Eaton V48M28T30EEZZ Open core-coil transformer - NEMA TP-1
Part Number: V48M28T30EEZZ
Quick Summary
Eaton V48M28T30EEZZ is an open core-coil transformer designed for three-phase power distribution in industrial facilities. The unit addresses the challenge of delivering stable secondary voltage in space-constrained panels while minimizing heat and maintenance requirements. It carries UL Recognized and NEMA TP-1 compliance, with a 150 °C rise and 200 °C insulation system that support rugged, long-life operation. This dry-type transformer combines compact footprint with robust cooling and reliable tapping options to accommodate +2.5% / -2.5% voltage adjustments. With a 30 kVA rating and 480 V primary feeding 208Y/120 V secondary, it scales across automation panels, data centers, and manufacturing lines, helping reduce energy waste and simplify installation.
Product Information
Extended Description
V48M28T30EEZZ 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, EE, ZZ
Product Name
Eaton Open core-coil ventilated transformer
Catalog Number
V48M28T30EEZZ
UPC
786680047367
Product Length/Depth
0.001 in
Product Height
32.02 in
Product Width
0.001 in
Product Weight
251 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
Aluminum
Frame
912C
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
This transformer delivers a 30 kVA, three-phase rating with a 480 V primary and 208Y/120 V secondary, enabling reliable power distribution in industrial panels. The precise voltage transformation minimizes waveform distortion and supports reliable PLC and motor control circuits, reducing equipment stress and improving uptime. Ideal for machine centers, automation panels, and distributed power networks in manufacturing and data-center environments. The open core, coil ventilated dry-type design enhances cooling and ventilation, delivering better thermal performance, lowering insulation stress, and enabling denser panel layouts while maintaining oil-free operation. Voltage taps at +2.5% and -2.5% allow quick field adjustments to sustain output under load fluctuations, protecting sensitive electronics and motors from undervoltage or overvoltage. Aluminum windings on a 912C frame provide robust mechanical integrity, corrosion resistance, and easier installation in elevated or rack-mounted configurations. UL Recognized and NEMA TP-1 compliant construction offers safety and regulatory confidence, simplifying procurement and installation in regulated facilities. The unit’s 251 lb weight and compact footprint support versatile mounting options in automation cabinets, switchgear, and distribution panels, delivering reliable performance with minimal space impact.
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FAQs
Installation should begin with a proper panel layout that accommodates the 912C frame and the 251 lb weight. Ensure secure mounting, adequate ventilation for the open-core design, and proper clearance around leads. Use the +2.5% and -2.5% taps to tune the output under load, and verify 480 V to 208Y/120 V connections follow rated phasing for three-phase systems.
Verify the 30 kVA VA rating, three-phase configuration, primary voltage of 480 V, secondary voltage of 208 Y/120 V, frequency 60 Hz, aluminum windings, and frame 912C. Also confirm temperature rise of 150 °C with a 200 °C insulation system and the voltage taps (+2.5% and -2.5%).
Yes. Its open-core ventilated dry-type construction provides effective cooling without oil, enabling dense panel layouts. The compact footprint and mounting flexibility, combined with a 30 kVA rating, make it well-suited for automation cabinets, switchgear, and data-center discrete distribution within constrained spaces.
The V48M28T30EEZZ is UL Recognized and NEMA TP-1 compliant, with a design optimized for efficiency as indicated by NEMA TP-1 notes. These certifications support safer installation in regulated facilities and simplify procurement in electrical distribution projects.
Being a dry-type transformer, it eliminates oil leakage risks and reduces fire hazards, lowering maintenance and insurance costs. The robust cooling and voltage-tap options help maintain performance, reducing downtime and energy waste, while UL/NEMA compliance supports longer service life and easier asset management for automation and manufacturing operations.