Eaton MD51E96 Motor drive isolation transformer - UL Listed
Part Number: MD51E96
Quick Summary
The Eaton MD51E96 motor drive isolation transformer provides clean, isolated power for drive systems in industrial plants. Voltage fluctuations and electrical noise can cause drive faults and unplanned downtime; this unit helps stabilize the supply. UL Listed safety certification provides compliance for routine installation in distribution panels and control cabinets. With 51 kVA rated capacity, 575 V primary and 575Y/332 V secondary, it supports reliable, scalable automation. This design also features DT-3, aluminum windings, and WS39 ventilation for durable, dry-type operation in hot conditions. Taps are available at +5% FCAN and -5% FCBN to fine-tune voltage under load. Its 39 inch height, 29 inch width, 22 inch depth and 471 lb weight support compact installation in dedicated equipment rooms.
Product Information
Extended Description
MD51E96 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: 575Y/332V, 150°C, 51 kVA, Al windings, Frame: 914D, uses WS39
Product Name
Eaton Motor drive isolation ventilated transformer
Catalog Number
MD51E96
UPC
786680338502
Product Length/Depth
22 in
Product Height
39 in
Product Width
29 in
Product Weight
471 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
575Y/332 V
Temperature rise
150 °C rise
Volt ampere rating
51 kVA
Weathershield
WS39
Feature: Drive isolation transformer with dry-type DT-3 design. Business impact: isolates motor drives from supply transients, reducing EMI and improving drive uptime. Application: three-phase industrial drive systems in manufacturing lines. Feature: 51 kVA power rating with 575 V primary and 575Y/332 V secondary. Business impact: supports scalable automation and consistent motor performance, enabling predictable maintenance windows. Application: CNCs, conveyors, and robotics where stable voltage is critical. Feature: Ventilated enclosure with WS39 weathershield and aluminum windings. Business impact: enhances cooling and durability in harsh plant environments, lowering cooling costs and extending service life. Application: installations in hot or dust-prone environments. Feature: Tap changes at +5% FCAN and -5% FCBN. Business impact: minimizes voltage drift under load, reducing motor stress and energy waste. Application: facilities with variable line voltage and fluctuating loads. Feature: Frame 914D and dimensions 22 in x 29 in x 39 in with a weight of 471 lb. Business impact: clear installation footprint and manageable handling for panel builders and technicians. Application: cabinet or skid-mounted deployments with standard rigging. Feature: UL Listed certification. Business impact: accelerates procurement and ensures compliance with safety standards for controls and power distribution. Application: panel builders and electrical distributors seeking certified equipment.
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FAQs
Yes. The transformer uses a 914D frame and a ventilated dry-type design, with dimensions of 22 in (depth) x 29 in (width) x 39 in (height) and a weight of 471 lb, making it suitable for standard electrical enclosures and panel layouts.
It is a three-phase transformer with a 575 V primary, 575Y/332 V secondary, 60 Hz operation, and a 51 kVA volt-ampere rating. Tap changers are provided at +5% FCAN and -5% FCBN to adjust voltage under load.
Yes. The unit is UL Listed, providing a recognized safety certification for installation in distribution and control environments.
Ideal for drive isolation in three-phase motor systems found in automation, packaging, conveyors, and CNC-driven equipment, where stable voltage and reduced transients improve drive reliability and reduce downtime.
The product adheres to Eaton’s warranty policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first, with durable aluminum windings and WS39 protection for long-term service in demanding plants.