Eaton V48M28T30CUEEZZ Open Core-Coil Transformer - NEMA TP-1
Part Number: V48M28T30CUEEZZ
Quick Summary
Eaton V48M28T30CUEEZZ open core-coil transformer delivers reliable step-down power for 3-phase industrial equipment. Many panel and machine installations struggle with overheating, voltage instability, and space constraints during integration. It is UL Recognized and NEMA TP-1 compliant, featuring an open-core ventilated design that improves cooling and reliability. With a 30 kVA rating and adjustable taps, this transformer supports consistent voltage regulation and safer operation, enabling smoother startup sequences. The copper-windings construction and rugged frame enable durable service in challenging environments, while compatibility with standard low-voltage distributions helps streamline procurement and installation processes.
Product Information
Extended Description
V48M28T30CUEEZZ Eaton: Eaton Open core-coil ventilated transformer, DT-3 (3-phase), PV 480V, Taps: 2 at +2.5% /4 at -2.5%, SV 208Y/120V, 150°C rise w/ 200°C insulation systeam, 30 kVA, Copper windings, EE, ZZ
Product Name
Eaton Open core-coil ventilated transformer
Catalog Number
V48M28T30CUEEZZ
UPC
786680059629
Product Length/Depth
0.001 in
Product Height
32.02 in
Product Width
0.001 in
Product Weight
342 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.
Compliances
NEMA TP-1 Compliant
Certifications
UL Recognized
Catalog Notes
NEMA TP-1 efficient, Open type core and coil assembly
Coil material
Copper
Frame
910C
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Type
Dry Type Distribution Transformer
Frequency rating
60 Hz
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208 Y/120 V
Temperature rise
150 °C rise
Volt ampere rating
30 kVA
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton Specification Sheet - V48M28T30CUEEZZ
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: 30 kVA three-phase dry-type open-core transformer. Business Impact: Delivers substantial power capacity in a compact, ventilated package, reducing equipment stacking and enabling scalable distribution. Application: Ideal for machine centers and panel boards requiring reliable power transfer with room to grow. Feature: Copper windings and ventilated design. Business Impact: Higher electrical efficiency and improved heat dissipation translate to lower cooling load and longer transformer life. Application: Open switchgear and indoor/outdoor control rooms where thermal management is critical. Feature: Primary 480 V and secondary 208Y/120 V with taps. Business Impact: Voltage matching and on-site regulation reduce nuisance trips and protect sensitive electronics. Application: Industrial feeders and control circuits with varying supply conditions. Feature: Taps at +2.5% and -2.5% with 2 and 4 tap options. Business Impact: on-site voltage compensation accommodates supply swings, boosting stability and uptime. Application: Facilities with fluctuating mains voltages or long-distance runs. Feature: 32.02 in height, 342 lb weight, 910C frame. Business Impact: Robust form factor supports reliable mounting in equipment racks or on concrete bases, improving installation flexibility. Application: Retrofit projects or new builds with height and footprint constraints. Feature: Compliance and warranty. Business Impact: UL Recognized and NEMA TP-1 compliant design reduces risk and accelerates procurement cycles, backed by Eaton’s 25-000 policy. Application: Regulatory-driven environments and service contracts where guaranteed coverage matters.
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FAQs
Install the transformer on a sturdy, level base with adequate ventilation around the open-core assembly to promote air flow. Ensure clearance for taps and access to the 480 V primary input and 208Y/120 V secondary outputs. Maintain proper mounting hardware and avoid grid-lock in compact panels. Consider vertical orientation to match enclosure space and wire routing.
The unit is a 30 kVA, three-phase transformer with 480 V primary and 208Y/120 V secondary at 60 Hz. It includes taps at +2.5% (two taps) and -2.5% (four taps) to fine-tune voltage in response to supply fluctuations. Copper windings and a 150 °C rise support robust performance in demanding environments.
Yes. The 30 kVA rating supports medium-load panels, and the open-core, ventilated design helps manage heat in dense installations. With UL Recognized and NEMA TP-1 compliance, it aligns with standard industrial distribution practices, reducing risk and simplifying regulatory adherence in manufacturing environments.
This transformer is UL Recognized and NEMA TP-1 compliant, reflecting adherence to established safety and efficiency requirements for dry-type distribution transformers. The combination supports reliable performance in critical systems and helps satisfy procurement and compliance criteria for industrial projects.
Maintenance is typically low due to a sealed dry-type design and copper windings, with routine checks on enclosure clearance and terminal connections. The 30 kVA rating, efficiency benefits from copper windings, and improved thermal management contribute to reduced downtime, predictable energy use, and a favorable return on investment over the service life.