Eaton N48M31T3016TCU Ventilated transformer - DOE2016
Part Number: N48M31T3016TCU
Quick Summary
Eaton N48M31T3016TCU is a high-efficiency, three-phase transformer designed for industrial power distribution in manufacturing facilities. Engineers often grapple with balancing energy costs, voltage stability, and regulatory compliance across non-linear loads. This unit is UL Listed and DOE 2016 Efficient, featuring a NEMA 2 enclosure and a shielded design to withstand rugged indoor environments. With copper windings and a 30 kVA rating, it supports scalable, reliable power delivery while enabling easy maintenance and predictable performance for critical equipment in today’s automation-driven plants.
Product Information
Extended Description
N48M31T3016TCU Eaton: Eaton K-Factor nonlinear ventilated transformer, Copper windings, NEMA 2, FR940, 60 Hz, 220C, 30 kVA, Three-Phase, 480 to 220Y/127, 150C rise, Shielded, DOE 2016, WS58, 283B, K13, thermal sensor
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M31T3016TCU
UPC
786680244247
Product Length/Depth
21.13 in
Product Height
36.88 in
Product Width
24.88 in
Product Weight
430 lb
Compliances
DOE2016 Efficient
Certifications
UL Listed
Catalog Notes
10 CFR Part 431 (2016) Efficient
Coil material
Copper
Enclosure
NEMA 2
Wiring connection
283B
Type
Energy-efficient ventilated transformer
Frame
940
Insulation
220 °C
Mounting
Floor or wall, upright only
Tap size
2 at +2.5%, 4at -2.5%
Frequency rating
60 Hz
Kva Rating
30 kVA
Volt ampere rating
30 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
220Y/127 V
Sound Level
NEMA ST-20
Temperature rise
150 °C rise
Efficiency
10 CFR Part 431-2016 (DOE 2016)
Modification 1
Electrostatic shield, thermal sensor in coils
Special features
K-factor 13
Weathershield
WS58
Feature K-Factor 13 design → Business Impact Improved harmonic mitigation and reduced heat generation under non-linear loading → Application Drives, rectifiers, and PLC-controlled equipment in manufacturing facilities benefit from cleaner power and longer component life. Feature DOE 2016 Efficient compliance → Business Impact Lower operating costs and energy spend with compliant efficiency standards → Application Energy-intensive processes and facilities running 24/7 see measurable savings. Feature Copper windings with shield and thermal sensor → Business Impact Enhanced electrical conductivity, protection against thermal runaway, and proactive maintenance data → Application Data centers and high-duty automation studios rely on reliable temperature monitoring and fast fault detection. Feature NEMA 2 enclosure with WS58 shield → Business Impact Robust indoor protection reduces corrosion risk and downtime → Application Factory floors and electrical rooms in harsh environments benefit from durable enclosure performance. Feature Dual voltage taps (+2.5% / -2.5%) → Business Impact Precise voltage regulation minimizes dT and protects sensitive loads → Application Heavy machinery and computer-controlled systems maintain stable operation despite input variations.
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FAQs
The N48M31T3016TCU is a three-phase transformer rated for 480 V primary and 220Y/127 V secondary at 60 Hz. It includes a standard 283B wiring connection and a tap set of 2 at +2.5% and 4 at -2.5% to fine-tune secondary voltage, ensuring stable operation for sensitive loads and compliant distribution in industrial facilities.
This unit is UL Listed and DOE 2016 Efficient, aligning with current energy-use and safety standards. It carries a NEMA 2 enclosure rating for indoor protection and includes a thermal sensor in coils, providing ongoing monitoring for reliable operation and maintenance planning in regulated environments.
Yes. The transformer features a K-Factor of 13, copper windings, and a shielded design that mitigates harmonics and reduces stray heat. This combination supports cleaner power delivery to nonlinear loads like variable-speed drives and rectifier-based systems, improving reliability and component life.
Plan for floor or wall mounting in upright orientation only, with a weight of approximately 430 lb. The unit’s NEMA 2 enclosure and WS58 shield are suited for indoor use, while the 30 kVA rating and frame 940 dimensions support fitment in standard electrical rooms with adequate ventilation.
The transformer includes a thermal sensor in the coils and an electrostatic shield option, enabling temperature-based maintenance planning and fault detection. These features help reduce downtime, extend service life, and support compliance with energy-efficiency programs and regulatory reporting.