Eaton N48M28F2216CU Transformer - UL Listed, K-Factor 13
Part Number: N48M28F2216CU
Quick Summary
Eaton K-Factor nonlinear ventilated transformer provides efficient power isolation for mixed-load industrial systems. Engineers often struggle to deliver high-efficiency performance without sacrificing space, serviceability, or lifecycle reliability in control panels and switchgear. UL Listed, DOE 2016 Efficient compliance, and a NEMA 2 enclosure ensure regulatory alignment and rugged durability in both indoor and moderate outdoor environments. With copper windings, a floor-mount design, and a three-phase 480 V primary feeding 208Y/120 V secondary, this transformer minimizes energy losses while simplifying installation. It supports scalable power distribution across data centers, manufacturing lines, and automated machinery, helping reduce heat, drift, and maintenance costs over the equipment’s lifetime.
Product Information
Extended Description
N48M28F2216CU Eaton: Eaton K-Factor nonlinear ventilated transformer, Copper windings, NEMA 2, FR945, 60 Hz, 220°C, 225 kVA, Floor, Three-phase, 480 Delta V, 208Y/120 Vac, NEMA ST-20, 115°C, 225 kVA, 480 Vac-208Y/120 Vac, 283B, DOE 2016, WS62
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28F2216CU
UPC
786680192876
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
Tap size
2 at +2.5%, 4 at -2.5%
Frequency rating
60 Hz
Kva Rating
225 kVA
Volt ampere rating
225 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Sound Level
NEMA ST-20
Temperature rise
115 °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 - N48M28F2216CU
Feature: K-Factor nonlinear ventilated design → Business Impact: Reduces harmonic distortion and associated losses in mixed-load systems, improving overall system efficiency. Application: Ideal for automation cabinets and plant power distribution where nonlinear loads are present. | Feature: Copper windings with 220 °C insulation → Business Impact: Enhanced durability and thermal tolerance for continuous operation under high load, lowering replacement risk. Application: Industrial environments with tight temperature control requirements. | Feature: DOE 2016 Efficient compliance + UL Listed → Business Impact: Regulatory alignment and energy savings verified by recognized standards, reducing compliance risk and operating costs. Application: Data centers, machine rooms, and regulated manufacturing spaces. | Feature: NEMA 2 enclosure + floor mounting (FR945) → Business Impact: Robust enclosure and installation versatility enable reliable indoor installation with straightforward retrofit into existing footprints. Application: Indoor production lines and control rooms requiring rugged protection. | Feature: Tap changer 2 at +2.5%, 4 at -2.5% → Business Impact: Built-in voltage regulation reduces voltage drop and improves load stability, minimizing equipment downtime. Application: Plants with variable input conditions and critical control loads. | Feature: Three-phase 480 V primary, 208Y/120 V secondary, 225 kVA rating → Business Impact: High-capacity, versatile power conversion supporting scalable automation and data-center needs. Application: Large-scale manufacturing, data-center adjacency, and industrial controls where reliable power distribution is essential.
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FAQs
Plan for floor mounting in a stable, vibration-minimized area with adequate clearance for airflow around the NEMA 2 enclosure. Ensure connection 283B is correctly seated and that the room meets indoor environmental conditions suitable for a FR945 frame transformer. Verify 480 V delta primary and 208Y/120 V secondary wiring and ensure space for maintenance access and future voltage taps (+2.5% and -2.5%).
The unit is a three-phase transformer with a 480 V primary and a 208Y/120 V secondary, rated for 60 Hz operation. It delivers 225 kVA of capacity, suitable for mid-to-large industrial loads, with copper windings and a NEMA 2 enclosure for rugged indoor use.
Yes. The transformer complies with DOE 2016 efficiency requirements, helping reduce energy consumption and operating costs. It is UL Listed, confirming adherence to safety and performance standards. These certifications support regulatory compliance in regulated facilities and provide assurance for long-term reliability in critical power applications.
K-Factor 13 indicates enhanced performance with nonlinear loads, reducing transformer loss and improving efficiency under harmonic-rich conditions. For installations with SCR-controlled drives or other nonlinear loads, this design helps maintain voltage regulation, extend component life, and lower heat generation in control panels and switchgear.
Key protections include a NEMA 2 enclosure for robust indoor protection, copper windings for durability, FR945 frame for compatibility with existing footprints, 115 °C rise insulation, and a +2.5% / -2.5% voltage tap configuration for regulation. The unit is also WS62 weather shielding compatibility and complies with DOE 2016 efficiency, contributing to longevity and reduced maintenance.