Eaton N48M28B4516CU K-Factor Transformer - UL Listed
Part Number: N48M28B4516CU
Quick Summary
Eaton N48M28B4516CU is a high-efficiency three-phase transformer for industrial power distribution. It addresses common challenges of energy waste, heat management, and space constraints in modern facilities. This unit carries UL Listed certification and meets DOE 2016 efficiency requirements, with a rugged NEMA 2 enclosure designed for reliable service in demanding environments. As a copper-windings, floor- or wall-mountable solution, it aligns with low-voltage dry-type distribution strategies while delivering consistent voltage levels and protection for critical loads. For engineers and procurement teams, the combination of documented performance and practical installation benefits translates to lower lifecycle costs and smoother compliance workflows.
Product Information
Extended Description
N48M28B4516CU Eaton: Eaton Eaton K-Factor nonlinear ventilated transformer, Copper windings, NEMA 2, FR942, 60 Hz, 220°C, 45 kVA , Three-phase, 480 Delta V, 208Y/120 Vac, NEMA ST-20, 80°C, 45 kVA, 480 Vac-208Y/120 Vac, WS59, 283B, DOE 2016
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B4516CU
UPC
786680193057
Product Length/Depth
24 in
Product Height
43 in
Product Width
30.5 in
Product Weight
703 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Compliances
DOE2016 Efficient
Certifications
UL Listed
Catalog Notes
10 CFR Part 431 (2016) Efficient
Coil material
Copper
Enclosure
NEMA 2
Wiring connection
283B
Type
Energy-efficient ventilated transformer
Frame
FR942
Insulation
220 °C
Mounting
Floor or wall
Tap size
2 at +2.5%, 4 at -2.5%
Frequency rating
60 Hz
Kva Rating
45 kVA
Volt ampere rating
45 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Sound Level
NEMA ST-20
Temperature rise
80 °C rise
Voltage rating
480 Vac-208Y/120 Vac
Efficiency
10 CFR Part 431-2016 (DOE 2016)
Modification 1
Electrostatic shield
Special features
K-factor 13
Weathershield
WS59
Eaton's low-voltage dry-type distribution transformers
Eaton's low-voltage dry-type distribution transformers
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28B4516CU
Feature: Copper windings and robust FR942 frame deliver low resistance and improved thermal performance → Business Impact: Higher efficiency and reduced heat generation, which lowers cooling costs in equipment rooms and panels → Application: Ideal for 45 kVA, 60 Hz, 480 V to 208Y/120 V distribution in manufacturing floors and control panels. Feature: 60 Hz three-phase operation with 480 V primary and 208Y/120 V secondary → Business Impact: Seamless integration with standard industrial power systems, minimizing on-site voltage conversion investments → Application: Data centers, machine builders, and process automation where stable power is critical. Feature: NEMA 2 enclosure and floor or wall mounting → Business Impact: Flexible installation in rugged environments and compact footprints, reducing space planning complexity → Application: Plant rooms, electrical closets, and equipment cabinets requiring durable protection. Feature: Tap settings 2 at +2.5% and 4 at -2.5% → Business Impact: Fine voltage regulation reduces equipment stress and improves load performance → Application: Panels with variable load profiles and sensitive electronics. Feature: 45 kVA rating, copper coil material, 80 °C rise, 220 °C insulation → Business Impact: High reliability under peak loads with durable insulation margins → Application: Industrial power distribution where continuous 45 kVA support is required. Feature: DOE 2016 Efficient compliance and UL Listed certification → Business Impact: Regulatory alignment and market acceptance, with proven energy efficiency → Application: Commercial and industrial facilities aiming for compliance-driven procurement. Feature: Electrostatic shield modification and WS59 weather shield option → Business Impact: Improved EMI control and outdoor or harsh-environment versatility → Application: Control panels near heavier electrical noise sources or exterior installations. Feature: 283B wiring, 480 V primary, 208Y/120 V secondary → Business Impact: Standardized wiring reduces installation time and compatibility risk → Application: OEM integration and retrofit projects across multiple end-markets.
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FAQs
The N48M28B4516CU is designed for 480 V primary and 208Y/120 V secondary in a three-phase configuration. It provides a 45 kVA rating and includes taps at +2.5% and -2.5% to fine-tune output. Copper windings and a FR942 frame support reliable operation, while the NEMA 2 enclosure offers protection in industrial environments.
This transformer complies with DOE 2016 efficiency requirements and is UL Listed, ensuring recognized safety and performance standards. It also follows 10 CFR Part 431 (2016) Efficient guidelines, aligning with federal efficiency mandates for commercial and industrial equipment.
Weighing approximately 703 lb with a rugged FR942 frame, the unit is designed for floor or wall mounting in spaces that require sturdy, vibration-resistant installation. The NEMA 2 enclosure provides suitable environmental protection, and 283B wiring simplifies integration with existing panel and bus configurations.
Common applications include factory automation panels, machine control centers, data centers, and general-purpose industrial power distribution. Its 45 kVA rating, stable 480 V to 208Y/120 V outputs, and K-Factor capabilities make it suitable for loads with non-linear harmonics and demanding control systems.
Maintenance benefits from solid copper windings, robust insulation (220 °C), and a proven electrostatic shield option. The WS59 weather shield variant extends service in harsher environments. Warranty follows Eaton policy, with typical coverage for one year from installation or 18 months from shipment, whichever occurs first, aiding lifecycle budgeting.