Eaton N48M28B3016CULS42 Transformer - UL Listed
Part Number: N48M28B3016CULS42
Quick Summary
The Eaton N48M28B3016CULS42 transformer delivers efficient three-phase power conversion for industrial panels. Operators often struggle with energy waste, heat buildup, and regulatory pressure to meet DOE 2016 efficiency standards. UL Listed and DOE 2016 efficient, with a rugged NEMA 2 enclosure and K-Factor 13, it blends safety, performance, and compliance. This solution supports 480 V to 208Y/120 V systems in control panels, machine rooms, and process lines, delivering steady power with lower losses. The result is reduced energy costs, cooler operation, and longer service life, while installation remains straightforward thanks to copper windings, floor or wall mounting options, and standard wiring connections. A sound choice for manufacturers pursuing reliability and cost efficiency.
Product Information
Extended Description
N48M28B3016CULS42 Eaton: Eaton K-Factor nonlinear ventilated transformer, Copper windings, NEMA 2, FR940, 60 Hz, 220C, 30 kVA, Three-Phase, 480 to 208Y/120, 80C rise, Shielded, DOE 2016, WS58, 283B, K13, 42 dB
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B3016CULS42
UPC
786680244216
Product Length/Depth
21.13 in
Product Height
36.88 in
Product Width
24.88 in
Product Weight
507 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
940
Insulation
220 °C
Material
Copper windings
Mounting
Floor or wall, upright only
Tap size
2 at +2.5%, 4at -2.5%
Frequency rating
60 Hz
Kva Rating
30 kVA
Volt ampere rating
30 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Sound Level
42 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
WS58
Feature: K-Factor nonlinear ventilated design provides controlled cooling under variable loads. Business Impact: reduces hotspot formation and extends transformer life, delivering measurable efficiency gains in continuous-operation applications. Application: ideal for heavy-start industrial controls and machinery that experience surges in load, such as presses or packaging lines. Feature: 60 Hz, 30 kVA rating ensures predictable voltage transformation with minimal voltage drop. Business Impact: supports stable motor and PLC performance, enabling smoother startup and less equipment wear. Application: manufacturing lines and control panels where consistent power quality matters. Feature: Copper windings with 220 °C insulation increase current-carrying capacity and thermal resilience. Business Impact: improves reliability in high-load scenarios and reduces maintenance costs over time. Application: environments with elevated ambient temperatures or frequent load cycling. Feature: DOE 2016 Efficient rating and 42 dB sound level reduce energy consumption and nuisance noise. Business Impact: lowers operating costs and helps maintain compliant noise profiles in shared facilities. Application: machine rooms, open-plan plants, and spaces with strict environmental requirements. Feature: NEMA 2 enclosure with 480 V primary and 208Y/120 V secondary and versatile wiring (283B). Business Impact: simplifies installation, improves protection against dust/moisture, and supports easy field wiring. Application: retrofit projects and new installations in indoor industrial environments, with mounting options for floor or wall upright configurations. Supplemental context: Dimensions (21.13 in L x 24.88 in W x 36.88 in H) and a 42 dB sound footprint help plan space and acoustic impact in plant layouts, while the electrostatic shield option and WS58 weathershield compatibility offer additional protection for specific plant conditions.
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FAQs
The installation is streamlined by its floor or wall upright mounting and standard wiring connection (283B). Ensure adequate clearance for ventilation, verify enclosure rating (NEMA 2) for indoor service, and follow OEM torque specs for taps at +2.5% and -2.5%. The unit’s 30 kVA rating matches typical panel upgrades, reducing retrofit risk and downtime while maintaining compliance with UL and DOE 2016 requirements.
Key specs include a 30 kVA three-phase rating at 60 Hz, primary 480 V, secondary 208Y/120 V, insulation rated to 220 °C, and 80 °C rise with a 42 dB sound level. The K-Factor 13 designation indicates robust handling of nonlinear loads, while DOE 2016 efficiency and UL listing confirm regulatory and safety alignment for ongoing plant operation.
Yes. It is designed for 480 V to 208Y/120 V step-down in three-phase systems, delivering stable voltage with a 30 kVA capacity. Its copper windings and 80 °C rise performance support reliable operation under continuous duty in manufacturing lines, presses, and automated equipment, while the NEMA 2 enclosure protects indoors in typical plant environments.
The unit is UL Listed and DOE 2016 Efficient, with a 10 CFR Part 431 designation noted on catalog notes. This combination ensures compliance with safety standards and energy efficiency requirements, aiding procurement and regulatory audits while supporting eco-friendly plant operations.
Expected ROI stems from lower energy losses due to DOE 2016 efficiency, cooler operation reducing thermal stress, and longer service life from copper windings and optimized insulation. Maintenance is typically minimal, focusing on periodic insulation checks, tap setting verification, and mounting security; reduced downtime during loads and transitions further improves plant productivity.