Eaton N48M28F30LS40 K-Factor Transformer - UL Listed
Part Number: N48M28F30LS40
Quick Summary
Eaton N48M28F30LS40 K-Factor transformer delivers reliable three-phase power conditioning for industrial facilities. Engineers face harmonics, audible noise, and rising maintenance costs when handling nonlinear loads. UL Listed safety certification supports compliant, safe operation, while the 115°C rise rating and shielded aluminum windings boost reliability in harsh environments. Designed for 30 kVA, 480 V primary and 208Y/120 V secondary, it integrates with standard plant controls to simplify installation and uptime. From a procurement perspective, the low noise level of 40 dB and Eaton's one-year warranty translate into lower lifecycle costs and more predictable performance.
Product Information
Extended Description
N48M28F30LS40 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, 30 kVA , Al windings, Elec. Shield
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28F30LS40
UPC
786680025815
Product Length/Depth
16.5 in
Product Height
30 in
Product Width
23 in
Product Weight
310 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 40 dB
Coil material
Aluminum
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
115 °C rise
Modification 1
Low sound 40 dB
Special features
Electrostatically Shielded
Weathershield
WS38
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28F30LS40
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: K-Factor nonlinear ventilated transformer delivers dynamic power conditioning for nonlinear loads while operating at 60 Hz with a 30 kVA rating. Business Impact: The K-Factor design minimizes harmonic currents and voltage distortion, reducing insulation stress, improving energy efficiency, and lowering maintenance cycles across critical equipment. Application: Ideal for facilities with VFDs, CNCs, and other nonlinear loads in manufacturing and process environments. Feature: Aluminum windings and electrostatic shield provide robust thermal performance and EMI protection. Business Impact: Aluminum windings offer lightweight strength and cost efficiency, while the shield mitigates electrical noise, enabling closer placement to sensitive control gear without compromising safety. Application: Suitable for harsh industrial environments, control panels, and outdoor enclosures where space is at a premium and EMI must be controlled. Feature: Dual voltage configuration with 480 V primary, 208Y/120 V secondary, plus taps of +2.5% and -2.5%. Business Impact: Flexible integration with existing power systems and local voltage compensation under load, reducing the need for additional transformers or power conditioning equipment. Application: Plants with mixed-voltage networks, panel boards, and service entrances benefit from quick, on-site voltage tailoring. Feature: Low noise operation rated at 40 dB and Weather Shield WS38. Business Impact: Quiet performance supports proximity installation to operators and reduces acoustic compliance concerns, while weather protection extends service life in damp or outdoor sites. Application: Data centers, machine rooms, and outdoor enclosures where ambient conditions drive installation choices. Feature: UL Listed certification and Eaton warranty policy provide safety and post-sale support. Business Impact: Lowers procurement risk, simplifies qualification processes, and ensures serviceability via defined warranty windows. Application: Useful for approved vendor lists, maintenance planning, and compliance documentation in regulated industries.
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FAQs
Install in a properly sized enclosure with adequate clearance for ventilation, connecting the 480 V primary to the supply lugs per the catalog drawings. Verify the 480 V–to–208Y/120 V secondary connections are correctly wired, use the specified taps, and secure an electrostatic shield per installation instructions. Ensure the WS38 weather shield is used in outdoor or damp environments and confirm grounding per local codes.
Best-suited loads include motor drives, variable frequency drives, CNC machinery, and other nonlinear equipment where harmonic mitigation and stable voltage are crucial. The K-Factor design minimizes harmonic currents, reducing EMI and voltage distortion, which translates to fewer nuisance trips and improved equipment life in manufacturing and process environments.
Yes, the transformer carries UL Listed certification, signaling conformance to recognized safety standards for electrical equipment. This supports regulatory compliance, simplifies vendor qualification, and enhances safety documentation for audits and maintenance planning across industrial facilities.
Eaton provides a one-year warranty from installation or eighteen months from shipment, whichever occurs first. Regular maintenance includes inspecting connections, verifying tap settings, and ensuring adequate ventilation. The aluminum windings and shield help reduce overheating risk, while the low-noise 40 dB profile minimizes operational maintenance disruptions in office-adjacent or noise-sensitive spaces.
WS38 weather shielding protects the transformer in challenging environments, enabling outdoor or damp-location installations. The 40 dB low-noise operation supports closer proximity to operators and equipment, reducing the need for additional sound attenuation measures and enabling more compact plant layouts with compliant acoustic performance.