Eaton Three-Phase Ventilated T...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$4,942.49
Eaton Ventilated Transformer Aluminum Windings

Eaton Three-Phase Ventilated Transformer 480V to 208Y/120V Aluminum Windings NEMA 2 Enclosure

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Model: V48M28T4516

In Stock (leaves warehouse same day if ordered before 3pm ET)

$4,942.49
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Eaton Three-Phase Ventilated Transformer 480V to 208Y/120V Aluminum Windings NEMA 2 Enclosure

Professional Power Distribution & Voltage Transformation

The Eaton Three-Phase Ventilated Transformer delivers reliable voltage transformation from 480V to 208Y/120V with aluminum windings and NEMA 2 enclosure protection. This professional-grade transformer features 60 Hz frequency rating, 220°C insulation class, and 150°C temperature rise for dependable three-phase power distribution applications.

Professional Features & Benefits

  • Three-Phase 480V to 208Y/120V: Provides precise voltage transformation for commercial and industrial power distribution systems
  • Aluminum Windings: Delivers efficient power transfer with reliable conductivity and cost-effective performance
  • NEMA 2 Enclosure: Protects internal components from dripping water and falling dirt for indoor applications
  • DOE 2016 Efficiency Compliant: Meets 10 CFR Part 431-2016 efficiency standards for energy-conscious installations
  • 220°C Insulation Class: Ensures reliable operation under demanding thermal conditions with extended service life
  • Fungus-Resistant Treatment: Varnished core and coil construction provides enhanced durability in humid environments
  • UL Listed Certification: Meets rigorous safety standards for professional electrical installations

Technical Specifications

  • Catalog Notes: 10 CFR Part 431 (2016) Efficient
  • Certifications: UL Listed
  • Coil Material: Aluminum
  • Compliances: DOE2016 Efficient
  • Efficiency: 10 CFR Part 431-2016 (DOE 2016)
  • Enclosure: NEMA 2
  • Frequency Rating: 60 Hz
  • Insulation: 220 °C
  • Phase: Three-phase
  • Secondary Voltage: 208Y/120 V
  • Special Features: Fungus-resistent varnished core and coil
  • Temperature Rise: 150 °C rise
  • Voltage Rating: 480 Vac-208Y/120 Vac
  • Wiring Connection: 280B

Professional Applications

  • Commercial Building Power Distribution
  • Industrial Facility Voltage Transformation
  • Manufacturing Plant Electrical Systems
  • Office Complex Power Infrastructure
  • Retail Establishment Electrical Distribution
  • Institutional Facility Power Systems
  • Multi-Tenant Building Applications

Why Choose Eaton Quality?

Eaton transformers deliver proven reliability with UL Listed certification, DOE 2016 efficiency compliance, and professional-grade NEMA 2 enclosure protection. The fungus-resistant varnished construction and 220°C insulation class ensure dependable performance in demanding commercial and industrial environments.

Manufacturer Resources

Product Specs

Catalog Notes:
10 CFR Part 431 (2016) Efficient
Certifications:
UL Listed
Coil Material:
Aluminum
Compliances:
DOE2016 Efficient
Efficiency:
10 CFR Part 431-2016 (DOE 2016)
Configuration:
NEMA 2
Frequency Rating:
60 Hz
Insulation:
220 °C
Phase:
Three-phase
Secondary Voltage:
208Y/120 V
Special Features:
Fungus-resistent varnished core and coil
Temperature Rise:
150 °C rise
Voltage Rating:
480 Vac-208Y/120 Vac
Wiring Connection:
280B
Department:
Electrical
Product Group:
Power Distribution
Product Type:
Transformer
Product Subgroup:
Transformers

Eaton V48M28T4516 – Frequently Asked Questions

1) Will an Eaton V48 three-phase transformer step 480V down to 208Y/120V for receptacle and lighting panels?
That is exactly the conversion it does. The Eaton ventilated three-phase transformer takes 480 Vac primary and delivers 208Y/120 Vac secondary, so you get 120V line-to-neutral for receptacles and 208V three-phase for motor and equipment loads off the same panel. Frequency rating is 60 Hz, so it suits standard North American service.
2) Can this Eaton NEMA 2 transformer be mounted outdoors or in a wash-down area?
No. A NEMA 2 enclosure is a drip-proof indoor rating, good against dripping water and falling dirt but not against rain, sleet, or hose-down. Put the Eaton ventilated transformer in an electrical room, a mechanical space, or under an overhang inside the building envelope. For a yard pad or an exposed exterior wall you need a NEMA 3R weatherproof unit instead.
3) Does this Eaton transformer meet DOE 2016 energy efficiency requirements for new construction?
Yes, it is built to 10 CFR Part 431-2016, the DOE 2016 efficiency standard that applies to low-voltage dry-type distribution transformers. That is the level new commercial work and most energy-code submittals call for. It is also UL Listed.
4) Aluminum windings versus copper on a dry-type transformer, does it matter for my install?
The Eaton ventilated unit uses aluminum coil. Electrically it does the same job and it still meets DOE 2016 efficiency, so it is the usual choice where the spec does not call out copper. The place it matters is the drawing: some institutional and government specs, and some facility standards, require copper windings outright. Read the spec section before you order, because an aluminum-wound unit on a copper-specified job gets rejected at submittal, not at startup.
5) How much clearance and ventilation does an Eaton ventilated dry-type transformer need?
It is a ventilated design, meaning it cools by natural air flow through the enclosure louvers, so it needs open air on all sides and cannot be boxed into a closet or buried behind stored material. Plan the room for heat rejection too: the unit runs a 150 degree C temperature rise over ambient at full load with a 220 degree C insulation system, and that heat goes into the space. Follow the clearance dimensions on the Eaton nameplate and drawing for the kVA you order.
6) Can I use this transformer to go the other way, 208V up to 480V?
Not as catalogued. The Eaton V48 series is built as a 480 Vac primary to 208Y/120 Vac secondary step-down unit, and the 208Y/120 side is a four-wire wye with a neutral. If you need to step 208V up to 480V for a piece of equipment, order a transformer built for that direction rather than reverse-feeding this one.
7) Do I need to ground the neutral and drive a grounding electrode at a 480 to 208Y/120 transformer?
Yes, because the 208Y/120 output is a separately derived system. The wye secondary gives you a neutral point that has to be bonded and connected to a grounding electrode at the transformer or at the first downstream disconnect, with a system bonding jumper installed at one point only. This is the step most often missed on a retrofit, and it is what makes the 120V line-to-neutral circuits behave.
8) What part number do I give my distributor for a 75 kVA Eaton 480 to 208Y/120 transformer?
For 75 kVA the Eaton catalog number is V48M28T7516. The rest of the range follows the same pattern: V48M28T1516 for 15 kVA, V48M28T3016 for 30, V48M28T4516 for 45, V48M28T1216 for 112.5, V48M28T4916 for 150, V48M28T2216 for 225, V48M28T3316 for 300, then V48D28T5516 for 500 and V48D28T7716 for 750. Note the M changes to D on the two largest sizes.
9) Is this Eaton transformer suitable for a humid space like a parking garage or a coastal plant room?
The core and coil are varnished with a fungus-resistant treatment, which is the standard defense against humidity and mold growth on a dry-type unit. That covers damp indoor environments. It does not change the enclosure rating, though: NEMA 2 is drip-proof indoor only, so a garage deck exposed to driving rain or wash-down still calls for a weatherproof enclosure.
How fast can I get the Eaton V48M28T4516 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Eaton V48M28T4516 come with a warranty?
Absolutely. The Eaton V48M28T4516 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Eaton V48M28T4516?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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