Eaton N48M28F1221CS Transformer - UL Listed, K-Factor
Part Number: N48M28F1221CS
Quick Summary
Eaton K-Factor nonlinear ventilated transformer is engineered to provide efficient, reliable power distribution for 3-phase industrial facilities. Engineers confront heat management, efficiency penalties, and footprint pressure when expanding or upgrading plant power systems. This model meets DOE2016 Efficient standards, is UL Listed for safety, and includes K13 features to minimize thermal rise under variable loads. By combining rugged ventilation with a compact footprint, it reduces cooling needs and energy waste while fitting into existing substations, panel rooms, and switchgear. With 480 V primary and 208Y/120 V secondary, it integrates with standard plant electronics and motor drives, enabling reliable control of critical processes. Better protection against harmonic heating and a well-documented installation procedure support faster commissioning.
Product Information
Extended Description
N48M28F1221CS Eaton: Eaton NextGen K-Factor, DOE2016 CU-Shield, 112.5KVA, K13 XFMR, 3PH, 480-208Y/120, 115C
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28F1221CS
UPC
786689670634
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
283B
Type
Energy-efficient ventilated transformer
Frame
943
Kva Rating
112.50 kVA
Volt ampere rating
112.5KVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
115 °C rise
Special features
K13
Feature: K-Factor nonlinear ventilation improves thermal balance under nonlinear loads by adapting cooling airflow to load profile. Business Impact: reduces hotspot risk, lowers cooling energy consumption, and extends transformer life by preventing local overheating. Application: ideal for facilities with harmonic-generating equipment, variable-speed drives, and mixed loads where stable temperature is critical. Feature: DOE2016 Efficient compliance reduces core and copper losses and supports enterprise energy-management goals. Business Impact: measurable energy cost savings across shifts, lower peak demand charges, and a smaller environmental footprint for sustainability reporting. Application: manufacturing floors, data centers, and process plants pursuing energy certifications, incentives, or return-on-investment targets, especially where retrofits must minimize downtime. Feature: UL Listed certification provides safety, reliability, and traceability across the supply chain. Business Impact: simplifies procurement, streamlines installation approvals, and supports compliance audits and insurance requirements. Application: industrial facilities, code-compliant building projects, and retrofit programs where standardized labeling and test data improve risk management. Feature: Three-phase 480 V primary to 208Y/120 V secondary output enables seamless integration with common plant mains and downstream distribution. Business Impact: reduces wiring complexity, minimizes redundancies, and accelerates project timelines by using standard components. Application: switchgear, panelboards, substations, and mid-range load centers in manufacturing, automotive, and process industries where reliable voltage conversion is critical. Feature: Precise footprint and mounting compatibility—31.5 in depth, 34.5 in width, 51 in height; weight 1200 lb; wiring connection 283B; and frame 943. Business Impact: predictable installation planning, safer handling in crowded equipment rooms, easier forklift routing, and lower on-site labor costs during commissioning. Application: retrofit projects and new builds with space-constrained footprints, where a robust, ready-to-install transformer simplifies logistics. Feature: K13 special features and an 115 °C rise specification provide thermal margin under high ambient and harmonic stress. Business Impact: improved uptime, greater resilience to faults, extended maintenance intervals, and predictable performance in harsh environments. Application: areas with limited cooling capacity, high ambient temperatures, or aggressive loads that require robust protection.
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FAQs
For installation, ensure a ventilated space with clearances around the 31.5 in depth, 34.5 in width, and 51 in height enclosure. Use the standard 283B wiring connection and secure the 1200 lb frame 943 mount in a vibration-free location. Verify UL Listed compliance and ensure dedicated feeds with appropriate overcurrent protection. Plan for service access and cooling path to sustain the 115 °C rise rating under peak loads.
The N48M28F1221CS provides 112.5 kVA, 3-phase operation, with a 480 V primary and a 208Y/120 V secondary. This aligns with common plant mains, simplifying distribution to 208 V networks. The K-Factor nonlinear design helps manage harmonic currents, while the 115 °C rise and DOE2016 Efficient features support reliable operation and energy efficiency across loading scenarios.
Yes. It adheres to DOE2016 Efficient standards, reducing losses across operating ranges, and is UL Listed for safety and reliability. These certifications simplify compliance with procurement policies, enable smoother inspections, and support long-term maintenance planning in manufacturing plants, data centers, and other industrial facilities.
This transformer is well-suited for panelboards, switchgear, and substations serving mid-range loads in manufacturing, automotive, and process industries. The 112.5 kVA rating and 480 V to 208Y/120 V output support reliable distribution to control circuits and drives, with K-Factor ventilation assisting harmonic management and temperature control in demanding environments.
Expect energy savings from DOE2016 efficiency, plus lower cooling costs due to improved thermal management. Maintenance focuses on vent integrity, wiring connections, and adherence to safety labeling; factory testing and documented installation procedures reduce commissioning time and support predictable uptime. The UL Listed certification further contributes to lower risk and easier long-term service planning.