Eaton N48M28B4916CULS55 K-Factor Transformer - DOE2016
Part Number: N48M28B4916CULS55
Quick Summary
The Eaton K-Factor nonlinear ventilated transformer steps 480 V down to 208Y/120 V for industrial power distribution. Engineers often wrestle with heat buildup, efficiency targets, and regulatory compliance when selecting transformers for motor-heavy facility loads. This unit meets DOE 2016 efficient standards, is UL Listed, and comes in a rugged NEMA 2 enclosure with electrostatic shielding to improve safety and reliability. With a 150 kVA three-phase rating, copper windings, 480 V primary and 208Y/120 V secondary, the N48M28B4916CULS55 delivers dependable power for industrial automation and manufacturing lines.
Product Information
Extended Description
N48M28B4916CULS55 Eaton: Eaton K-Factor nonlinear ventilated transformer, Copper windings, NEMA 2, FR944, 60 Hz, 220C, 150 kVA, Three-Phase, 480 to 208Y/120, 80C rise, Shielded, DOE 2016, WS61, 283B, K13, 55 dB
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B4916CULS55
UPC
786680245565
Product Length/Depth
33.5 in
Product Height
60 in
Product Width
38 in
Product Weight
2132 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
944
Insulation
220 °C
Material
Copper windings
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
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
WS61
Feature: K-Factor nonlinear design with DOE 2016 efficiency minimizes core losses and heat generation. Business Impact: Lower energy consumption and reduced cooling load translate to measurable operating-cost savings in high-load automation panels. Application: Ideal for manufacturing lines, robotics, and control cabinets where steady, efficient power is critical. Feature: 150 kVA three-phase rating at 60 Hz supports mid-range industrial loads. Business Impact: Provides reliable voltage regulation and capacity headroom to prevent brownouts during peak motor starts. Application: Suitable for machine tools, conveyors, and CNC systems in plant floors. Feature: Copper windings and 220 °C insulation with electrostatic shield improve efficiency and EMI performance. Business Impact: Higher reliability and lower stray capacitance protect sensitive electronics in control racks. Application: Control panels and automation cabinets in harsh environments. Feature: NEMA 2 enclosure, floor mounting, and 283B wiring connection plus tap settings 2 at +2.5%, 4 at -2.5%. Business Impact: Simplified installation, straightforward voltage regulation, and robust field adjustability. Application: Indoor plant rooms, electrical rooms, retrofit projects needing precise voltage control. Feature: 480 Vac primary to 208Y/120 Vac secondary, 55 dB sound level, and WS61 weather shield option. Business Impact: Quiet operation with protective options for varied environments reduces noise-related compliance risk. Application: Open plant floors and equipment rooms across manufacturing and packaging facilities.
Get a Quick Quote for a Eaton N48M28B4916CULS55
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton N48M28B4916CULS55?
Enquire Now
FAQs
The transformer uses a 480 V primary and delivers 208Y/120 V secondary at 60 Hz in a three-phase configuration. It is floor-mountable with a 283B wiring connection, includes a voltage-tap range of 2 at +2.5% and 4 at -2.5%, and is suited for indoor plant rooms, electrical rooms, or retrofit panels where robust coordination with existing power distribution is required.
K-Factor 13 denotes reduced transformer losses under nonlinear, non-ideal loading conditions typical of modern industrial motors. Combined with DOE 2016 efficiency, this results in lower no-load and load losses, cooler operation, and better energy performance in daily production cycles, especially during high-startup currents and variable motor loads.
Yes. With a 150 kVA rating, copper windings, and a regulated 480 V to 208Y/120 V output, it supports multiple automation circuits and control cabinets. The NEMA 2 enclosure and low audible level (55 dB) make it suitable for open plant areas, while the floor mounting and shield features help manage EMI in dense panel environments.
The N48M28B4916CULS55 is UL Listed and meets DOE 2016 efficiency standards, with 10 CFR Part 431 (2016) Efficient modification notes. The combination supports regulatory compliance for energy performance and safety in typical industrial installations.
Copper windings and robust insulation (220 °C) promote long life and lower maintenance needs. The rugged NEMA 2 enclosure, electrostatic shield, and modular tapping enable simpler field service and voltage stabilization, contributing to lower total cost of ownership through fewer outages, extended service intervals, and predictable performance in automation-heavy facilities.