Eaton N48M28T12EELS45 Transformer - UL Listed
Part Number: N48M28T12EELS45
Quick Summary
Eaton K-Factor nonlinear ventilated transformer N48M28T12EELS45 delivers efficient 112.5 kVA three-phase power for industrial plants. Engineers often struggle with efficiency targets, cooling loads, and noise constraints in large switchgear rooms that drive energy waste and maintenance downtime. UL Listed certification and NEMA TP-1 compliance provide safety, reliability, and regulatory alignment in demanding electrical environments nationwide. With 480 V primary and 208Y/120 V secondary, aluminum windings, and a 150 °C rise, it improves efficiency, reduces cooling load, and lowers lifecycle costs for industrial power distribution projects. Taps at +2.5% and -2.5% support site voltage regulation, helping downstream equipment stay within spec.
Product Information
Extended Description
N48M28T12EELS45 Eaton: Eaton K-Factor nonlinear ventilated transformer, KT-13 (3-phase), PV 480V, Taps: 2 at +2.5% /4 at -2.5%, SV 208Y/120V, 150°C rise w/ 200°C insulation systeam, 112.5 kVA, EE, LS, 45
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T12EELS45
UPC
786680053382
Product Length/Depth
30.68 in
Product Height
62.18 in
Product Width
31.44 in
Product Weight
1942 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
NEMA TP-1 Compliant
Certifications
UL Listed
Catalog Notes
Nema TP-1 efficient, Low sound equal to 45 dB
Coil material
Aluminum
Frame
918A
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Volt ampere rating
112.5 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208 Y/120 V
Temperature rise
150 °C rise
Modification 1
Low sound 45 dB
Special features
Electrostatically Shielded
Weathershield
WS34
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28T12EELS45
Feature: K-Factor nonlinear ventilated design reduces thermal stress and improves overload tolerance. Business Impact: Enhanced reliability and extended transformer life under variable loading, lowering maintenance costs. Application: Ideal for data centers and heavy manufacturing where load transients occur. Feature: 112.5 kVA three-phase power rating with a 480 V primary and 208Y/120 V secondary. Business Impact: Streamlined upstream distribution and fewer transformers needed per footprint, reducing capital expense and space. Application: Mid-size power centers and equipment rooms requiring balanced 480 V to 208Y/120 V conversions. Feature: Taps of 2 at +2.5% and 4 at -2.5% enable site voltage regulation. Business Impact: Maintains equipment within design tolerances, reducing wear and nuisance trips. Application: On-site voltage management for critical panels. Feature: Aluminum coil material and 918A frame offer lower thermal inertia and robust mechanical support. Business Impact: Lighter weight relative to copper, easier handling, and stable performance in tight installations. Application: Field installs with limited crane or lifting capacity. Feature: 150 °C rise rating with 200 °C insulation system provides high-temperature tolerance. Business Impact: Higher short-term thermal headroom for peak loads, improving uptime. Application: Environments with high ambient temperatures. Feature: Electrostatically shielded construction and WS34 weather shield option support EMI protection and weather resistance. Business Impact: Safer operation in noisy electrical environments and outdoor or harsh indoor conditions. Application: Heavy industry and outdoor substations. Feature: NEMA TP-1 efficiency compliance and UL Listed certification confirm regulatory and performance standards. Business Impact: Simplifies procurement, accelerates audits, and reduces risk of non-compliant installations. Application: Global industrial deployments requiring formal efficiency and safety certifications.
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FAQs
Key installation factors include maneuvering the 1942 lb unit into the space, ensuring adequate ventilation, and providing proper electrical clearances per manufacturer guidelines. Plan for mounting on a solid pad compatible with the 918A frame, with accessible connections for the 480 V primary and 208Y/120 V secondary. Confirm compatibility with existing switchgear and conduit runs to minimize rework.
The unit provides 2 at +2.5% and 4 at -2.5% taps to tune voltage at the load. This capability helps stabilize downstream equipment during bus voltage fluctuations and transient events, reducing thermal stress on motors and controllers. Its ventilated design supports thermal management during peak loads common in manufacturing lines and data center racks.
Yes. The transformer is UL Listed and complies with NEMA TP-1 efficiency standards, aligning with safety and performance expectations in standard industrial environments. This certification simplifies procurement, speeds compliance checks, and supports reliable operation in regulated facilities.
Best suited for mid-to-large industrial facilities, data centers, and motor control centers needing reliable 480 V to 208Y/120 V conversion. Its 112.5 kVA rating supports substantial loads, while the low noise output and shielding features reduce acoustic and EMI concerns in populated plant spaces.
Maintenance is minimized by a sealed electrostatic shielded design and robust insulation rated to 200 °C, contributing to longer intervals between servicing. The combination of UL/NEMA TP-1 compliance, reduced cooling requirements, and efficient operation supports lower lifecycle costs and faster payback in facilities prioritizing uptime and energy efficiency.