Eaton N48D28F4521 Transformer - K-Factor Nonlinear UL Listed
Part Number: N48D28F4521
Quick Summary
The Eaton N48D28F4521 Transformer provides K‑Factor nonlinear power conditioning for three‑phase industrial systems. Engineers dealing with harmonic-rich loads know heat, voltage distortion, and unexpected downtime can derail projects. UL Listed safety certification provides regulatory confidence, while the K-Factor design helps manage harmonics under demanding service. Designed for power distribution in automation and manufacturing, this transformer integrates with common 480/208Y‑120 systems to improve reliability and efficiency. With a 45 kVA rating and three-phase capability, it supports mid-sized equipment, motor drives, and industrial controls. Cooling is optimized by a vented XFMR design (K13), which reduces hotspot formation in crowded electrical rooms. UL Listed status supports procurement and installation in facilities that require recognized safety markings, while standard voltage configuration aligns with existing switchgear.
Product Information
Extended Description
N48D28F4521 Eaton: Eaton K-Factor nonlinear ventilated transformer, 45 kVA, K13 Vented XFMR, Three-phase, 480-208Y/120
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48D28F4521
UPC
786689664053
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
K-Factor nonlinear design targets harmonic currents, reducing peak temperatures and extending transformer life. This translates to fewer unscheduled outages and lower maintenance costs for automated lines and process equipment. The 45 kVA rating supports a broad range of automation gear, motor drives, and panelboard assemblies, providing a compact yet scalable power solution for growing production lines. The three-phase 480-208Y/120 configuration ensures compatibility with common industrial power systems, simplifying panel design and reducing installation time for machine rooms and switchgear upgrades. Vented XFMR construction (K13) improves cooling under high load, delivering lower hotspot risk in crowded electrical spaces and boosting reliability in hot environments. UL Listed certification provides procurement confidence and regulatory compliance, streamlining audits and project sign‑offs. Dimensional footprint of 24 in L × 30.5 in W × 36.88 in H with a 658 lb weight enables reliable mounting in standard electrical cabinets and equipment rooms, supporting retrofit projects and new installations alike.
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FAQs
The N48D28F4521 is designed for 480-208Y/120 three-phase power networks, matching common industrial outlets and switchgear. Its 45 kVA rating supports mid‑size automation equipment and VFDs, while the UL Listed certification simplifies procurement and compliance. When planning, verify panel clearance and wiring routes to maintain proper ventilation and easy service access.
Key specs include a 45 kVA rating, three-phase configuration, primary/secondary arrangement of 480-208Y/120, and an estimated footprint of 24 in L × 30.5 in W × 36.88 in H with a weight around 658 lb. It features a K-Factor nonlinear design and K13 vented construction, along with UL Listed certification for safety compliance.
Yes. The transformer implements a K-Factor nonlinear design that helps manage harmonic currents, reducing heat rise and improving power quality in systems with harmonic producing loads such as VFDs and motor drives. This translates to fewer thermal issues and more stable operation in automated lines and controls.
The N48D28F4521 is UL Listed, confirming compliance with safety standards for electrical equipment. This designation supports safer installations and smoother procurement processes. No CE, SIL, or IP data is specified in the provided product data, so verify needed certifications with the supplier if your project requires them.
The combination of a K-Factor nonlinear design and vented cooling reduces thermal stress and extends equipment life, which lowers maintenance frequency and replacement risk. In addition, the UL Listed certification simplifies audits and procurement, accelerating project timelines and improving uptime for automation architectures in manufacturing environments.