Eaton N48M28T22AFCUEESR Transformer - NEMA TP-1
Part Number: N48M28T22AFCUEESR
Quick Summary
The Eaton K-Factor nonlinear ventilated transformer powers 3‑phase power distribution for industrial equipment. Fluctuating loads and voltage drop can drive insulation stress, raise maintenance costs, and trigger unplanned downtime in critical automation lines. UL Listed and NEMA TP-1 compliant, it also features a fungus-proof Grade 304 stainless steel enclosure and a certified sound level report for quiet operation. With copper windings and a 225 kVA rating at 60 Hz, it delivers reliable performance for machine controls, MCCs, and process equipment, while taps enable voltage stability amid supply variations. Designed for engineers prioritizing uptime and compliance, this transformer combines rugged build with installation advantages and long-term cost efficiency.
Product Information
Extended Description
N48M28T22AFCUEESR 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, Fungus proof, Copper windings, EESR
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T22AFCUEESR
UPC
786680053399
Product Length/Depth
30.68 in
Product Height
62.18 in
Product Width
31.44 in
Product Weight
2275 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, Grade 304 stainless steel enclosure, Fungus proof, Certified sound level report
Coil material
Copper
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 - N48M28T22AFCUEESR
Feature: K-Factor nonlinear ventilated design. Business Impact: Improves fault tolerance to harmonic currents and reduces overheating risk in mixed-load environments. Application: Ideal for drives, CNC systems, and complex automation panels where load profiles vary. Feature: Tap-changer with +2.5% and -2.5% options. Business Impact: Enables precise voltage regulation, minimizing equipment stress and improving control accuracy. Application: Crucial for long cable runs and installations with fluctuating input voltage. Feature: Rugged enclosure and corrosion-resistant construction. Business Impact: Fungus-proof, Grade 304 stainless steel enclosure withstands harsh environments, lowering maintenance and replacement costs. Application: Suitable for washdown areas, outdoor installations, and industrial plants. Feature: Compliance and certification package. Business Impact: UL Listed and NEMA TP-1 compliant design reduces procurement risk and speeds regulatory approvals. Application: Meets industry standards for electrical safety and performance in automation and power distribution. Feature: 225 kVA copper-wound transformer. Business Impact: Copper windings deliver high efficiency, lower losses, and robust current handling across 480 V to 208 Y/120 V conversions. Application: Supports machinery, motor drives, and control centers in high-demand automation. Feature: Size, weight, and mounting readiness. Business Impact: Footprint and weight (30.68 in L, 62.18 in H, 31.44 in W, 2275 lb) inform rack, room, and pad mounting decisions, speeding installation. Application: Fits standard industrial transformer footprints and supports straightforward retrofits.
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FAQs
Mounting this transformer requires securing the 30.68 in length, 62.18 in height, and 31.44 in width footprint in a well-ventilated space with adequate clearance for service access. Use the 918A frame and, if applicable, the WS34 Weathershield enclosure to protect against environmental exposure. Ensure proper routing of 480 V primary and 208Y/120 V secondary cabling and observe torque specs for copper windings to maintain reliability.
The transformer provides taps at two positions of +2.5% and four positions at -2.5% to compensate for voltage drop along feeders and transient disturbances. Selecting the appropriate tap stabilizes output at 208Y/120 V secondary under varying line conditions, improving equipment performance and reducing nuisance trips in automation panels and MCCs.
Yes. It is UL Listed and NEMA TP-1 compliant, with a fungus-proof Grade 304 stainless steel enclosure and a certified sound level report. These certifications and features support regulatory compliance, noise management, and reliability in industrial settings such as manufacturing floors, outdoors, or washdown areas.
A 225 kVA rating at 60 Hz supports considerable load demand from automation panels, drives, and control centers. Copper windings reduce conductor losses, improving overall efficiency, while the high insulation capability and 150 °C rise rating provide robust thermal headroom for short-term overloads without compromising protection or longevity.
The product follows Eaton’s policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. This provides coverage for manufacturing defects and early-life failures. For ongoing maintenance, Eaton and its partners can offer replacement parts, field service, and performance verification to sustain uptime.