Eaton V48M48T49CUNV Transformer - UL Listed
Part Number: V48M48T49CUNV
Quick Summary
Eaton V48M48T49CUNV transformer delivers rugged three-phase power for industrial distribution. Many installations struggle with voltage stability, protective enclosures, and maintenance overhead in harsh environments. UL Listed certification supports safety compliance, while the NEMA 3R enclosure provides weather resistance for indoor-outdoor service. Copper windings deliver reliable performance under load, with high efficiency and reduced losses. With 480 V primary and secondary, a 150 kVA rating, and selectable taps, this unit minimizes installation complexity while delivering precise voltage control for controlled equipment. This combination helps facilities meet uptime targets and lowers life-cycle costs through predictable performance and proven Eaton reliability.
Product Information
Extended Description
V48M48T49CUNV 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: 480V, 150°C, 150 kVA, Copper windings, FR918AN, 274B, 60 Hz, NEMA 3R
Product Name
Eaton Totally enclosed non-ventilated transformer
Catalog Number
V48M48T49CUNV
UPC
786680107214
Product Length/Depth
30.68 in
Product Height
62.18 in
Product Width
31.44 in
Product Weight
1791 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
274B
Frequency rating
60 Hz
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
480 V
Temperature rise
150 °C rise
Volt ampere rating
150 kVA
Weathershield
Indoor-Outdoor
Totally enclosed, non-ventilated DT-3E design keeps windings protected in challenging environments, reducing dust and moisture ingress. Feature → Business Impact → Application: This enclosure approach translates to fewer thermal issues and longer service intervals, ideal for distribution panels and machine control cabinets in manufacturing lines. Copper windings improve efficiency and thermal stability, cutting I²R losses and supporting sustained performance under peak loads in high-demand processes. Feature → Business Impact → Application: 150 kVA capacity enables scalable power for growing automation footprints, while 60 Hz compatibility aligns with standard plant deployments and minimizes integration risk in existing electrical rooms. Tap settings of +2.5% FCAN and -2.5% FCBN offer voltage regulation to protect sensitive equipment and stabilize downstream devices in variable supply conditions. Feature → Business Impact → Application: The 480 V to 480 V configuration simplifies interfacing with medium-voltage switchgear and low-voltage distribution networks for a compact footprint. Enclosure and weather protection (NEMA 3R, Weathershield Indoor-Outdoor) deliver reliable service in semi-exposed spaces, reducing corrosion concerns and preserving uptime. Feature → Business Impact → Application: The rugged build supports quick installation in new builds or upgrades, with 274B wiring connection simplifying field terminations and reducing commissioning time. Warranty and UL Listed certification address compliance and maintenance concerns, supporting long-term total cost of ownership reductions and serviceability in industrial environments.
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FAQs
Begin by verifying supply voltage and enclosure suitability (DT-3E,NEMA 3R) for the installation site. Mount the unit in a compliant space and secure with appropriate hardware. Terminate primary and secondary connections using copper conductors, following the 274B wiring connection specification. Use the +2.5% FCAN and -2.5% FCBN taps as needed to dial in voltage. Ensure proper insulation, clearance, and protective devices are in place to meet 60 Hz, three-phase operation and UL safety requirements.
This transformer is ideal for industrial power distribution and machine control panels in manufacturing, process lines, and automation installations. The 150 kVA rating supports scalable loads, while 480 V primary/secondary compatibility simplifies integration with standard switchgear and panelboards. Its indoor-outdoor, weather-ready enclosure makes it versatile for protected outdoor equipment rooms and indoor environments with demanding conditions.
The unit carries UL Listed certification, indicating compliance with essential electrical safety standards. It also features a NEMA 3R enclosure, which provides rain, sleet, and outdoor protection for indoor-outdoor service. Copper windings enhance efficiency and longevity, and the DT-3E fully enclosed design minimizes environmental ingress. These features collectively support reliable operation in variable plant conditions.
Warranty follows Eaton policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. For maintenance, rely on standard transformer practices: periodic thermal checks, insulation resistance testing, and visual inspections of enclosure integrity. The copper windings and robust DT-3E design simplify ongoing servicing, while UL Listed certification aids in regulatory compliance during audits.
Copper windings deliver lower electrical losses and better thermal performance, improving overall efficiency under load. The 150 kVA rating supports current and future expansion without a major equipment swap, reducing total installed cost. The combination of a rugged NEMA 3R enclosure, voltage-tap flexibility, and reliable manufacturer support translates to higher uptime, lower maintenance costs, and faster project commissioning—boosting return on investment over the transformer’s lifetime.