Eaton N48M28F12CU Transformer - UL Listed, 112.5 kVA
Part Number: N48M28F12CU
Quick Summary
The Eaton N48M28F12CU transformer provides K‑Factor nonlinear ventilation for load-critical power distribution in industrial facilities. The main challenge it addresses is maintaining voltage stability and preventing nuisance trips in crowded switchgear during fluctuating loads. UL Listed certification supports safety compliance, while a 112.5 kVA three‑phase rating offers scalable capacity for growing plants. With copper windings, electrostatic shielding, and a WS19 weathershield option, this unit delivers reliable protection in harsh environments. Designed for 60 Hz operation with 480 V primary and 208Y/120 V secondary, the N48M28F12CU also features voltage taps for field adjustment, enabling faster commissioning and consistent performance across varied supply conditions. This combination drives uptime and helps protect downstream equipment.
Product Information
Extended Description
N48M28F12CU Eaton: K-Factor nonlinear ventilated transformer K-13, Three-phase, PV: 480V, Taps: 2 at 0.025 FCAN, 4 at -0.025 FCBN, SV: 208Y/120V, 115°C, 112.5 kVA , Cu windings, Elec. Shield, Frame: 916A
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28F12CU
UPC
786680371202
Product Length/Depth
23.42 in
Product Height
48.56 in
Product Width
28.22 in
Product Weight
1232 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.
Certifications
UL Listed
Coil material
Copper
Type
Ventilated transformer
Design
K-13
Frame
916A
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Kva Rating
112.5 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
115 °C rise
Special features
Electrostatically Shielded
Weathershield
WS19
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28F12CU
Feature → Business Impact → Application: Copper windings improve electrical conductivity and thermal efficiency, reducing I2R losses and enabling tighter voltage regulation under load swings, which translates to lower energy costs and longer transformer life in manufacturing lines. Application: Ideal for high-demand machine centers and process plants where consistent voltage is critical. Feature → Business Impact → Application: Three-phase configuration with 60 Hz operation delivers robust power distribution for data centers and control rooms, improving system reliability and reducing downtime. Application: Suitable for industrial automation hubs requiring dependable K‑Factor performance. Feature → Business Impact → Application: K‑Factor nonlinear vented design minimizes harmonic stress and overheating in dense switchgear, enhancing device longevity and safety margins. Application: Suitable for retrofit projects or new builds in facilities with sensitive electronics and stringent uptime targets. Feature → Business Impact → Application: Taps at +2.5% and -2.5% provide field-adjustable voltage to compensate for supply variations, simplifying commissioning and maintaining performance across varying inputs. Application: Supports rapid deployment in multi‑plant operations. Feature → Business Impact → Application: Electrostatic shielding and WS19 weathershield enhance reliability in harsh environments, reducing maintenance cycles and protection against contaminants. Application: Critical in outdoor or semi‑indoor installations where exposure and dust are common. Feature → Business Impact → Application: 112.5 kVA rating aligns with scalable, modular power distribution, enabling phased capacity growth without replacement. Application: Fit for growing facilities and expanding service bays that demand steady power for critical loads.
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FAQs
Yes. The N48M28F12CU is designed for a 480 V primary and 208Y/120 V secondary in three‑phase configurations. Its taps provide field adjustment to compensate for minor supply variations, simplifying installation in standard industrial rooms and ensuring consistent output under varying loads.
K‑Factor nonlinear design reduces harmonic heating and improves transformer performance under non‑sinusoidal loads common in modern equipment. The +2.5% FCAN and -2.5% FCBN taps allow precise voltage tuning on site, enabling tighter voltage regulation, minimizing downtime, and easing commissioning in facilities with fluctuating supplies.
Industries such as data centers, manufacturing plants, and automation hubs benefit from stable voltage and reliable protection. Plan for a 60 Hz environment, access to copper windings, and space for frame 916A. Consider the WS19 weathershield and electrostatic shielding for harsh outdoor or dusty locations, plus room for voltage tap connections during commissioning.
The N48M28F12CU carries UL Listed certification, confirming adherence to safety standards. This supports regulatory compliance, supplier reliability, and maintenance planning by providing a clear safety baseline for inspections, testing, and routine servicing according to established electrical codes.
The 112.5 kVA N48M28F12CU reduces energy losses through efficient copper windings and a robust cooling profile, minimizing cooling demands and extending service life. With durable shielding and weather protection, maintenance cycles are extended, lowering lifecycle costs while maintaining uptime for critical loads.