Eaton N48M28T22EESRLS52 Transformer K-Factor
Part Number: N48M28T22EESRLS52
Quick Summary
The Eaton N48M28T22EESRLS52 transformer is a nonlinear ventilated three‑phase power solution for industrial facilities. In demanding plants, space constraints, noise, and voltage variation can erode uptime and increase energy costs. Catalog notes highlight NEMA TP‑1 efficient operation and a certified low-sound design around 52 dB, with formal certifications available from the manufacturer. Designed for robust distribution, this model uses aluminum windings, a WS34 weather shield, and an electrostatically shielded construction to improve reliability and EMI performance. For procurement teams, the combination of a 225 kVA rating, clear tap settings, and a well‑defined warranty supports easier integration and maintenance planning in modern electrical rooms.
Product Information
Extended Description
N48M28T22EESRLS52 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, SR, LS52
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T22EESRLS52
UPC
786680111471
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.
Certifications
Contact Manufacturer
Catalog Notes
NEMA TP-1 efficient Certified sound level report Low sound design equivalent to 52 dB.
Coil material
Aluminum
Wiring connection
292A
Type
Nonlinear ventilated transformer
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
Special features
Electrostatically shielded
Weathershield
WS34
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28T22EESRLS52
Feature: K‑Factor nonlinear ventilated design with KT‑13 configuration. Benefit: Improves harmonic performance and short‑term overload tolerance, reducing overheating and downtime in highly loaded industrial networks. Application: Suitable for data centers and manufacturing plants where clean power and reliability are essential. Feature: Tap settings with 2 taps at +2.5% and 4 taps at -2.5%. Benefit: Allows fine voltage regulation to maintain 208Y/120 V secondary under supply swings, improving equipment performance and reducing nuisance tripping. Application: 480 V primary distribution feeding 208/120 V end devices in mixed-load environments. Feature: Aluminum coil material and 292A wiring connection. Benefit: Enhances thermal performance and mechanical robustness while supporting straightforward installation and serviceability. Application: Retrofit projects and new builds with limited maintenance windows. Feature: Electrostatic shielding and WS34 weather shield. Benefit: Reduces EMI and protects the transformer in outdoor or harsh indoor environments, extending service life. Application: Outdoor electrical rooms and exposed installations in industrial facilities. Feature: 150 °C rise with 200 °C insulation system and 225 kVA three‑phase rating. Benefit: High‑temperature tolerance supports dense modular layouts and improved fault resilience, with predictable performance under peak loads. Application: Large power distribution footprints with critical uptime requirements. Feature: 60 Hz operation, 480 V to 208Y/120 V secondary, 918A frame, weight 1503 lb, dimensions 30.68 in L × 62.18 in H × 31.44 in W. Benefit: Clear mechanical footprint and weight guidance aid room planning, mounting, and crane clearance. Application: New installations and space‑constrained facilities seeking defined installation envelopes. Feature: Warranty of one year from installation or 18 months from shipment; catalog notes of NEMA TP‑1 efficiency; low sound design. Benefit: Predictable ownership costs with documented performance and a defined service window to minimize lifecycle risk. Application: Procurement and facilities management prioritizing total cost of ownership.
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FAQs
This transformer is designed for 480 V primary service and provides a 208Y/120 V secondary, supporting typical industrial distribution needs. With a three‑phase 225 kVA rating and multiple voltage taps, it accommodates supply variations and short‑term load spikes, simplifying integration into existing switchgear and panelboards while maintaining voltage quality across end devices.
Key specs include 225 kVA, 60 Hz operation, aluminum windings, and a 150 °C rise with a 200 °C insulation system. The NEMA TP‑1 efficient design improves operating efficiency, while the electrostatic shielding reduces EMI. These factors translate to lower energy losses, improved uptime, and better protection of sensitive equipment in harsh industrial environments.
Yes. The catalog notes specify a low sound design with an equivalent level around 52 dB, aided by the nonlinearity and ventilated construction. The WS34 weather shield also contributes to enclosure management, while the overall build minimizes radiated noise—beneficial for installations near offices or occupied spaces.
Eaton provides a one‑year warranty from installation or eighteen months from shipment, whichever occurs first. For ongoing reliability, routine checks of insulation, connections (292A), and cooling paths are recommended. Manufacturer support is available for certification details, spare parts, and service planning to maximize uptime and lifecycle value.
The unit measures approximately 30.68 in long by 62.18 in high by 31.44 in wide and weighs about 1503 lb, with a WS34 weather shield and 918A frame. Plan for crane access, a stable concrete pad, and adequate clearance for ventilation and maintenance access. The footprint supports organized wiring and straightforward integration with existing 480 V distribution panels.