Eaton MD27D85NV Three-Phase Dry Transformer - UL Listed
Part Number: MD27D85NV
Quick Summary
Eaton MD27D85NV is a three-phase drive-isolation transformer designed for rugged industrial power distribution. In real-world upgrades, heat, space, and regulatory compliance often complicate motor-drive and panel-system retrofits. This unit is UL Listed and built as a dry-type transformer for safe operation in harsh environments. With a 27 kVA rating, aluminum windings, and a DT-3 drive-isolation design, it delivers precise voltage matching via taps at +2.5% and -2.5% and enhances overall efficiency. It operates at 60 Hz with a 208 V primary and 230Y/133 V secondary, compatible with common control systems and variable-frequency drives. The 22 in depth, 29 in width, and 39.18 in height frame (914DN) supports easy installation and reliable service life.
Product Information
Extended Description
MD27D85NV Eaton: Drive Isolation Transformer, Ventilated, Dry Type Distribution, DT-3, Three-phase, PV: 208V, Taps: 2 at +2.5% FCAN, 2 at -2.5% FCBN, SV: 230Y/133V, 150°C, 27 kVA, Al windings, Frame: 914DN
Product Name
Eaton Totally enclosed non-ventilated transformer
Catalog Number
MD27D85NV
UPC
786680087189
Product Length/Depth
22 in
Product Height
39.18 in
Product Width
29 in
Product Weight
509 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
Catalog Notes
Totally enclosed non-ventilated DS-3 or DT-3
Coil material
Aluminum
Design
DT-3
Frame
914DN
Tap size
2 at +2.5% FCAN, 2 at -2.5% FCBN
Type
Dry Type Distribution, Drive Isolation Transformer
Frequency rating
60 Hz
Phase
Three-phase
Primary voltage
208 V
Secondary Voltage
230Y/133 V
Temperature rise
150 °C rise
Volt ampere rating
27 kVA
Feature: Drive isolation transformer design → Business Impact: Reduces motor-drive interference and protects sensitive control electronics, lowering downtime and warranty exposure → Application: Motor drives and control panels in manufacturing lines. Feature: Dry-type, DT-3, 27 kVA rating → Business Impact: Safer, maintenance-light operation with efficient energy transfer and reduced cooling requirements → Application: Panel distributions and distribution boards in harsh environments. Feature: Aluminum coil windings → Business Impact: Lower weight and improved heat dissipation, enabling simpler handling and faster installation → Application: Retrofit projects with space constraints. Feature: Tap changes (+2.5% FCAN and -2.5% FCBN) → Business Impact: Voltage compensation for line drop or supply variability, preserving equipment performance → Application: Plants with long feeder runs or variable utility voltage. Feature: Frame 914DN, dimensions 22 in L × 29 in W × 39.18 in H → Business Impact: Predictable footprint that fits tight switchgear or enclosures, reducing integration risk → Application: Retrofit and new-build panel installations in compact spaces. Feature: 60 Hz, primary 208 V, secondary 230Y/133 V → Business Impact: Immediate compatibility with common industrial power rails and motor drives, accelerating procurement and commissioning → Application: Standard industrial systems and multi-voltage control panels. Feature: UL Listed certification → Business Impact: Streamlined compliance verification and reduced QA checks, aiding regulatory acceptance in multiple markets → Application: Industrial facilities prioritizing formal safety approvals.
Get a Quick Quote for a Eaton MD27D85NV
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton MD27D85NV?
Enquire Now
FAQs
MD27D85NV requires a 914DN frame and space to accommodate 22 in depth, 29 in width, and 39.18 in height. Plan for proper clearance, secure mounting in a compliant enclosure, and room for heat dissipation. Weight is 509 lb, so use appropriate lifting equipment and follow standard lockout/tagout procedures during installation.
The unit is a 27 kVA, three-phase transformer with a 208 V primary and 230Y/133 V secondary, designed for 60 Hz operation. Aluminum windings and a DT-3 dry-type design offer efficient power transfer and robust isolation. Tap settings at ±2.5% allow compensation for line voltage variations, improving motor performance and control stability.
Yes. As a drive isolation transformer with DT-3 dry-type construction, it reduces electrical noise, limits fault propagation, and protects sensitive drives and controls. Ensure proper tap settings and adequate ventilation within the enclosure to maintain performance under dynamic loading.
MD27D85NV carries UL Listed certification, supporting safety compliance for dry-type transformers in industrial applications. For regional or sector-specific requirements (such as CE marking), verify applicable approvals via Eaton datasheets or regional specifications before deployment.
Being a dry-type transformer with aluminum windings, it offers low maintenance relative to oil-filled units and supports long service life in harsh environments. The 27 kVA rating accommodates varied loads, potentially reducing equipment upgrades. Warranty follows Eaton policy (one year from installation or 18 months from shipment), reinforcing downstream support and reliability.