Eaton V39M28E12XZZ Open-core Transformer - UL Recognized
Part Number: V39M28E12XZZ
Quick Summary
The Eaton V39M28E12XZZ Open-core transformer provides reliable three-phase power distribution for industrial facilities. Engineers often face space, cooling, and serviceability challenges when expanding motor control centers, and bulky, oil-filled units can bottleneck projects. This model addresses those needs with a compact open-core, ventilated design, aluminum windings, and a 150°C temperature rise, plus an electrostatic shield to reduce EMI. It carries UL Recognized certification and is built for general-purpose distribution in harsh environments. Key specifications include 112.5 kVA, a 400 V primary, and a 208Y/120 V secondary. The combination supports efficient, scalable distributions while aligning with Eaton’s warranty and service ecosystem, delivering dependable performance and long-term business value.
Product Information
Extended Description
V39M28E12XZZ Eaton: Eaton General-Purpose Transformer, Dry Type Distribution, DT-3, Three-phase, PV: 400V, Taps: 2 at +2.5% FCAN, 4 at -2.5% FCBN, SV: 208Y/120V, 150°C, 112.5 kVA, Al windings , Elec. Shield, Frame: 916AC
Product Name
Eaton Open core-coil ventilated transformer
Catalog Number
V39M28E12XZZ
UPC
786680048913
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
830 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 Recognized
Catalog Notes
Open type core and coil assembly
Coil material
Aluminum
Design
DT-3
Frame
916AC
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Type
Dry Type Distribution Transformer
Frequency rating
50-60 Hz
Kva Rating
112.5 kVA
Phase
Three-phase
Primary voltage
400 V
Secondary Voltage
208Y/120 V
Temperature rise
150 °C rise
Special features
Electrostatically shielded
Open-core, ventilated construction enables efficient cooling and easier maintenance, reducing cooling loads and minimizing downtime during servicing. This translates to lower operating costs and faster turnarounds on critical projects where space is restricted and access is limited. The transformer is a three-phase, dry-type distribution unit rated at 112.5 kVA with a 400 V primary and 208Y/120 V secondary, simplifying integration with standard plant electrical trunks and control panels while supporting reliable automation. Voltage taps—two at +2.5% and four at -2.5%—offer practical regulation to compensate for line drop and loading variations, improving PLC and drive performance without swapping hardware. An electrostatic shield reduces EMI, safeguarding nearby sensors and communication lines in noisy plant environments. Aluminum windings pose lower cooling burdens and corrosion resistance, while the 916AC frame and 830 lb weight support rugged installation in demanding facilities. The UL Recognized certification reinforces compliance confidence across global sites.
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FAQs
Install on a level, vibration-free base that can support the 830 lb unit. Use the 916AC frame for mounting and provide adequate clearance for ventilation. Connect a 400 V three-phase supply and route the 208Y/120 V secondary circuits per standard wiring practices. Respect the voltage taps: +2.5% FCAN and -2.5% FCBN during commissioning and load changes, following UL guidelines.
Yes. The V39M28E12XZZ is designed for 400 V primary input and 208Y/120 V secondary outputs, suitable for feeding standard distribution panels and motor control centers. Plan for the transformer’s weight during installation, ensure adequate panel feeder sizing, and verify enclosure compatibility and ventilation to maintain the 150°C rise rating under load.
Key specs include a 112.5 kVA rating, three-phase configuration, 400 V primary, and 208Y/120 V secondary, with a 50–60 Hz operating range and a 150°C rise. The taps include two at +2.5% FCAN and four at -2.5% FCBN, providing practical voltage adjustment for varied supply conditions without additional hardware.
This model carries UL Recognized certification, reflecting adherence to recognized safety standards for general-purpose distribution equipment. The datasheet notes an open-type core and coil assembly configuration. For regional compliance beyond UL, consult the Eaton datasheet and local regulatory requirements.
As a dry-type transformer with aluminum windings and an EMI-shielded design, it offers low fire risk and reduced maintenance compared with oil-filled units. The 150°C rise rating supports heavy workloads, while the UL listing and Eaton warranty provide risk mitigation. Expect lower downtime and predictable performance, contributing to favorable total cost of ownership in industrial power distributions.