long-lasting operation in challenging plant environments. Its 93 kVA rating, 60 Hz service, and dual-secondary capability enable scalable power conditioning for multiple drive axes, improving efficiency and reducing downtime. By combining robust protection with straightforward installation, this transformer helps you meet safety standards while optimizing drive reliability and overall system performance.
Product Information
Extended Description
MD93E92BES 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, 80°C, 93 kVA, Al windings, Elec. Shield, Frame: 916A, uses WS19
Product Name
Eaton Motor drive isolation ventilated transformer
Catalog Number
MD93E92BES
UPC
786680060878
Product Length/Depth
23.42 in
Product Height
48.56 in
Product Width
28.22 in
Product Weight
909 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
460 V
Secondary Voltage
460Y/266 V
Temperature rise
80 °C rise
Volt ampere rating
93 kVA
Special features
Electrostatically shielded
Weathershield
WS19
93 kVA three-phase dry-type distribution transformer with primary 460 V delta and secondary 460Y/266 V enables robust motor drive conditioning for multiple axes, delivering consistent voltage and isolation to reduce drive faults and downtime. Business impact: improved uptime and predictable performance in automation lines; application: CNCs, conveyors, and packaging systems that demand stable power for drives. This unit uses aluminum windings and an electrostatic shield, which lowers magnetic leakage and EMI, yielding measurable improvements in drive reliability and signal integrity in noisy factory environments. Application insight: install in ventilated enclosures with WS19 weather shield for outdoor or damp areas, maintaining performance while simplifying compliance with safety standards. Tap capability of +5% and -5% supports voltage compensation in sites with sagging supply, reducing nuisance tripping and startup voltage stress. Frame 916A provides a rugged mounting footprint and compatibility with standard industrial racks, enabling faster integration and serviceability. Overall, UL Listed certification and Eaton warranty support ongoing compliance and durable ownership, delivering lower total cost of ownership over the life of the installation.
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FAQs
Plan for proper ventilation and clearance around the ventilated transformer, ensure WS19 weather shield is suitable for the site, and mount on a rigid surface using the 916A frame. Verify 460 V delta primary and 460Y/266 V secondary connections, and confirm tap selection (+5% or -5%) aligns with site voltage conditions.
The transformer uses a 460 V primary (delta) and delivers a 460Y/266 V secondary. It includes taps at +5% FCAN and -5% FCBN to compensate for voltage fluctuations, enabling smoother drive operation and reduced nuisance tripping in variable supply environments.
Yes. As a three-phase dry-type drive isolation transformer with a 93 kVA rating, aluminum windings, and electromagnetic shielding, it provides clean, isolated power ideal for motor drives, reducing electrical noise and protecting sensitive drive electronics in automation and packaging lines.
This transformer carries UL Listed certification, confirming compliance with safety standards for electrical equipment. The DT-3 dry-type design and electrostatic shielding further support regulatory alignment for industrial installations.
Eaton offers a standard warranty under policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. This provides protection against manufacturing defects and ensures access to Eaton support and service if issues arise during the warranty period.