Eaton N48M28T4521CU K-Factor nonlinear ventilated transformer - UL Listed
Part Number: N48M28T4521CU
Quick Summary
The Eaton N48M28T4521CU transformer provides K-Factor nonlinear ventilation for three-phase power distribution in industrial facilities. With dense electrical rooms and tight cabinets, overheating and maintenance costs are common pain points for engineers. UL Listed certification backs safety and reliability in critical environments, while K-Factor design supports harmonic-rich loads. This combination reduces footprint and boosts uptime, helping OEMs and maintenance teams meet project timelines and cost targets. Engineered for 480-208Y/120 three-phase service and a compact vented enclosure, it supports easier installation and improved cooling efficiency in switchgear rooms. By combining a robust 45 kVA rating with UL Listed safety, it aligns with standard electrical design and procurement workflows. In addition, its ventilated design helps meet demanding continuous-running applications and reduces cooling-related energy use over the life of the asset.
Product Information
Extended Description
N48M28T4521CU Eaton: Eaton K-Factor nonlinear ventilated transformer, K13 Vented XFMR, Three-phase, 480-208Y/120, 45 kVA
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T4521CU
UPC
786689664183
Product Length/Depth
21.13 in
Product Height
36.88 in
Product Width
24.88 in
Product Weight
430 lb
Certifications
UL Listed
Type
Vented XFMR
Kva Rating
45 kVA
Phase
Three-phase
Feature → Business Impact → Application: The N48M28T4521CU uses a K-Factor nonlinear ventilated design to improve harmonic handling and overall thermal performance. This enhances reliability and extends service life by reducing overheating in compact electrical rooms, ideal for motor control centers and switchgear rooms where dense installation and harmonic loads are common. Feature → Business Impact → Application: 45 kVA three-phase rating supports higher starting currents and diversified loads without over-sizing, enabling scalable power distribution in data centers, manufacturing lines, and industrial facilities. The 480-208Y/120 configuration aligns with common facility power systems for quick procurement and seamless integration. Feature → Business Impact → Application: Ventilated XFMR enclosure coupled with UL Listed safety simplifies installation, strengthens compliance, and promotes safer operation across multiple sites, benefiting OEMs and system integrators working with diverse gear. Feature → Business Impact → Application: Standard footprint and compatibility with Eaton and third-party switchgear enables easy retrofit and faster specification, reducing lifecycle costs for maintenance programs and facility upgrades. Feature → Business Impact → Application: In harmonics-aware power distribution, vented K-Factor transformers are favored to meet reliability and energy efficiency targets, supporting project ROI and long-term energy savings. This model’s UL Listed certification supports procurement and compliance in regulated markets.
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FAQs
The N48M28T4521CU is designed for 480-208Y/120 three-phase service, with standard 3-phase connections and a compact vented enclosure. It supports typical primary-to-secondary configurations used in motor control centers and switchgear rooms, enabling straightforward integration with Eaton and non-Eaton components. Verify circuit breaker ratings, bus duct clearances, and compatible insulation class before field installation.
Feature-driven thermal design reduces hotspot risk by promoting air flow around windings, improving cooling efficiency in dense electrical rooms. This lowers operating costs and extends component life by mitigating overheating. Applications include motor control centers, switchgear rooms, and panelboards where harmonic loads and space constraints are common.
UL Listed certification confirms safety and performance compliance for electrical equipment in industrial environments. While this model explicitly lists UL Listed, projects may require additional CE or IP ratings depending on regional deployment. If needed, verify a site-specific certificate package and ensure documentation aligns with your procurement standards and compliance requirements.
The N48M28T4521CU is rated at 45 kVA for three-phase distribution in facilities with moderate to high load. This rating suits motor starting, panelboards, and switchgear feeding critical loads where harmonic content is managed by K-Factor design. Use in data centers or manufacturing lines can improve reliability and reduce overall energy waste when paired with proper protective devices.
With 45 kVA capacity and UL Listed safety, you gain improved uptime and reduced maintenance disruptions from fewer overheating events and longer service intervals. The ventilated design lowers cooling energy, contributing to lower total cost of ownership. For projects, plan for standard inspection cycles and easy retrofits in existing switchgear to maximize ROI.