Eaton N48M28T2216LS55 K-Factor transformer - UL Listed
Part Number: N48M28T2216LS55
Quick Summary
The Eaton K-Factor nonlinear ventilated transformer provides energy-efficient power distribution for industrial facilities. Engineers often wrestle with heat, noise, and compliance while trying to optimize uptime. It carries DOE 2016 efficiency requirements, UL Listed certification, and a rugged NEMA 2 enclosure for indoor or controlled environments. Floor mounting with a 225 kVA rating and selectable taps supports scalable plant expansions, reduces energy waste, and lowers lifecycle costs, making it a practical choice for three-phase 480 V to 208Y/120 V applications in manufacturing and processing facilities. With aluminum windings and a low sound profile of 55 dB, it minimizes installation disruption and cooling requirements.
Product Information
Extended Description
N48M28T2216LS55 Eaton: Eaton K-Factor nonlinear ventilated transformer, Aluminum windings, NEMA 2, 60 Hz, 220°C, 225 kVA, Electrostatic shield, Floor, Three-phase, 480 Delta V, 208Y/120 Vac, Low sound 55 dB, 150°C, 225 kVA, 480 Vac-208Y/120 Vac, DOE 2016
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T2216LS55
UPC
786680204043
Product Length/Depth
33.5 in
Product Height
66.18 in
Product Width
42.18 in
Product Weight
2341 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
DOE2016 Efficient
Certifications
UL Listed
Catalog Notes
10 CFR Part 431 (2016) Efficient
Coil material
Aluminum
Enclosure
NEMA 2
Type
Energy-efficient ventilated transformer
Insulation
220 °C
Mounting
Floor
Tap size
2 at +2.5%, 4 at -2.5%
Frequency rating
60 Hz
Kva Rating
225 kVA
Volt ampere rating
225 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Sound Level
55 dB
Temperature rise
150 °C rise
Voltage rating
480 Vac-208Y/120 Vac
Efficiency
10 CFR Part 431-2016 (DOE 2016)
Modification 1
Electrostatic shield
Special features
K-factor 13
Eaton's low-voltage dry-type distribution transformers
Eaton's low-voltage dry-type distribution transformers
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28T2216LS55
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: K-Factor nonlinear transformer design with electrostatic shield stabilizes performance under non-linear loads. Business Impact: Improves power quality and EMI suppression, protecting sensitive controls and extending equipment life. Application: Motor drives and CNC systems in manufacturing lines where harmonic loads are common. Feature: Aluminum windings paired with a robust NEMA 2 enclosure reduce weight and enhance thermal management. Business Impact: Lower installation and handling costs, easier site retrofit, and improved heat dissipation in floor-mounted installations. Application: Indoor distribution rooms and controlled environments requiring durable, serviceable gear. Feature: DOE 2016 efficiency compliance plus UL Listed certification. Business Impact: Ensures regulatory alignment, minimizes energy spend, and streamlines procurement with recognized standards. Application: Facilities governed by energy codes and safety regulations across industrial plants. Feature: Tap size options (2 at +2.5%, 4 at -2.5%) deliver precise voltage regulation. Business Impact: Maintains voltage accuracy for critical loads, reduces equipment stress from over- or under-voltage, and supports long cable runs. Application: Plants with variable loads and long feeders where voltage drop is a concern. Feature: Sound level 55 dB and 220 °C insulation enable flexible placement. Business Impact: Enables quieter operation in shared spaces and compliance with noise limits, while maintaining insulation integrity under load. Application: Floor-mounted transformers in machinery rooms, control rooms, and adjacent manufacturing bays. Feature: Electrostatic shield modification enhances safety and performance. Business Impact: Improves shielding against capacitive coupling, reducing potential EMI exposure and meeting stricter installation standards. Application: Environments with sensitive instrumentation and stringent EMI requirements.
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FAQs
This floor-mounted unit measures 33.5 in depth, 42.18 in wide, and 66.18 in high, and weighs about 2341 lb. Provide ample clearance for cooling, accessibility for maintenance, and compliance with indoor dry-area installation guidelines (NEMA 2). Consider load distribution, room ventilation, and proximity to the load center to minimize feeder impedance and voltage drop.
K-Factor 13 denotes robust performance under harmonic-rich conditions. The design, aided by the electrostatic shield, reduces EMI and hot spots, preserving voltage quality to sensitive controls and extending motor life when drives and non-linear loads are present.
Yes. The unit lists DOE 2016 Efficient and 10 CFR Part 431 compliance, ensuring energy performance meets contemporary federal efficiency requirements, which helps lower operating costs and support regulatory audits in industrial facilities.
Primary voltage is 480 V with secondary 208Y/120 V. Tap settings include 2 taps at +2.5% and 4 taps at -2.5%, enabling fine-tuned voltage regulation to compensate loading and long feeder runs while maintaining load integrity.
The unit is covered under Eaton’s standard policy (25-000) offering one-year coverage from installation or eighteen months from shipment, whichever occurs first. UL Listing and DOE compliance support safety and performance expectations, and Eaton provides specification sheets and policy documentation for procurement and maintenance planning.