Eaton N48M28B7516LS50 Transformer - K-Factor 13
Part Number: N48M28B7516LS50
Quick Summary
Eaton N48M28B7516LS50 Transformer is a high‑efficiency K‑Factor nonlinear ventilated transformer designed for industrial power distribution and control panels. In busy facilities, hidden losses and heat buildup can undermine uptime and drive up energy costs. This unit meets UL Listed and DOE2016 Efficient standards, with 10 CFR Part 431 (2016) Efficient notes, ensuring regulatory compliance and long‑term performance. Engineered for three‑phase service at 75 kVA with a 480 V primary and 208Y/120 V secondary, it supports compact, compliant installations on the floor or wall in demanding environments. Aluminum windings and shielded construction help maintain efficiency and EMI control, delivering reliable power while protecting critical equipment and reducing operating expenses.
Product Information
Extended Description
N48M28B7516LS50 Eaton: Eaton K-Factor nonlinear ventilated transformer, Aluminum windings, NEMA 2, FR943, 60 Hz, 220C, 75 kVA, Three-Phase, 480 to 208Y/120, 80C rise, Shielded, DOE 2016, WS60, 283B, K13, 50 dB
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B7516LS50
UPC
786680245787
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
Aluminum
Enclosure
NEMA 2
Wiring connection
283B
Type
Energy-efficient ventilated transformer
Frame
943
Insulation
220 °C
Material
Al windings
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
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
Weathershield
WS60
Feature → Business Impact → Application: K‑Factor 13 nonlinear design improves derating stability and EMI control, translating to steadier voltages and reduced maintenance in sensitive loads such as PLCs and motor drives; ideal for energy‑aware industrial facilities seeking compliance with DOE 2016 and related standards. Feature → Business Impact → Application: Aluminum windings offer corrosion resistance and weight advantages, contributing to a more robust, easier‑to‑install unit in crowded electrical rooms and on mezzanines while keeping copper costs in check. Feature → Business Impact → Application: NEMA 2 enclosure delivers reliable indoor protection against dust and moisture in rugged factory settings, supporting long service life in environments with moderate contamination or humidity. Feature → Business Impact → Application: 75 kVA, 480 V to 208Y/120 V three‑phase output provides scalable power distribution for switchgear, panels, and automation racks, enabling modular design and straightforward upgrades. Feature → Business Impact → Application: Tap settings of +2.5% and -2.5% offer precise voltage regulation, reducing downstream equipment stress and improving control loop accuracy in load‑critical applications. Feature → Business Impact → Application: Electrostatic shield and WS60 Weathershield compatibility enhance EMI containment and environmental protection, addressing EMI concerns in high‑density installations and future outdoor or semi‑outdoor expansions. This combination supports longer intervals between maintenance cycles and better uptime in demanding facilities.
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FAQs
The transformer is designed for floor or wall mounting in upright position with a NEMA 2 enclosure for indoor environments. Plan for adequate clearance, access to wiring connection 283B, and ensure the location supports a 1098 lb unit while allowing service access for taps and cooling.
It is a three‑phase, 75 kVA transformer with a 480 V primary and 208Y/120 V secondary, operating at 60 Hz. Tap settings are +2.5% and -2.5% to aid voltage regulation on distribution circuits.
Yes. The unit adheres to DOE 2016 Efficient requirements and is UL Listed, providing regulatory compliance and assurance for energy use and safety in industrial power systems.
K‑Factor 13 indicates a nonlinear, energy‑efficient transformer that helps manage short‑term peak loads and harmonic currents, reducing EMI and improving regulator stability for sensitive equipment like drives and controllers.
Benefits include lower energy losses thanks to DOE 2016 efficiency, EMI containment via electrostatic shielding, and compatibility with shielded configurations (WS60). These factors translate to reduced cooling requirements, longer equipment life, and lower total cost of ownership over time.