Eaton N48M28F1221CU K-Factor Transformer - UL Listed
Part Number: N48M28F1221CU
Quick Summary
The N48M28F1221CU Eaton transformer delivers nonlinear, ventilated power conversion for data centers and manufacturing lines. Engineers face heat, efficiency, and uptime challenges when upgrading legacy systems, making reliability non-negotiable. This model carries DOE2016 Efficient performance and UL Listed certification, signaling compliance and protective standards in demanding environments. The compact yet robust design supports three-phase distribution with a 480 V primary and 208Y/120 V secondary, enabling seamless integration with existing switchgear. By optimizing cooling and reducing losses, it lowers total cost of ownership while maintaining service continuity. In practice, it pairs well with modern energy-management strategies and standard factory automation architectures.
Product Information
Extended Description
N48M28F1221CU Eaton: Eaton NextGen K-Factor, DOE2016 CU, 112.5KVA, K13 XFMR, 3PH, 480-208Y/120, 115C
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28F1221CU
UPC
786689671075
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
DOE2016 Efficient performance and UL Listed certification define the baseline compliance and operating cost profile for the N48M28F1221CU. This translates to lower energy waste and simplified audits for facilities targeting energy-management goals. It’s well suited for data centers and manufacturing lines seeking measurable efficiency gains without sacrificing reliability. K-Factor nonlinear ventilated design addresses harmonic-rich loads found in drives and PLCs. Business impact: reduces thermal stress and improves continuous operation in demanding plants. Application: factory floors with variable loads, VFDs, and data-center hybrids. Three-phase 480 V primary and 208Y/120 V secondary simplify wiring, improve voltage regulation, and reduce panel counts. Impact: streamlined installation and improved system reliability. Application: retrofit or new builds in automation hubs. Wiring connection 283B, frame 943, and large dimensions facilitate secure mounting and integration with standard switchgear. Impact: reduces project risk and expedite commissioning. Application: mechanical layouts with restricted space and diverse enclosure requirements. Temperature rise of 115 °C provides design margin for hot environments. Impact: supports operation under elevated ambient temperatures with robust cooling strategies. Application: harsh industrial environments where cooling is a constant consideration.
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FAQs
Plan for the unit's substantial footprint and weight: approximately 31.5 in deep, 51 in tall, 34.5 in wide, and about 1200 lb. Use the 283B wiring connection and frame 943 mounting as reference points. Ensure adequate cooling airflow, clearance for service access, and compliance with electrical codes. Verify compatibility with existing switchgear and enclosure space before ordering.
The N48M28F1221CU is a 112.5 kVA, three-phase transformer with a 480 V primary and 208Y/120 V secondary. It features a 115 °C rise and adheres to DOE2016 Efficient standards while carrying UL Listed certification. Wiring is configured for 283B, and the unit aligns with standard frame 943, providing predictable voltage regulation and dependable service under load.
Yes. Its K-Factor nonlinear ventilated design mitigates heat from harmonic-rich loads typical of drives and automation equipment. The 480 V to 208Y/120 V configuration supports common data-center and factory automation topologies, while DOE2016 efficiency and UL listing help meet ongoing compliance, energy, and safety requirements for mission-critical environments.
Key certifications are UL Listed and DOE2016 Efficient. UL Listing confirms electrical safety and compliance with recognized standards, while DOE2016 Efficient certification reflects energy-performance criteria for reducing losses. The K13 feature also signals transformer design intent for energy efficiency and reliable harmonic handling in industrial settings.
Expect lower operating costs thanks to DOE2016 efficiency, plus improved reliability from a ventilated cooling design that reduces thermal wear. Routine checks should focus on cooling airflow, wiring integrity at 283B connections, and mounting security. Long-term ROI is driven by energy savings, reduced heat-related downtime, and compatibility with existing automation and switchgear investments.