Eaton N48D28B4516CU Transformer - DOE2016 Efficient
Part Number: N48D28B4516CU
Quick Summary
The Eaton N48D28B4516CU transformer delivers efficient power conversion for 3-phase industrial systems. Facilities often struggle with heat, energy waste, and the burden of staying compliant across evolving standards. UL Listed safety certification, DOE2016 efficient performance, and 10 CFR Part 431 efficiency notes give plants a clear path to reliable operation. With copper windings, a K-Factor of 13, and a NEMA 2 enclosure, this unit balances rugged durability with energy savings. Designed for floor or wall mounting in modern facilities, it aligns with procurement goals and lifecycle cost reductions while delivering dependable power for critical loads.
Product Information
Extended Description
N48D28B4516CU Eaton: Eaton Eaton K-Factor nonlinear ventilated transformer, Copper windings, NEMA 2, FR942, 60 Hz, 220C, 45 kVA, Three-Phase, 480 to 208Y/120, 80C rise, Shielded, DOE 2016, WS59, 305K, K13
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48D28B4516CU
UPC
786680245121
Product Length/Depth
24 in
Product Height
43 in
Product Width
30.5 in
Product Weight
703 lb
Compliances
DOE2016 Efficient
Certifications
UL Listed
Catalog Notes
10 CFR Part 431 (2016) Efficient
Coil material
Copper
Enclosure
NEMA 2
Wiring connection
305K
Type
Energy-efficient ventilated transformer
Frame
942
Insulation
220 °C
Mounting
Floor or wall, upright only
Tap size
2 at +2.5%, 2 at -2.5%
Frequency rating
60 Hz
Kva Rating
45 kVA
Volt ampere rating
45 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Sound Level
NEMA ST-20
Temperature rise
80 °C rise
Efficiency
10 CFR Part 431-2016 (DOE 2016)
Modification 1
Electrostatic shield
Special features
K-factor 13
Weathershield
WS59
Feature: Copper windings provide lower resistive losses and improved thermal performance → Business Impact: Reduces I²R losses and heat generation, extending transformer life and lowering cooling costs → Application: Ideal for continuous operation in manufacturing lines and service bays. Feature: K-Factor 13 nonlinear capability → Business Impact: Better harmonic handling reduces voltage distortion and panel loading → Application: Suitable for facilities with nonlinear loads such as drives and rectifiers in machine rooms. Feature: NEMA 2 enclosure with floor or wall mounting → Business Impact: Flexible installation options and robust protection in dry indoor environments → Application: Simplifies retrofits in control panels and electrical rooms. Feature: Tap changer 2 at +2.5%, 2 at -2.5% → Business Impact: Precise voltage regulation improves downstream equipment performance and reduces component stress → Application: Critical for sensitive PLCs and instrumentation zones. Feature: 480 V primary, 208Y/120 V secondary, three-phase, 60 Hz, 45 kVA → Business Impact: Standardized distribution compatibility minimizes wiring changes and improves reliability → Application: Common in plant distribution, data centers, and automation loops. Feature: Electrostatic shield, WS59 weathershield option, UL Listed, DOE2016 Efficient → Business Impact: EMI reduction, weather protection, and regulatory compliance → Application: Environments requiring shielded operation and advanced efficiency.
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FAQs
What mounting options are available and what clearances are required? The unit uses floor or wall mounting with upright orientation and a 24 in depth footprint. Plan for sufficient floor loading, access for connections to 480 V primary and 208Y/120 V secondary, plus space for service clearances and ventilation. Verify enclosure is NEMA 2 compliant for indoor dry environments and confirm seismic or other site requirements if applicable.
Key specs include 45 kVA rating, 60 Hz operation, copper windings, 80 °C rise, and 3-phase configuration from 480 V to 208Y/120 V. These features reduce thermal stress and improve efficiency, contributing to lower cooling loads, longer service life, and reduced maintenance intervals in typical production lines.
Yes, for loads requiring stable, clean power with harmonic management. The K-Factor 13 nonlinear design helps mitigate harmonics from drives and rectifiers, and the copper windings plus shielding support improved voltage regulation and EMI control, which are beneficial for sensitive instrumentation and data center gear in appropriate load profiles.
This transformer is UL Listed and DOE2016 Efficient, with 10 CFR Part 431 (2016) efficiency notes. Verify building and electrical codes, energy-efficiency requirements, and any facility-specific standards for industrial equipment to ensure full regulatory alignment and optimal lifecycle cost.
Energy efficiency improvements from DOE2016 compliance, combined with lower heat output and reduced cooling needs, translate to lower operating costs. Copper windings and a robust NEMA 2 enclosure support longer service life in typical environments, reducing replacement and maintenance expenditures over time.