Eaton N48D28F4921CU Transformer - DOE2016 Efficient
Part Number: N48D28F4921CU
Quick Summary
The Eaton N48D28F4921CU is a high-efficiency three-phase transformer used to power commercial and industrial systems. The challenge many teams face is balancing reliability, energy spend, and regulatory compliance during large-scale installations. UL Listed safety, DOE2016 Efficient performance, and K-Factor design that mitigates harmonics support safe, efficient operation. This model integrates with Eaton's Power Management & Distribution ecosystem to deliver measurable cost savings and long-term asset value. The unit’s 150 kVA rating and 480 Y/208 V primary offer flexible integration for mixed voltage environments. Designed for tough industrial settings, it supports DOE2016 efficiency targets while meeting UL listing and factory testing expectations. Its compact framing and ventilated design simplify installation in space-constrained electrical rooms. Together, this combination delivers predictable performance across varying loads and ambient conditions.
Product Information
Extended Description
N48D28F4921CU Eaton: Eaton NextGen K-Factor, DOE2016 CU, 150KVA, K13 XFMR, 3PH, 480-208Y/120, 115C
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48D28F4921CU
UPC
786689670917
Product Length/Depth
31.5 in
Product Height
51 in
Product Width
34.5 in
Product Weight
1200 lb
Compliances
DOE2016 Efficient
Certifications
UL Listed
Wiring connection
305K
Type
Energy-efficient ventilated transformer
Frame
943
Kva Rating
150 kVA
Volt ampere rating
150KVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
115 °C rise
Special features
K13
Feature: DOE2016 Efficient design minimizes core and copper losses. Business Impact: reduces energy consumption, lowers heat output, and extends transformer life. Application: ideal for continuous-load applications in manufacturing lines and distribution panels. Feature: K-Factor nonlinear design mitigates harmonic currents. Business Impact: improves power quality, reduces transformer losses, and helps meet harmonic limits in facilities with drives and non-linear loads. Application: data centers, automation rooms, and large motor control centers. Feature: 480 V primary to 208Y/120 V secondary configuration. Business Impact: enables flexible integration with existing plant voltage rails, decreasing the need for intermediate step-downs. Application: panel boards, distribution feeders, and mixed-voltage campuses. Feature: Energy-efficient ventilated cooling and a 115 °C rise rating. Business Impact: supports robust operation under peak loads while controlling cooling costs. Application: space-constrained electrical rooms and high-ambient environments. Feature: UL Listed certification and DOE2016 compliance. Business Impact: ensures regulatory alignment and risk reduction in procurement. Application: industrial facilities, OEM integrations, and critical infrastructure. Feature: Heavy-duty frame and substantial footprint with 31.5 in length, 34.5 in width, 51 in height, and 1200 lb weight. Business Impact: straightforward site planning, secure mounting, and durable service life. Application: power distribution rooms, retrofit projects, and new-build facilities.
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FAQs
The N48D28F4921CU uses a 305K wiring connection as listed in the specifications, with a 480 V primary and a 208Y/120 V secondary configuration. When planning installation, verify terminal accommodations and enclosure clearances per Eaton datasheets. Ensure proper conduit routing and protection for high-power conductors to maintain mechanical integrity and electrical safety.
Yes. The transformer is specified for 480 V primary and 208Y/120 V secondary, three-phase operation, which matches common industrial distribution schemes. Its K-Factor design helps manage harmonics from nonlinear loads, improving power quality. Verify load balance and protection scheme in your switchgear and panel boards during commissioning.
The N48D28F4921CU is UL Listed and features a DOE2016 Efficient rating. These certifications reflect safety compliance and energy-efficiency performance. When sourcing, request the Eaton specification sheet and UL listing documentation to ensure alignment with facility safety programs and regulatory requirements.
K-Factor nonlinear transformers are designed to mitigate harmonic currents generated by nonlinear loads, such as drives and nonlinear power supplies. The benefit is reduced transformer copper losses, lower heating, improved power quality, and less stress on downstream equipment. This translates to longer asset life and fewer maintenance interruptions in demanding production environments.
The unit measures approximately 31.5 in (length) by 34.5 in (width) by 51 in (height) and weighs about 1200 lb. Plan for sufficient clearance around the transformer for cooling and service access, plus a sturdy mounting base. Factor in wiring access, conduit routing, and vibration considerations during layout in electrical rooms.