Eaton N48M28T4521CULS45 K-Factor Transformer - UL Listed
Part Number: N48M28T4521CULS45
Quick Summary
The N48M28T4521CULS45 is an Eaton K-Factor nonlinear ventilated transformer for three-phase power distribution in industrial facilities. The design addresses the persistent challenge of harmonic-rich loads and heat buildup that threaten uptime. UL Listed certification, K13 K-Factor capability, and a 45 kVA rating provide regulatory confidence, harmonic control, and scalable power. By combining robust ventilation, compact footprint, and Eaton support, the solution improves uptime, reduces maintenance, and simplifies procurement workflows. Industrial environments demand reliable power conditioning for sensitive drives and controls. With 3-phase 480-208Y/120 secondary and UL recognition, it integrates smoothly with Eaton or third-party panels and minimizes integration risk. This makes it a compelling choice for investors seeking long-term reliability and predictable maintenance budgets.
Product Information
Extended Description
N48M28T4521CULS45 Eaton: Eaton K-Factor nonlinear ventilated transformer, K13, 45 kVA, Vented XFMR, 480-208Y/120, 3-phase
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T4521CULS45
UPC
786689664206
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: K-Factor nonlinear design (K13) neutralizes a broad spectrum of harmonic currents generated by non-linear loads such as variable-frequency drives, servo drives, and high-efficiency power supplies. Business Impact: This targeted harmonic management maintains voltage stability, reduces stray heating in windings, and lowers annual maintenance costs by mitigating thermal aging and insulation stress. Application: Ideal for automation panels, machine rooms, and production lines where harmonic content is persistent and uptime is mission-critical. Feature: Vented XFMR construction with optimized airflow provides robust cooling, even in hot plant environments. Business Impact: Lowered thermal rise translates into fewer deratings, improved efficiency, and longer service life for critical windings and cooling components. Application: Particularly valuable on hot factory floors, near CNC machines, or in areas with limited HVAC capacity where additional cooling headroom is beneficial. Feature: 45 kVA, three-phase rating with a 480-208Y/120 secondary aligns with common plant electrical architectures. Business Impact: Simplifies integration with existing switchgear and panel boards, reduces the need for oversized transformers, and improves efficiency by matching load profiles. Application: Suitable for manufacturing lines, automation closets, and process-control rooms that require dependable power conditioning and straightforward wiring schemes. Feature: UL Listed certification provides formal safety and regulatory compliance. Business Impact: Streamlines procurement decisions, supports audits, and reduces supplier qualification risk across regulated environments. Application: Essential for facilities guided by electrical codes, manufacturers with strict supplier requirements, and engineers designing compliant power networks for automation projects. Feature: Compact footprint and robust physical envelope—24 in depth, 30.5 in width, 36.88 in height; weight about 658 lb—designed for reliable installation in constrained spaces. Business Impact: Eases mounting on floors or within equipment rooms, simplifies logistics, and minimizes additional structural or cabling costs. Application: Retrofit installations, machine-room upgrades, or panel enclosure upgrades where footprint and weight constraints are decisive.
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FAQs
To integrate this 45 kVA, three-phase transformer, verify the secondary rating of 480-208Y/120 and ensure the primary voltage aligns with your incoming service. Confirm terminal types, torque specs, and conduit routing, and provide adequate clearance for ventilation. The vented XFMR design supports improved airflow, which simplifies cooling-assisted commissioning and long-term reliability when paired with Eaton or compatible switchgear.
The K-Factor nonlinear design (K13) targets nonlinear harmonic currents from drives, power supplies, and similar equipment, limiting secondary voltage distortion and associated losses. This improves regulatory compliance, reduces overheating, and lowers the risk of nuisance trips. In practice, it stabilizes power quality for sensitive automation equipment and drives control on busy production lines.
Yes. The N48M28T4521CULS45 provides 45 kVA of three-phase capacity with a standard 480-208Y/120 secondary, which suits mid-range data center auxiliary power and automation panels. Its K-Factor design helps manage harmonic loads from VFDs and drives, while the vented enclosure maintains cooling. This combination supports reliable uptime for critical automation and equipment rooms.
UL Listed confirms adherence to recognized safety standards, streamlining procurement and simplifying audits. It signals regulatory readiness for electrical installations and ongoing compliance. For maintenance, follow Eaton's datasheet, ensure proper ventilation, verify connections, and document testing during commissioning to sustain compliance and reduce risk during inspections.
Investing in the N48M28T4521CULS45 yields ROI through improved power quality, reduced downtime, and longer winding life due to better thermal management. Expect fewer unscheduled outages from harmonic-related trips and maintenance events. With Eaton support and UL Listed assurance, total cost of ownership improves through predictable maintenance budgets and reliable performance over the asset lifecycle.