Eaton N48M28B4916LS55 Transformer - DOE2016 Efficient
Part Number: N48M28B4916LS55
Quick Summary
K-Factor nonlinear ventilated transformer from Eaton provides reliable power conditioning for industrial automation and manufacturing applications. When plants confront energy waste, voltage instability, or EMI concerns, this solution helps maintain uptime and performance. UL Listed, DOE 2016 Efficient, and 10 CFR Part 431 Efficient certifications bolster regulatory alignment and long-term reliability. With a robust NEMA 2 enclosure, aluminum windings, and a 480 V to 208Y/120 V output, it supports efficient, scalable power delivery for modern facilities requiring precise voltage regulation and energy-conscious operation.
Product Information
Extended Description
N48M28B4916LS55 Eaton: Eaton Eaton K-Factor nonlinear ventilated transformer, Aluminum windings, NEMA 2, FR945, 60 Hz, 220C, 150 kVA, Three-Phase, 480 to 208Y/120, 80C rise, Shielded, DOE 2016, WS62, 283B, K13, 55 dB
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B4916LS55
UPC
786680245329
Product Length/Depth
33.5 in
Product Height
66.18 in
Product Width
42.18 in
Product Weight
2410 lb
Compliances
DOE2016 Efficient
Certifications
UL Listed
Catalog Notes
10 CFR Part 431 (2016) Efficient
Coil material
Aluminum
Enclosure
NEMA 2
Wiring connection
283B
Type
Energy-efficient ventilated transformer
Frame
945
Insulation
220 °C
Mounting
Floor
Tap size
2 at +2.5%, 4at -2.5%
Frequency rating
60 Hz
Kva Rating
150 kVA
Volt ampere rating
150 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Sound Level
55 dB
Temperature rise
80 °C rise
Efficiency
10 CFR Part 431-2016 (DOE 2016)
Modification 1
Electrostatic shield
Special features
K-factor 13
Weathershield
WS62
Feature → Business Impact → Application: The K-Factor 13 nonlinear design mitigates distortion from nonlinear loads, reducing transformer losses and improving efficiency under harmonic-rich conditions, which translates to lower energy costs and cooler operation in continuous-duty applications. This is especially valuable for machine centers and drives-heavy environments where converters and VFDs are common, enabling more stable performance and reduced maintenance cycles. Feature → Business Impact → Application: Aluminum windings paired with an 80 °C rise capability offer a lighter weight for easier installation and reduced cooling requirements, without compromising voltage regulation in space-constrained panels or retrofit projects. Use this in retrofit automation cabinets or new factory floor deployments where weight and cooling budgets are critical. Feature → Business Impact → Application: A NEMA 2 enclosure delivers rugged indoor protection against dust and incidental moisture, supporting seamless integration in crowded switchgear rooms and crowded automation closets. This enhances installability in existing facilities with limited enclosure clearance and improves total cost of ownership over the system lifecycle. Feature → Business Impact → Application: The 2 at +2.5% and 4 at -2.5% tap changer provides precise voltage adjustment to maintain 208Y/120 V secondary output under varying loads, minimizing equipment stress and optimizing performance for servo drives, PLCs, and CNC control panels. Feature → Business Impact → Application: DOE 2016 Efficient compliance and UL Listed certification ensure regulatory alignment and long-term energy savings, reducing utility costs and simplifying procurement for government and enterprise projects. Feature → Business Impact → Application: Sound level of 55 dB and shielded design (electrostatic shield) reduce acoustic and EMI exposure in open plant floors and near sensitive instrumentation, supporting compliance with lean manufacturing cleanliness and noise policies. Reliability and performance data support ongoing ROI calculations for automation upgrades, data centers, and critical load centers.
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FAQs
Plan for floor mounting with the NEMA 2 enclosure in a clean, indoor environment. The unit is a three-phase 150 kVA transformer with a 480 V primary and 208Y/120 V secondary, using aluminum windings and a 283B wiring connection. Ensure adequate clearance for service access, ventilation, and tap access at the 2 at +2.5% and 4 at -2.5% taps.
Key specs include 150 kVA, 60 Hz, primary 480 V, secondary 208Y/120 V, and a sound level of 55 dB. The K-Factor 13 nonlinearity, DOE 2016 efficiency, and 80 °C rise support reliable operation under nonlinear loads, with efficient energy use and predictable voltage regulation in automation panels and drives.
Industries leveraging automation, CNCs, servo drives, and process control benefit most. The three-phase 480 V to 208Y/120 V output, energy-efficiency features, and rugged indoor enclosure make it ideal for control rooms, machine centers, and data centers seeking reliable power conditioning and regulatory compliance.
The N48M28B4916LS55 is UL Listed and DOE 2016 Efficient, with 10 CFR Part 431 efficiency notes. These certifications help meet regulatory requirements for energy use and safety, simplifying audits and acceptance testing for facilities with strict procurement standards.
Energy efficiency reduces operating costs over the life of the asset, while the shielded design and robust enclosure minimize EMI and wear on nearby instrumentation. The 2/4 tap voltage regulation improves uptime and reduces downstream equipment stress, supporting faster payback and lower maintenance intervals.