Eaton N48M31T7516TCU Transformer - K-Factor 13
Part Number: N48M31T7516TCU
Quick Summary
Eaton N48M31T7516TCU is a high-efficiency, three-phase transformer designed for industrial power distribution. Facility teams often struggle with energy waste and overheating in electrical rooms, impacting reliability and operating costs. This UL Listed unit meets DOE 2016 Efficient standards and features a NEMA 2 enclosure, copper windings, and a shielded, ventilated design for rugged environments. By combining an energy-conscious profile with robust protections, it supports scalable power distribution while simplifying compliance, installation, and ongoing maintenance in industrial facilities and manufacturing lines.
Product Information
Extended Description
N48M31T7516TCU Eaton: Eaton K-Factor nonlinear ventilated transformer, Copper windings, NEMA 2, FR943, 60 Hz, 220C, 75 kVA, Three-Phase, 480 to 220Y/127, 150C rise, Shielded, DOE 2016, WS60, 283B, K13, Thermal sensor
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M31T7516TCU
UPC
786680245152
Product Length/Depth
31.5 in
Product Height
51 in
Product Width
34.5 in
Product Weight
1098 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
943
Insulation
220 °C
Mounting
Floor or wall, upright only
Tap size
2 at +2.5%, 4at -2.5%
Frequency rating
60 Hz
Kva Rating
75 kVA
Volt ampere rating
75 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
WS60
K-Factor 13 nonlinear design reduces harmonic heating and stray losses, delivering measurable energy savings and cooler operation in demanding loads. Copper windings coupled with an electrostatic shield minimize EMI and protect adjacent equipment, improving overall system reliability and reducing downtime during commissioning and maintenance. The NEMA 2 enclosure and floor or wall mounting capability simplify installation in existing electrical rooms, while helping meet space constraints and wiring code requirements. DOE 2016 Efficient compliance paired with UL Listed certification provides rapid route-to-compliance and lower lifecycle operating costs, supporting long-term ROI for capital projects and plant modernization. A 75 kVA three-phase configuration with 480 V primary and 220Y/127 V secondary delivers flexible integration with existing motor drives and control panels, while the 2 at +2.5%, 4 at -2.5% tap settings enable on-site voltage optimization. The coil-mounted thermal sensor and electrostatic shield enhance safety monitoring and fault detection, reducing risk and unplanned outages. Weathershield WS60 compatibility adds weather-resistance for outdoor installations or harsh environments, extending service life and reducing replacement costs.
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FAQs
The unit is engineered for a 480 V primary and 220Y/127 V secondary in a three-phase configuration, supporting 60 Hz operation. Wiring connection is standard 283B, with a tap range of 2 at +2.5% and 4 at -2.5%, enabling on-site voltage adjustments. This compatibility simplifies integration with common industrial power networks and control panels.
DOE 2016 Efficient compliance ensures reduced no-load and load losses, contributing to lower operating costs and heat output. The transformer uses copper windings, a nonlinear K-Factor of 13 to manage harmonic currents, and a shielded, ventilated design to sustain efficiency under varying load profiles typical in industrial facilities.
Yes. It is designed for floor or wall installation with upright mounting, housed in a NEMA 2 enclosure for indoor protection. The WS60 weather-shield option expands suitability to harsher environments, while 283B wiring supports straightforward field connections, reducing installation time and risk.
The transformer includes a thermal sensor embedded in the coils and an electrostatic shield for EMI protection. Regular thermal and insulation checks, plus monitoring of the shield and enclosure integrity, help detect overheating or insulation degradation early, enabling proactive maintenance and minimizing unplanned outages.
Ideal for manufacturing lines, motor control centers, and panel boards, the 75 kVA unit delivers reliable, efficient power distribution with energy savings from DOE 2016 compliance and reduced losses from copper windings. Improved reliability, lower energy costs, and easier regulatory compliance translate to a favorable payback period in capital upgrade cycles.