Eaton N48M31T4516TCU Transformer - DOE2016 Efficient
Part Number: N48M31T4516TCU
Quick Summary
The Eaton N48M31T4516TCU Transformer is a three-phase K-Factor nonlinear ventilated transformer designed for efficient power distribution in industrial environments. This solution addresses common pain points like heat buildup, energy waste, and mounting flexibility in crowded electrical spaces. With UL Listed certification and DOE 2016 efficiency compliance, it also aligns with rigorous regulatory and procurement requirements. Its NEMA 2 enclosure, copper windings, and integrated thermal sensor support reliable operation in challenging factories and control rooms while meeting insulation, mounting, and environmental standards. For engineers seeking better energy performance and easier maintenance, this transformer combines high efficiency with practical installation and monitoring capabilities, enabling cost savings and long-term reliability across industrial applications.
Product Information
Extended Description
N48M31T4516TCU Eaton: Eaton K-Factor nonlinear ventilated transformer, Copper windings, NEMA 2, FR942, 60 Hz, 220C, 45 kVA, Three-Phase, 480 to 220Y/127, 150C rise, Shielded, DOE 2016, WS59, 283B, K13, Thermal sensor
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M31T4516TCU
UPC
786680245077
Product Length/Depth
24 in
Product Height
43 in
Product Width
30.5 in
Product Weight
689 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
942
Insulation
220 °C
Mounting
Floor or wall, upright only
Tap size
2 at +2.5%, 4at -2.5%
Frequency rating
60 Hz
Kva Rating
45 kVA
Volt ampere rating
45 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
WS59
Feature → Business Impact → Application: K-Factor 13 nonlinear design reduces nuisance harmonics and improves system efficiency, lowering copper losses and cooling demands, which translates to measurable energy savings in continuous-operation panels and switchgear. This supports compliant procurement and reduces total cost of ownership in manufacturing lines requiring steady, clean power delivery. Feature → Business Impact → Application: Copper windings maximize conductivity with minimal voltage drop under load, delivering stable output for sensitive controls and robotics in assembly lines, while enabling compact packaging for floor or wall mount installations. Feature → Business Impact → Application: NEMA 2 enclosure provides robust ingress protection for dusty or humid factory floors, simplifying site installation and reducing enclosure-related maintenance, ideal for machine rooms and outdoor-adjacent panels. Feature → Business Impact → Application: Tap settings at +2.5% and -2.5% offer precise voltage regulation to keep loads within tolerance, reducing equipment stress on motors and sensors in critical process equipment. Feature → Business Impact → Application: DOE 2016 efficiency and UL listing provide regulatory confidence and energy-cost reductions, supporting sustainability programs and optimized vendor selection for plant-wide upgrades. Feature → Business Impact → Application: Integrated shield and thermal sensor in coils enhance EMI control and thermal monitoring, enabling proactive maintenance and improved reliability for data-intensive PLCs and drives in packaging and material handling lines.
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FAQs
The N48M31T4516TCU is a three-phase transformer designed for floor or wall mounting in upright orientation with a NEMA 2 enclosure. Plan a rigid mounting surface, ensure clearances for ventilation, and connect wiring per 283B standards. It supports 2 at +2.5% and 4 at -2.5% tap settings to maintain voltage within tolerance under varying load, reducing motor stress and sensor drift.
This transformer adheres to DOE 2016 efficiency standards and 10 CFR Part 431-compliant notes, providing energy savings over conventional units. It features a 60 Hz, 45 kVA three-phase rating with 480 V to 220Y/127 V outputs, copper windings for high conductivity, and a 150 °C rise, ensuring stable performance while minimizing heat and emissions in continuous operation.
Yes. With 45 kVA capacity, 480 V primary and 220Y/127 V secondary outputs, and a compact footprint within a NEMA 2 enclosure, it is well-suited for control panels and automation shelves. The unit’s K-Factor 13 design and shielded construction support clean power delivery to PLCs, drives, and sensors, improving reliability in production lines.
The N48M31T4516TCU is UL Listed and DOE2016 efficient, with 10 CFR Part 431 notes applicable for energy efficiency compliance. The enclosure and electrical ratings support safe operation in standard industrial environments, and the device’s insulation and temperature rise specifications align with typical plant requirements for long-life performance.
Expect lower energy losses due to DOE 2016 efficiency, reduced thermal stress thanks to copper windings and effective ventilation, and improved reliability from the integrated thermal sensor and shield. These factors contribute to lower operating costs, reduced downtime, and a favorable return on investment in electrical modernization and reliability programs.