Eaton V48M31T30CUZZ Open core-coil transformer - UL
Part Number: V48M31T30CUZZ
Quick Summary
Eaton open core-coil ventilated transformer powers industrial control panels and distribution systems in demanding environments. Engineers often battle heat buildup, efficiency losses, and space constraints when selecting dry-type transformers for critical loads. This unit carries UL Recognized safety certification and leverages an open-core DT-3 design for robust protection and service life. With copper windings and 60 Hz operation, it delivers reliable power and measurable cost efficiency for panel builders and OEMs. The 30 kVA rating with 480 V primary and 220Y/127 V secondary supports scalable, compliant solutions across manufacturing, process, and utility installations.
Product Information
Extended Description
V48M31T30CUZZ Eaton: Eaton General-Purpose Transformer, Dry Type Distribution, DT-3, Three-phase, PV: 480V, Taps: 1 at +5% FCAN, 2 at -5% FCBN, SV: 220Y/127V, 150°C, 30 kVA, Cu windings, Frame: 910C
Product Name
Eaton Open core-coil ventilated transformer
Catalog Number
V48M31T30CUZZ
UPC
786685223629
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
304 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 Recognized
Catalog Notes
Open type core and coil assembly
Coil material
Copper
Design
DT-3
Frame
910C
Tap size
1 at +5% FCAN, 2 at -5% FCBN
Type
Dry Type Distribution Transformer
Frequency rating
60 Hz
Kva Rating
30 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
220Y/127 V
Temperature rise
150 °C rise
Feature: Open core-coil ventilated design with DT-3 construction. Business Impact: Enhanced cooling and reduced hotspot formation, increasing transformer lifespan in harsh environments. Application: Installation in control panels and distribution racks where airflow is available. Feature: Copper windings and a 150 °C rise insulation system. Business Impact: Higher current carrying capability with improved thermal margins, translating to fewer derates and longer service intervals. Application: High-load applications in manufacturing lines and process equipment. Feature: Three-phase 30 kVA rating with 480 V primary and 220Y/127 V secondary. Business Impact: Compatibility with common plant voltages, enabling seamless substitution and reduced wiring complexity. Application: Step-down and isolation for motor drives and panel circuits. Feature: Taps at +5% and -5% for voltage adjustment. Business Impact: Fine-tuned voltage regulation to accommodate site variations and panel tolerances, lowering voltage-related failures. Application: Critical loads requiring precise voltage delivery. Feature: Open-type core and coil assembly with a 910C frame. Business Impact: Simple on-site inspection, safer maintenance, and straightforward mounting in standard equipment enclosures. Application: Retrofit projects and new installations in space-limited control rooms. Feature: UL Recognized certification and a robust warranty framework. Business Impact: Assurance of safety compliance and predictable post-sale support, reducing risk and total cost of ownership. Application: OEM builds and end-user installations needing documented safety and service terms.
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FAQs
Yes. The V48M31T30CUZZ is a three-phase transformer with a 480 V primary and a 220Y/127 V secondary, designed for common industrial panels. Its DT-3 open-core, 910C frame, and copper windings support straightforward mounting, compatible electrical connections, and ease of integration into existing 480 V distributions while maintaining proper clearance and ventilation per standard enclosure practices.
The transformer operates at 60 Hz with a 30 kVA rating and a 150 °C rise rating, indicating strong insulation margins under high-load conditions. Copper windings provide low resistive losses, contributing to improved efficiency. In typical panel applications, expect stable voltages with controlled temperature rise, reduced thermal cycling, and predictable performance during peak demand.
Absolutely. The open core-coil design facilitates efficient cooling in ventilated spaces typical of control rooms and switchgear bays. Its DT-3 configuration supports robust, long-term service in manufacturing environments, where good heat dissipation and easy access for inspection are valuable. It’s well-suited for control panels, machine centers, and downstream distribution in industrial facilities.
This product is UL Recognized, confirming adherence to recognized safety standards for electrical equipment. The UL certification provides confidence in installation safety, reliability, and compatibility with regulated electrical environments, helping meet procurement requirements for many industrial and OEM applications.
The unit carries Eaton's warranty policy (25-000) offering one year from installation or eighteen months from shipment, whichever comes first. In addition to the warranty, Eaton provides specification sheets and catalogs to assist with ongoing maintenance planning, spare parts availability, and compatibility assessments for retrofits or new builds, supporting predictable total cost of ownership.