Eaton N48D28T1221CUSRLS50 K-Factor Transformer - UL Listed
Part Number: N48D28T1221CUSRLS50
Quick Summary
The Eaton N48D28T1221CUSRLS50 is a high-efficiency K-Factor ventilated transformer for three‑phase power distribution. Upgrading large facilities often stalls on heat management, energy loss, and space constraints. UL Listed and DOE2016 Efficient compliant, this unit supports safety, performance, and regulatory alignment. With a 112.50 kVA rating, 480 V primary and 208Y/120 V secondary, it delivers reliable power while enabling cost-effective installation. Designed for manufacturing, data centers, and heavy industry, it helps reduce operating expenses through improved efficiency and cooler operation.
Product Information
Extended Description
N48D28T1221CUSRLS50 Eaton: Eaton NG K-Factor DOE2016 CU SR-RPT 50dB, D-Tap, 112.5KVA, K13 XFMR, 3PH, 480-208Y/120, 150C
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48D28T1221CUSRLS50
UPC
786689670429
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
305K
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
150 °C rise
Special features
K13
Feature → DOE2016 Efficient design paired with K-Factor nonlinear venting reduces losses during fluctuating loads. This translates to lower energy costs and cooler ambient temperatures, extending unit life and reducing cooling demand in mid- to high-density racks and equipment rooms. Application: suitable for manufacturing floors, process plants, and data centers where load profiles swing and heat rejection is a constraint. Feature → UL Listed safety certification provides validated protection and compliance with electrical codes. Business impact: lowers risk of field failures and simplifies procurement with a trusted approval. Application: any regulated installation, from industrial substations to healthcare facilities and critical infrastructure. Feature → 112.50 kVA rating with 480 V primary and 208Y/120 V secondary delivers scalable power for mid-size loads. Business impact: reduces need for multiple smaller transformers and simplifies feeder planning. Application: motor drives, control panels, and panel boards in OEM lines and distribution rooms. Feature → Three-phase design and 150 °C temperature rise with ventilated enclosure enhance thermal resilience. Business impact: maintains voltage stability under peak loads, improves uptime, and supports longer maintenance intervals. Application: high-ambient environments and duty cycles with frequent start/stop cycles in machining centers and packaging lines. Feature → Robust frame and mounting footprint with 31.5 in length, 34.5 in width, and 51 in height, weight around 1200 lb. Business impact: clear installation planning and reliable mounting; compatibility with standard electrical rooms and forklift-friendly handling. Application: retrofit projects and new builds requiring standardized footprint and site readiness.
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FAQs
The transformer is a three-phase unit rated at 112.50 kVA with a 480 V primary and a 208Y/120 V secondary. It connects to standard switchgear and distribution panels using a 305K winding connection. With a 1200 lb frame and a footprint of 31.5 in by 34.5 in by 51 in, it accommodates typical industrial feeder routing while maintaining service continuity.
This unit carries UL Listed certification and complies with DOE2016 Efficient standards, ensuring safety, reliability, and energy performance. The K-Factor nonlinear ventilated design further supports compliance with industry harmonic and thermal management expectations, making it suitable for regulated environments and mission-critical applications.
Yes. With a 112.50 kVA rating, three-phase configuration, 480 V to 208Y/120 V secondary, and a 150 °C rise, it is well suited for data centers, manufacturing lines, and other load-dense facilities. Its ventilated design helps manage heat from diverse equipment, while the DOE2016 efficiency and UL listing support uptime and reliability.
Plan for its substantial weight (about 1200 lb) and footprint (31.5 in L x 34.5 in W x 51 in H). Ensure access for forklift handling, proper ventilation, and enough clearance for serviceability. The product uses a 305K wiring connection and a robust frame (943) to fit standard industrial rooms and mounting configurations.
K-Factor nonlinear venting focuses on managing losses under non-linear load profiles, reducing overheating risk and improving thermal stability. This translates to lower cooling requirements, better voltage regulation under peak loads, and extended transformer life. In practice, you’ll see improved uptime, fewer maintenance events, and reduced long-term operating costs.