Eaton N48M28B4916LS50 Power Transformer - DOE2016
Part Number: N48M28B4916LS50
Quick Summary
Eaton N48M28B4916LS50 transformer delivers efficient, reliable power distribution for industrial equipment rooms. Engineers often struggle with energy efficiency, noise, and regulatory compliance across DOE 2016 and UL listings. This unit is UL Listed, DOE 2016 Efficient, and features a NEMA 2 enclosure for rugged environments. With aluminum windings and a compact ventilated design, it reduces operating costs while supporting scalable 150 kVA three-phase power. In 480 Vac-208Y/120 Vac applications, it delivers dependable performance at low sound levels and solid protection.
Product Information
Extended Description
N48M28B4916LS50 Eaton: Eaton Eaton K-Factor nonlinear ventilated transformer, Aluminum windings, NEMA 2, 60 Hz, 220°C, 150 kVA , Three-phase, 480 Delta V, 208Y/120 Vac, Low sound 50 dB, 80°C, 150 kVA, 480 Vac-208Y/120 Vac, DOE 2016
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B4916LS50
UPC
786680203923
Product Length/Depth
33.5 in
Product Height
66.18 in
Product Width
42.18 in
Product Weight
2317 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.
Compliances
DOE2016 Efficient
Certifications
UL Listed
Catalog Notes
10 CFR Part 431 (2016) Efficient
Coil material
Aluminum
Enclosure
NEMA 2
Type
Energy-efficient ventilated transformer
Insulation
220 °C
Mounting
Floor or wall
Tap size
2 at +2.5%, 4 at -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
50 dB
Temperature rise
80 °C rise
Voltage rating
480 Vac-208Y/120 Vac
Efficiency
10 CFR Part 431-2016 (DOE 2016)
Modification 1
Electrostatic shield
Special features
K-factor 13
Eaton's high-efficiency dry-type transformers
Eaton's high-efficiency dry-type transformers
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28B4916LS50
K-Factor nonlinear ventilated transformer design reduces copper and core losses, delivering measurable energy savings and lower cooling requirements for industrial facilities. This translates to lower operating costs and prolonged equipment life in continuous-duty environments, such as manufacturing floors and process lines. The 150 kVA three-phase rating supports scalable power distribution from 480 V to 208Y/120 V, enabling reliable panel board and equipment feed for machine shops, data centers, and packaging lines. The aluminum windings offer a lightweight yet durable alternative to copper, improving installation logistics and reducing maintenance costs over the life of the transformer. A NEMA 2 enclosure provides robust protection against dust and moisture, while the 50 dB sound level minimizes noise impact in open work areas and control rooms. Tap options of 2 at +2.5% and 4 at -2.5% provide flexible voltage regulation to maintain voltage integrity across varying loads. An electrostatic shield option enhances dielectric protection and short-circuit withstand, supporting safer installations in dense electrical rooms. The unit’s DOE2016 efficiency, UL listing, and 10 CFR Part 431 alignment simplify compliance audits and energy reporting for facility managers. Installation is facilitated by floor or wall mounting compatibility and the footprint considerations that keep spacing and ventilation straightforward. These features collectively deliver a compelling ROI through improved efficiency, reduced cooling loads, and dependable performance for critical workloads.
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FAQs
Install on a solid floor or suitable wall mounting space using a dedicated service clearance. The unit measures 33.5 in (depth) x 66.18 in (height) x 42.18 in (width) and weighs about 2317 lb, so ensure structural support and adequate ventilation. Plan for 50 dB operating noise and the NEMA 2 enclosure in environments with dust or moisture exposure.
This is a 150 kVA, three-phase transformer with a 480 V primary and a 208Y/120 V secondary. The voltage transformation supports scalable power distribution from large equipment feeds to control panels, enabling stable voltage regulation across varying load conditions.
Yes. The unit meets DOE 2016 efficiency requirements and is UL Listed. It also aligns with 10 CFR Part 431 (2016) Efficient standards, simplifying regulatory reporting and ensuring energy-compliant operation in commercial and industrial facilities.
Modification 1 indicates an electrostatic shield option to improve dielectric protection. Tap settings are 2 taps at +2.5% and 4 taps at -2.5%, allowing voltage regulation to maintain output accuracy under varying input conditions and load profiles.
Aluminum windings reduce weight and corrosion risk, while the ventilated design lowers cooling energy, contributing to lower operating costs. The rugged NEMA 2 enclosure, low 50 dB noise, and DOE2016 efficiency support long-term reliability, minimal downtime, and a favorable total cost of ownership across mission-critical applications.