Eaton N48M28T22EELS52 Transformer - UL Listed, NEMA TP-1
Part Number: N48M28T22EELS52
Quick Summary
Eaton N48M28T22EELS52 transformer delivers K‑Factor nonlinear power distribution for 480 V to 208Y/120 V in industrial facilities. Many sites struggle with heat, noise, and retrofit challenges that threaten uptime and operating costs. UL Listed and NEMA TP-1 compliant designs, plus a low-sound 52 dB variant, help meet safety and regulatory requirements. This rugged, ventilated transformer supports outdoor or rugged indoor installations with a weather shield WS34 and aluminum coil material. With a 225 kVA rating, three-phase operation, and selectable taps, installation adapts to variable supply conditions. This reliability and flexibility translates into lower energy waste, easier commissioning, and improved uptime for critical processes.
Product Information
Extended Description
N48M28T22EELS52 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, 225 kVA, EE, LS, 52
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T22EELS52
UPC
786680045523
Product Length/Depth
30.68 in
Product Height
62.18 in
Product Width
31.44 in
Product Weight
1503 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 52 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
225 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208 Y/120 V
Temperature rise
150 °C rise
Modification 1
Low sound 52 dB
Special features
Electrostatically Shielded
Weathershield
WS34
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28T22EELS52
Feature: K-Factor nonlinear windings optimize performance under harmonic loading, reducing peak temperatures and enabling tighter voltage regulation. Business impact: improved energy efficiency and longer asset life in facilities with non-linear loads. Application: data centers, drive-heavy production lines, and mixed-load panels where harmonics are present. Feature: Ventilated cooling and a 150°C rise rating enable higher output stability and faster heat dissipation. Business impact: smaller cooling footprints and lower risk of thermal outages in densely packed switchgear rooms. Application: industrial plants and machine rooms with limited airflow. Feature: Aluminum windings and the 918A frame deliver robust mechanical and electrical integrity at a manageable weight. Business impact: easier handling during installation, reduced605 lifecycle costs, and better ductility for field modifications. Application: retrofit projects and new builds with space constraints. Feature: UL Listed and NEMA TP-1 compliant construction, plus a low-sound 52 dB profile and WS34 weather shield. Business impact: regulatory compliance, quieter operation, and outdoor-install confidence. Application: outdoor substations, equipment yards, and protected outdoor enclosures. Feature: 225 kVA three-phase configuration with selectable taps (+2.5% and -2.5%) provides voltage flexibility to maintain secondary voltage during supply fluctuations. Business impact: improved reliability, reduced rework, and smoother integration with downstream equipment. Application: facilities with variable supply, harmonics, or transformer-room constraints.
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FAQs
Plan for a three‑phase 480 V input with a 208Y/120 V output and allow for the unit’s footprint (30.68 in length, 62.18 in height, 31.44 in width) and 1503 lb weight. Provide adequate ventilation and clearance for WS34 weather shield access, with proper mounting in a compliant enclosure or switchgear room. Ensure mounting space accommodates tapping access and service connections per local codes.
The K‑Factor nonlinear windings optimize performance under harmonic loading, reducing overheating and improving voltage regulation. This translates to higher efficiency, better stability for non-linear loads, and extended transformer life in facilities with drives, rectifiers, or other harmonic-rich equipment.
Yes. It is UL Listed and NEMA TP-1 compliant, with a low-sound 52 dB profile and a 150°C rise insulation rating. These certifications support safe operation in compliant facilities and help meet regulatory requirements for commercial and industrial power distribution.
The unit provides taps at +2.5% and -2.5%, enabling fine voltage adjustment to maintain the 208Y/120 V secondary under supply fluctuations. Installers use the taps during commissioning or when upstream voltage drifts, ensuring downstream equipment receives stable voltage without oversized transformers.
With a one-year warranty from installation or 18 months from shipment and a robust electrostatic shielding option, maintenance is predictable and minimal. The combination of high efficiency under non-linear loads, low-noise operation, and durable WS34 weather shielding supports faster ROI through reduced downtime, energy savings, and simpler ongoing service.