Eaton N48M28B75CULS47 Transformer - UL Listed
Part Number: N48M28B75CULS47
Quick Summary
Eaton N48M28B75CULS47 nonlinear ventilated transformer provides reliable power conditioning for three-phase industrial distribution. The design targets voltage stability and thermal reliability, addressing common pain points like voltage drift and overheating that can disrupt production. This unit carries UL Listed safety certification, a low-noise performance of 47 dB, and an 80°C rise rating, supporting safe operation in compact or open-plant environments. With copper windings, an electrostatic shield, and a rugged 916A frame, installation is straightforward in existing panels and switchgear. The 75 kVA rating and precise tap settings enable scalable energy management, helping data centers, manufacturing lines, and distribution panels meet performance and reliability targets.
Product Information
Extended Description
N48M28B75CULS47 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, 80°C, 75 kVA , Cu windings, Elec. Shield, Frame: 916A
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B75CULS47
UPC
786680026546
Product Length/Depth
23.42 in
Product Height
48.56 in
Product Width
28.22 in
Product Weight
1200 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 47 dB
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
75 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
80 °C rise
Modification 1
Low sound 47 dB
Special features
Electrostatically Shielded
Weathershield
WS19
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28B75CULS47
Feature: K-Factor nonlinear ventilated transformer design → Business Impact: Improves reliability under nonlinear loading and minimizes overheating, which reduces unplanned downtime and maintenance costs. Application: Power distribution for motor drives and non-linear loads in manufacturing and processing facilities. Feature: Copper windings with electrostatic shield → Business Impact: Higher efficiency, lower core and copper losses, and better EMI/RFI protection, enhancing equipment longevity. Application: Critical control systems, PLCs, and sensitive instrumentation in industrial environments. Feature: 75 kVA, 480 V primary to 208Y/120 V secondary → Business Impact: Flexible feed and easy panel integration for multiple downstream circuits, reducing the need for additional transformers. Application: Panel boards, switchgear upgrades, and distribution substations. Feature: Tap settings 2 at +2.5% FCAN and 4 at -2.5% FCBN → Business Impact: Maintains voltage regulation during load fluctuations, improving performance and minimizing voltage-related trips. Application: Plants with variable loads and variable input conditions. Feature: Low sound 47 dB and Weathershield WS19 → Business Impact: Quiet operation in compact spaces and robust outdoor or semi-outdoor installations, enabling placement closer to loads. Application: Data centers, outdoor equipment enclosures, and open-plan facilities. Feature: Frame 916A and overall rugged construction → Business Impact: Durable, serviceable design supporting long life in demanding industrial environments, reducing replacement cycles. Application: Heavy-duty switchgear integrations and retrofit projects.
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FAQs
The transformer is 75 kVA, three-phase, with a 480 V primary and a 208Y/120 V secondary. It operates at 60 Hz, uses copper windings, and has an 80°C rise rating for robust thermal performance. The device includes taps: 2 at +2.5% and 4 at -2.5% to maintain voltage under varying loads.
Yes, N48M28B75CULS47 is UL Listed, indicating it meets established safety standards for electrical equipment. This certification supports safer installation in industrial environments and simplifies compliance in facilities that require recognized safety markings.
With a catalog sound level of 47 dB, the transformer minimizes acoustic impact in employee work areas and equipment rooms. This is beneficial for open-plan facilities and noise-sensitive installations where compliance with sound limits matters.
The unit provides taps at 2 at +2.5% FCAN and 4 at -2.5% FCBN, allowing precise voltage regulation under load variation. When planning installation, ensure compatible wiring, panel space for a 75 kVA, 916A-frame unit, and access to a suitable cooling/ventilation path.
Warranty details follow Eaton policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. For technical support, refer to Eaton’s transformer resources and datasheets, including the specification sheet for N48M28B75CULS47.