Eaton N48M28F4521 Transformer - UL Listed
Part Number: N48M28F4521
Quick Summary
The Eaton N48M28F4521 transformer provides reliable three-phase power conversion for large facilities. Engineers often struggle with heat, space, and harmonic distortion in power distribution, increasing maintenance and downtime. UL Listed certification underpins safety, while its K-Factor nonlinear vented design improves cooling. This combination supports scalable power distribution with reliable performance in switchgear rooms and data centers. The unit’s 45 kVA rating and 480-208Y/120 configuration align with common facility subpanels, reducing transformer counts and simplifying procurement. With UL Listed certification and documented dimensions—24 in depth, 30.5 in width, 36.88 in height—planning and installation are straightforward and repeatable. Architects and buyers benefit from accessible datasheet, video guide, and installation support from Eaton.
Product Information
Extended Description
N48M28F4521 Eaton: Eaton K-Factor nonlinear ventilated transformer, 45 kVA, 480-208Y/120, K13 Vented XFMR, Three-phase
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28F4521
UPC
786689664794
Product Length/Depth
24 in
Product Height
36.88 in
Product Width
30.5 in
Product Weight
658 lb
Certifications
UL Listed
Type
Vented XFMR
Kva Rating
45 kVA
Phase
Three-phase
Feature: 45 kVA three-phase rating and 480-208Y/120 V output. Business impact: aligns with standard panel architectures, minimizes spare transformers, and simplifies load planning. Application: ideal for data centers, manufacturing lines, and switchgear rooms needing scalable, modular power distribution. Feature: K-Factor nonlinear design for harmonic-rich loads. Business impact: reduces overheating risk, improves efficiency, and extends service life in environments with nonlinear loads such as VFDs and drives. Application: data centers, automated manufacturing, and process lines where harmonic distortion is a concern. Feature: K13 vented XFMR cooling design. Business impact: enhances cooling performance in space-limited or crowded rooms, enabling higher continuous operation. Application: plant rooms with limited airflow where reliable ventilation matters. Feature: UL Listed certification. Business impact: provides safety compliance, clear documentation for audits, and smoother procurement. Application: engineering specs for industrial power distribution projects, retrofits, and new builds. Feature: Precise dimensions and weight — 24 in depth, 30.5 in width, 36.88 in height; 658 lb. Business impact: facilitates layout planning, mounting, and enclosure compatibility. Application: data centers, control rooms, and industrial spaces with fixed footprints. Feature: Supporting assets like spec sheets and installation videos. Business impact: accelerates commissioning, reduces risk, and improves maintenance readiness. Application: procurement teams and field technicians seeking quick references during install.
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FAQs
Plan for a compact footprint of 24 in depth, 30.5 in width, and 36.88 in height with an approximate 658 lb weight. Ensure adequate ventilation around the vented XFMR, provide 2–3 inches clearance for airflow, and route 480 V primary and 208Y/120 V secondary conductors per local codes. Use only UL-listed wiring practices and reference the OEM installation guide during mounting.
The K-Factor nonlinear design is engineered to handle harmonic components produced by drives and nonlinear loads, reducing heat buildup and improving overall efficiency. This translates to lower cooling requirements, decreased risk of insulation stress, and extended transformer life. It is particularly advantageous in data centers, manufacturing lines, and facilities with VFDs and high-power electronics.
Yes. With a 45 kVA three-phase rating and 480-208Y/120 V output, it integrates with standard power distribution and panel boards commonly found in data centers and factory floors. The K-Factor nonlinear vented design mitigates harmonic heating, helping maintain voltage stability and reliable uptime in environments with concentrated nonlinear loads and dynamic equipment activity.
The N48M28F4521 is UL Listed, confirming compliance with safety and performance standards for electrical equipment. This certification simplifies procurement, aids in audit readiness, and supports code compliance during installation. While other certifications may be pursued, UL Listed status is the primary safety credential documented for this model.
Eaton provides a dedicated specification sheet (Eaton Specification Sheet - N48M28F4521) and installation media such as the Transformer Flex Center video to assist commissioning. These resources include electrical data, mounting guidelines, and wiring instructions, helping field technicians speed up setup, verify connections, and ensure consistent performance across sites.