Eaton N48M28T30CULS42 K-Factor Nonlinear Transformer - UL
Part Number: N48M28T30CULS42
Quick Summary
The Eaton K-Factor nonlinear ventilated transformer powers demanding industrial automation loads with dependable three-phase performance. In real-world plants, heat, noise, and voltage drift disrupt uptime and efficiency. UL Listed certification supports safety and regulatory compliance, while copper windings, electrostatic shielding, and a 150°C rise rating enable rugged operation. With a 30 kVA rating and a 480 V primary to 208Y/120 V secondary, it supports scalable control panels, motor drives, and switchgear, helping facilities reduce downtime and extend equipment life. Its ventilated design and low 42 dB sound profile further improve integration in compact enclosures, data rooms, and crowded plant floors.
Product Information
Extended Description
N48M28T30CULS42 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, 150°C, 30 kVA , Cu windings, Elec. Shield, Frame: 912B
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T30CULS42
UPC
786680025969
Product Length/Depth
16.5 in
Product Height
30 in
Product Width
23 in
Product Weight
356 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
Catalog Notes
Low sound equal to 42 dB
Coil material
Copper
Type
Ventilated transformer
Design
K-13
Frame
912B
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Kva Rating
30 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
150 °C rise
Modification 1
Low sound 42 dB
Special features
Electrostatically Shielded
Weathershield
WS38
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28T30CULS42
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: K-Factor nonlinear design with copper windings optimizes performance under non-linear loads, reducing hotspot formation and enabling longer transformer life. Business Impact: lower maintenance costs, fewer outages, and enhanced reliability for critical automation circuits. Application: ideal for automation racks, servo drives, and distributed control panels in manufacturing environments. Feature: Enhanced cooling with ventilated construction and a 150°C rise rating improves heat dissipation, supporting operation in higher ambient temperatures and dense installations. Business Impact: increased uptime and margin protection in hot plants. Application: equipment rooms and switchgear enclosures where heat density is high. Feature: Tap changers with 2 at +2.5% FCAN and 4 at -2.5% FCBN provide precise voltage regulation. Business Impact: stable output despite input variation, reducing nuisance tripping and protecting sensitive equipment. Application: control panels and feeder circuits with fluctuating supply. Feature: Electrostatic shield and copper windings offer EMI/RFI suppression and durability. Business Impact: better signal integrity and longer service life in environments with adjacent drives and motors. Application: data rooms, cabinets, and near noisy equipment. Feature: Weathershield WS38 compatibility and UL Listed certification offer installation flexibility and regulatory confidence. Business Impact: simplified sourcing and compliance, enabling faster project timelines. Application: outdoor or rugged indoor installations where environmental exposure is a consideration.
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FAQs
The N48M28T30CULS42 is a three-phase transformer with a 480 V input and 208Y/120 V output. Mount on a rigid base, provide ventilation, and connect primary and secondary per the phase arrangement. Use the 2 at +2.5% and 4 at -2.5% taps to adjust voltage when supply varies. Ensure UL guidelines are followed.
This unit features a low sound profile of 42 dB and a 150°C rise rating, supporting reliable operation in compact, noise-sensitive spaces. At 60 Hz and 30 kVA, expect steady voltage under load with copper windings delivering efficient heat dissipation and EMI shielding for adjacent equipment.
Yes. With 30 kVA capacity and 480 V to 208Y/120 V, it powers critical control circuits, motors, and drives. The electrostatic shield reduces EMI, and its UL Listed status provides regulatory confidence. The frame 912B design and low-noise operation suit equipment rooms and enclosure-mounted applications.
This transformer carries UL Listed certification, indicating compliance with established safety standards. The 60 Hz rating, copper windings, and electrostatic shielding align with common industry requirements. If you require additional regional certifications, verify regional Eaton documentation for your market.
With copper windings, robust frame, and a one-year warranty (or 18 months from shipment per Eaton policy), downtime is minimized and maintenance cycles are predictable. The 30 kVA capacity allows shared use across multiple loads, reducing spare-part variety while improving system reliability and ROI.