Eaton V48M28B49NV Dry-Type Transformer - UL Listed
Part Number: V48M28B49NV
Quick Summary
The Eaton V48M28B49NV Dry-Type Transformer provides reliable three-phase power conversion from 480 V to 208Y/120 V for industrial facilities. Finding space and managing heat in compact switchgear can be a daily challenge, especially with older vented transformers that require extra cooling and maintenance. UL Listed certification underpins safety and compliance, while the aluminum windings and an 80 °C rise rating help ensure durability and long service life. With a DT-3 design and a 150 kVA rating, this transformer fits standard plant footprints and supports scalable distribution without compromising efficiency.
Product Information
Extended Description
V48M28B49NV Eaton: Eaton General-Purpose Transformer, Dry Type Distribution, DT-3, Three-phase, PV: 480V, Taps: 2 at +2.5% FCAN, 4 at -2.5% FCBN, SV: 208Y/120V, 80°C, 150 kVA, Al windings , Frame: 919N
Product Name
Eaton Totally enclosed non-ventilated transformer
Catalog Number
V48M28B49NV
UPC
786680095405
Product Length/Depth
36.23 in
Product Height
75 in
Product Width
44.21 in
Product Weight
2951 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
Coil material
Aluminum
Design
DT-3
Frame
919N
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Type
Dry Type Distribution Transformer
Frequency rating
60 Hz
Kva Rating
150 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
80 °C rise
Feature → Business Impact → Application: Three-phase 150 kVA rating delivers robust power handling for medium-scale facilities, enabling efficient distribution of critical loads without over-sizing equipment or increasing footprint. This translates to lower total cost of ownership and reduced heat generation in confined spaces, ideal for manufacturing lines and data centers that demand reliable power continuity. Feature → Business Impact → Application: Dry-type, aluminum windings minimize thermal losses and simplify cooling requirements, improving energy efficiency and reducing maintenance intervals. Application includes indoor electrical rooms and switchgear where clean air and low moisture risk are priorities. Feature → Business Impact → Application: DT-3 design with a 480 V primary and 208Y/120 V secondary enables straightforward integration with existing 480 V feeders and downstream 120 V circuits, supporting modular expansion and phased upgrades. Feature → Business Impact → Application: Totally enclosed non-ventilated construction reduces dust ingress and fire risk in harsh environments, offering safer operation in plants with particulate exposure and limited ventilation. Feature → Business Impact → Application: Tap settings—2 at +2.5% and 4 at -2.5%—facilitate fine voltage adjustments to accommodate small fluctuations in supply and load, enhancing regulator stability and protecting downstream equipment. Feature → Business Impact → Application: UL Listed certification provides safety compliance and procurement confidence, easing the path to code approvals and customer audits for industrial facilities and OEM installations.
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FAQs
For optimal performance, ensure indoor, clean air conditions with adequate clearance around the transformer as per Eaton guidelines. The unit is DT-3 designed and comes in a footprint that suits mid-size distribution panels. Provide proper mounting on a rigid base, confirm 480 V primary feeders are wired to the V48M28B49NV with correct phase alignment, and maintain ambient temperatures within the 80 °C rise rating to prevent thermal overloading.
The transformer is rated at 150 kVA with a 480 V primary and a 208Y/120 V secondary. This three-phase configuration supports balanced power delivery to downstream equipment while preserving voltage integrity across feeders and loads, making it suitable for medium-load industrial applications.
Yes. Its dry-type, totally enclosed non-ventilated design minimizes dust ingress and fire risk in indoor environments, while the aluminum windings and 80 °C rise rating promote reliability under typical manufacturing and data-center loads. The UL Listed certification further supports compliance with electrical safety standards commonly required in these facilities.
The V48M28B49NV carries UL Listed certification, indicating conformance with recognized safety standards for electrical equipment. This helps simplify code compliance, supplier qualification, and inspections in many regions, though local codes should always be consulted for any additional certifications or approvals required outside the UL scope.
The warranty follows Eaton’s policy 25-000, offering one year from installation or 18 months from shipment, whichever occurs first. Maintenance considerations include periodic inspection of connections, ensuring proper ventilation (if not fully enclosed in a larger cabinet), and monitoring temperature rise to verify cooling performance remains within the 80 °C rating.