Eaton V48M47T49CUNV Transformer - UL Listed 3-Phase
Part Number: V48M47T49CUNV
Quick Summary
Eaton V48M47T49CUNV transformer provides reliable three‑phase power conversion for industrial control panels and distribution networks. It is designed for demanding environments where uptime and safety matter, helping you cut maintenance cycles and unexpected outages. The unit features a totally enclosed non‑ventilated DT-3E design with a NEMA 3R enclosure, UL Listed certification, and a 150°C insulation rise to withstand heat and moisture. With 150 kVA capacity, copper windings, and adjustable taps, it supports voltage regulation and load growth. This model aligns with rugged power distribution needs in manufacturing and process facilities while supporting indoor‑outdoor installations and easy field service.
Product Information
Extended Description
V48M47T49CUNV Eaton: Totally enclosed non-ventilated transformer, DT-3E, Three-phase, Primary voltage: 480V, Taps: 2 at +2.5% FCAN, 4 at -2.5% FCBN, Secondary voltage: 480Y/277V, 150°C, 150 kVA, Copper windings, FR918AN, 275A, 60 Hz, NEMA 3R
Product Name
Eaton Totally enclosed non-ventilated transformer
Catalog Number
V48M47T49CUNV
UPC
786680107252
Product Length/Depth
30.68 in
Product Height
62.18 in
Product Width
31.44 in
Product Weight
1982 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
Copper
Design
DT-3E
Enclosure
NEMA 3R
Frame
918AN
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Type
Totally enclosed, non-ventilated transformer
Wiring connection
275A
Frequency rating
60 Hz
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
480Y/277 V
Temperature rise
150 °C rise
Volt ampere rating
150 kVA
Weathershield
Indoor-Outdoor
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton Specification Sheet - V48M47T49CUNV
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: Three‑phase DT‑3E design with a totally enclosed, non‑ventilated enclosure protects windings from environmental exposure and reduces maintenance. Business Impact: Lower downtime, simplified cooling, and longer service intervals translate to higher plant productivity. Application: Ideal for factory floor motor feeders and control panels where reliability is critical. Feature: 150 kVA rating with primary 480 V and secondary 480Y/277 V supports standard industrial power distribution. Business Impact: Streamlined supply for lighting, drives, and controls across mixed voltages, minimizing explicit transformer banks. Application: Medium‑to‑large manufacturing lines and process installations. Feature: Tap settings of 2 at +2.5% and 4 at −2.5% enable voltage regulation under feeder or supply fluctuations. Business Impact: Tight voltage control reduces equipment stress and preserves performance. Application: Facilities with fluctuating utility voltages or long feeder runs. Feature: Copper windings and robust insulation (150°C rise) enhance efficiency and thermal capability. Business Impact: Lower copper loss, improved heat management, and extended life under continuous operation. Application: High‑demand press lines, presses, and stamping cells. Feature: NEMA 3R indoor‑outdoor enclosure and Weathershield design provide weather resistance and durable outdoor deployment. Business Impact: Versatile installation with fewer enclosure failures in harsh environments. Application: Outdoor transformer vaults, loading docks, and unconditioned spaces. Feature: Heavy‑duty frame 918AN and 275A winding connections ensure solid performance in demanding plants. Business Impact: Consistent startup current handling and dependable service under peak loads. Application: Large facilities with peak motor starts and high inrush conditions.
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FAQs
For installation, confirm the device is mounted in a location compliant with NEMA 3R indoor-outdoor protection and ensure proper clearance for servicing. The unit's 30.68 in length, 62.18 in height, and 31.44 in width require a reinforced support surface and appropriate lifting equipment due to its 1982 lb weight. Plan for grounding, wiring clearance, and venting restrictions consistent with its totally enclosed design.
The transformer provides taps at +2.5% FCAN and −2.5% FCBN, enabling fine voltage adjustment to accommodate supply fluctuations and voltage drop along feeders. This capability helps maintain consistent secondary voltage (480Y/277 V) for sensitive loads and lighting while reducing nuisance tripping and equipment wear.
Yes. The V48M47T49CUNV uses a DT‑3E design in a NEMA 3R enclosure, categorized as indoor-outdoor with weather shielding. This makes it suitable for outdoor installations such as equipment yards and loading docks when properly mounted and protected from excessive exposure, offering reliable service in varied environments.
The V48M47T49CUNV is UL Listed, confirming compliance with safety standards for electrical equipment. It also features a NEMA 3R enclosure suitable for indoor-outdoor use, and a copper winding design with a 150°C insulation rise, reflecting robust thermal performance. These attributes help meet industrial procurement requirements and regulatory expectations for power distribution equipment.
Maintenance is typically lower due to the totally enclosed, non-ventilated DT-3E design, reducing dust and moisture ingress. The copper windings and 150 kVA rating support high reliability and efficient operation, potentially reducing energy losses and downtime costs. For ROI, expect improved uptime on critical loads, fewer filter/ventilation issues, and a longer service life under peak manufacturing demand.