Eaton N48M28B4916CU K-Factor nonlinear transformer DOE2016
Part Number: N48M28B4916CU
Quick Summary
N48M28B4916CU is a K-Factor nonlinear ventilated transformer used for industrial power distribution. Facilities face overheating, heat-generated losses, and space constraints that drive maintenance costs and downtime. UL Listed and 10 CFR Part 431 DOE 2016 Efficient compliance are supported by an NEMA 2 enclosure, FR945 frame, and copper windings, ensuring rugged reliability in harsh environments. This model delivers high efficiency and compact integration for automation and control cabinets, with a three-phase 150 kVA rating and a clear path to scalable power distribution. By combining robust protection with industry-leading efficiency, it reduces energy waste, simplifies spec compliance, and supports streamlined installation in new builds or retrofits.
Product Information
Extended Description
N48M28B4916CU Eaton: Eaton Eaton K-Factor nonlinear ventilated transformer, Copper windings, NEMA 2, FR945, 60 Hz, 220°C, 150 kVA , Three-phase, 480 Delta V, 208Y/120 Vac, NEMA ST-20, 80°C, 150 kVA, 480 Vac-208Y/120 Vac, WS62, 283B, DOE 2016
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B4916CU
UPC
786680193033
Product Length/Depth
33.5 in
Product Height
66.18 in
Product Width
42.18 in
Product Weight
1.1 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
FR945
Insulation
220 °C
Mounting
Floor or wall
Tap size
2 at +2.5%, 4 at -2.5%
Frequency rating
60 Hz
Kva Rating
150 kVA
Volt ampere rating
150 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
WS62
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Eaton Specification Sheet - N48M28B4916CU
Copper windings and a robust FR945 frame deliver high current capability with reduced cesium-like heat buildup, translating to lower energy losses and cooler operation in demanding automation environments. This directly improves reliability in control cabinets and reduces cooling costs in manufacturing lines. The transformer complies with DOE 2016 efficiency standards and UL safety certification, providing procurement teams with confidence and faster cycle times for regulated facilities. A rugged NEMA 2 enclosure offers dependable protection against dust, moisture, and incidental splash, enabling floor or wall mounting in crowded plant spaces without compromising accessibility for maintenance. Tap settings (2 at +2.5%, 4 at -2.5%) enable precise voltage regulation to stabilize PLCs and drives amid supply fluctuations. The 60 Hz, three-phase 480 V primary and 208Y/120 V secondary support common industrial layouts, minimizing integration risk and enabling scalable power distribution across lines. K-Factor 13 features mitigate harmonic distortion from modern drives, reducing heating, extending insulation life, and preserving system efficiency in high-load scenarios. The electrostatic shield and WS62 weather shield option enhance EMI control and outdoor resilience for industrial environments, while copper windings ensure superior conductivity and long-term thermal performance for continuous operation in harsh plants.
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FAQs
Installers should plan for floor or wall mounting within a protective NEMA 2 environment. Ensure adequate clearance for cooling and access to taps, respect the 480 V primary supply, and integrate with 208Y/120 V secondary circuits to support PLCs, drives, and control cabinets. The enclosure design supports rugged plant conditions and facilitates serviceability.
The unit provides a 480 V primary voltage with a 208Y/120 V secondary. Tap settings are available at 2 at +2.5% and 4 at -2.5% to aid voltage regulation under load, helping to stabilize downstream equipment and reduce voltage-related performance issues in automation systems.
Yes. The N48M28B4916CU is DOE 2016 Efficient compliant and UL Listed, aligning with energy-performance requirements and safety certifications that streamline procurement and regulatory reporting for industrial facilities.
Yes. The K-Factor of 13 is designed to mitigate harmonic heating from modern drives and PLCs, maintaining lower operating temperatures and preserving insulation life in harmonics-heavy environments.
Common use cases include automation panels, machine controls, and process lines requiring stable 208Y/120 V secondary from a 480 V supply. ROI benefits come from improved efficiency (DOE2016), reduced cooling loads, and extended equipment life due to better harmonic management and protections in a rugged NEMA 2 enclosure.