Eaton V48M28B45CUNV Transformer - UL Listed
Part Number: V48M28B45CUNV
Quick Summary
V48M28B45CUNV is a three-phase transformer designed for reliable power distribution in industrial facilities. This unit reduces risk from dust, moisture, and heat with a totally enclosed non-ventilated DT-3E design, helping minimize downtime in harsh environments. Key certifications include UL Listed safety compliance, and the indoor-outdoor capability aligns with rugged facility needs. By combining durable copper windings with a precise 80 °C rise rating, it delivers dependable performance. The design supports site voltage variation via selectable taps, while providing robust compatibility with 480 V primary and 208Y/120 V secondary systems to optimize overall facility electrical efficiency and uptime.
Product Information
Extended Description
V48M28B45CUNV Eaton: Eaton Totally enclosed non-ventilated transformer DT-3E Three-phase 480 DELTA 2 at +2.5% FCAN 4 at -2.5% FCBN 208Y/120V 80°C 45 kVA Copper windings 916AN 280B 60 Hz
Product Name
Eaton Totally enclosed non-ventilated transformer
Catalog Number
V48M28B45CUNV
UPC
786680114335
Product Length/Depth
23.42 in
Product Height
46.58 in
Product Width
28.22 in
Product Weight
1116 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
Copper
Design
DT-3E
Frame
916AN
Tap size
2 at +2.5% FCAN 4 at -2.5% FCBN
Type
Totally enclosed non-ventilated transformer
Wiring connection
280B
Frequency rating
60 Hz
Kva Rating
45 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
80 °C rise
Weathershield
Indoor-Outdoor
Feature: Totally enclosed non-ventilated enclosure (DT-3E) with indoor-outdoor suitability. Business Impact: Protects windings and insulation from dust, moisture, and corrosion, reducing maintenance costs and extending service life. Application: Ideal for manufacturing floors, warehouses, and processing plants where environmental exposure is variable. Feature: 45 kVA, three-phase performance. Business Impact: Provides ample load capacity for distribution circuits while maintaining efficiency and insulation limits. Application: Common in mid-size power distribution centers, machine rooms, and panel boards requiring reliable step-down from 480 V to 208Y/120 V. Feature: Primary 480 V delta and secondary 208Y/120 V. Business Impact: Enables seamless integration with existing plant power rails and downstream equipment, reducing conversion losses. Application: Facilities with mixed voltage equipment or motor loads demanding stable secondary voltages. Feature: Copper windings. Business Impact: Improves thermal efficiency and durability under continuous duty, lowering long-term energy costs and heat-related wear. Application: High-temperature environments or high-startup currents in heavy machinery scenarios. Feature: Tap changers with +2.5% and -2.5% options. Business Impact: Allows on-site voltage compensation to counter long cable runs and supply dips, reducing electronics distress. Application: Critical for long feeders and remote installations where voltage drop is a concern. Feature: Weathershield Indoor-Outdoor capability. Business Impact: Expands installation options to indoor spaces with partial outdoor exposure, reducing facility constraints. Application: Mixed-use facilities, data centers with adjacent outdoor switchgear, and retrofit projects. Feature: UL Listed certification and Eaton warranty. Business Impact: Verifiable safety compliance and post-sale support, minimizing procurement risk and downtime. Application: Procurement cycles in regulated industries and long-term asset management programs. Feature: Physical dimensions and weight. Business Impact: Clear footprint and handling requirements support optimized site planning and crane/rigging coordination. Application: New installations and retrofits where space and service accessibility drive project timelines.
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FAQs
This unit is a three-phase, totally enclosed non-ventilated transformer designed for 60 Hz operation. It uses copper windings in frame 916AN with a 23.42 in depth, 46.58 in height, and 28.22 in width, weighing 1116 lb. Wiring connection is 280B and taps are accessible for +2.5% and -2.5% adjustments. Plan for adequate clearance, forklift or crane access, and shielded routing for the 480 V input and 208Y/120 V output.
The DT-3E totally enclosed non-ventilated design with Weathershield Indoor-Outdoor capability protects copper windings from dust, moisture, and temperature swings. This reduces maintenance intervals, improves reliability in variable environments, and supports installation near factory floors, outdoors, or in semi-enclosed switchgear rooms without compromising safety or performance. UL Listed certification reinforces compliance with safety standards.
The transformer provides taps at +2.5% FCAN and -2.5% FCBN, enabling on-site voltage adjustment to compensate line losses and long feeder drops. This reduces overheating of downstream equipment, stabilizes downstream voltages for sensitive electronics, and minimizes nuisance trips or under-voltage faults across critical loads.
This transformer carries UL Listed certification, signifying adherence to established electrical safety standards. For procurement and compliance, UL Listing reduces risk by validating manufacturing controls and safety performance. The DT-3E design and copper windings further support reliability, while the indoor-outdoor rating expands installation flexibility in diverse plant environments.
Eaton provides a warranty per policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. This, combined with the UL Listed safety certification and robust construction, supports a favorable total cost of ownership. For service, Eaton’s support framework helps address field maintenance, replacement parts, and engineering queries during asset life.