Eaton MD40E95 Motor drive isolation ventilated transformer - UL Listed
Part Number: MD40E95
Quick Summary
The MD40E95 motor drive isolation ventilated transformer provides clean, isolated power for motor drives in industrial automation. In control panels, voltage transients, heat buildup, and space constraints can drive downtime and maintenance costs. This UL Listed, dry-type transformer uses a DT-3 design with aluminum windings, 150°C rise, and WS38 weather shield to meet demanding environments. Its three-phase 40 kVA rating and 575 V primary with a 460Y/266 V secondary support reliable drive isolation and flexible wiring. By combining robust protection with straightforward installation, it delivers efficiency gains, safer operation, and lower lifecycle costs for OEMs and integrators. Engineers appreciate the compact footprint and compatibility with WS38 weather shield for challenging plant layouts.
Product Information
Extended Description
MD40E95 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, 40 kVA, Al windings, Frame: 912B, uses WS38
Product Name
Eaton Motor drive isolation ventilated transformer
Catalog Number
MD40E95
UPC
786680338427
Product Length/Depth
16.5 in
Product Height
30 in
Product Width
23 in
Product Weight
310 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
912B
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
40 kVA
Weathershield
WS38
Feature DT-3 dry-type design with aluminum windings delivers reliable, low-heat power transformation. Business Impact Reduced cooling requirements and insulation longevity, lowering maintenance and operating costs. Application Ideal for motor drive isolation within compact control panels in automated lines. Feature Ventilated construction with WS38 weather shield enhances environmental protection. Business Impact Better protection against moisture and dust ingress, extending service life in harsh facilities. Application Suitable for outdoor locations or damp plant areas where enclosure integrity matters. Feature Tap capability with 1 at +5% and 1 at -5% FCAN/FCBN supports voltage regulation. Business Impact Improves drive performance by accommodating supply variations, reducing voltage stress on drives. Application Useful in plants with uneven mains without sacrificing control reliability. Feature 575 V primary and 460Y/266 V secondary (three-phase, 60 Hz) enables standard integration with common motor drives. Business Impact Simplifies wiring schemes and inventory, reducing installation time and mis-wiring risk. Application Fits typical EU and US industrial drive architectures. Feature Frame 912B with 310 lb weight provides sturdy mechanical support. Business Impact Facilitates safe handling and installation within standard electrical cabinets. Application Enables straightforward cabinet mounting and service access. Feature 150°C rise capability supports operation in elevated temperature environments. Business Impact Maintains performance in hot factories, reducing derating and extending life. Application Suitable for high-heat production lines in manufacturing settings. Feature UL Listed certification confirms safety compliance. Business Impact Eases procurement and regulatory acceptance, smoothing qualification for regulated industries. Application Widely acceptable for industrial automation projects demanding safety certification.
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FAQs
Yes. The MD40E95 is a three-phase 40 kVA transformer with a 575 V primary and 460Y/266 V secondary, designed for motor drive isolation inside standard control panels. Its DT-3 dry-type construction, aluminum windings, and WS38 weather shield support easy mounting in typical enclosures while maintaining safety margins and straightforward wiring.
Key specs include three-phase operation at 60 Hz, 40 kVA rating, primary voltage of 575 V, secondary voltage of 460Y/266 V, and voltage taps at +5% FCAN and -5% FCBN. The unit is a ventilated, dry-type transformer with aluminum windings and 150°C rise, suitable for drive isolation in demanding environments.
MD40E95 is ideal for motor drive isolation in machine control panels, distribution boards, and automation cells where transient suppression, thermal management, and safe separation of drive electronics from the power supply are critical. Its ventilation and WS38 weather shield enable reliable operation in hot or harsh environments.
MD40E95 carries UL Listed certification, signaling compliance with applicable safety standards for industrial transformers. This simplifies supplier qualification, regulatory audits, and procurement processes in regulated industries, while the dry-type DT-3 design supports safety and reliability in panel installations.
As a dry-type transformer with aluminum windings and a robust WS38 shield, MD40E95 requires minimal routine maintenance beyond periodic inspection and connection checks. The 150°C rise rating enables operation in hotter facilities without derating, contributing to longer service life, reduced downtime, and lower total cost of ownership in motor drive applications.