Eaton N48M28B7516AFCULS50 K-Factor Transformer UL Listed
Part Number: N48M28B7516AFCULS50
Quick Summary
Eaton N48M28B7516AFCULS50 nonlinear ventilated transformer powers efficient three-phase distribution in industrial facilities. Customers often contend with heat, energy waste, and space constraints that erode reliability and drive up operating costs. UL Listed for safety, DOE 2016 efficient performance, and 10 CFR Part 431 efficiency standards provide regulatory confidence and long-term savings. This design features copper windings, a NEMA 2 enclosure, and a compact footprint, delivering reliable operation in demanding environments while enabling easier installation and ongoing maintenance for control panels, switchgear rooms, and machine centers.
Product Information
Extended Description
N48M28B7516AFCULS50 Eaton: Eaton Eaton K-Factor nonlinear ventilated transformer, Copper windings, NEMA 2, 60 Hz, 220°C, 75 kVA, Fungus proof, Floor or wall , Three-phase, 480 Delta V, 208Y/120 Vac, Low sound 50 dB, 80°C, 75 kVA, 480 Vac-208Y/120 Vac, DOE 2016
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B7516AFCULS50
UPC
786680203954
Product Length/Depth
31.5 in
Product Height
51 in
Product Width
34.5 in
Product Weight
1.1 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
Copper
Enclosure
NEMA 2
Type
Energy-efficient ventilated transformer
Insulation
220 °C
Mounting
Floor or wall
Tap size
2 at +2.5%, 4 at -2.5%
Frequency rating
60 Hz
Kva Rating
75 kVA
Volt ampere rating
75 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Sound Level
50 dB
Temperature rise
80 °C rise
Voltage rating
480 Vac-208Y/120 Vac
Efficiency
10 CFR Part 431-2016 (DOE 2016)
Modification 1
Electrostatic shield, fungus proof
Special features
K-factor 13
Eaton's high-efficiency dry-type transformers
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Eaton Specification Sheet - N48M28B7516AFCULS50
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: K-Factor 13 and copper windings deliver reduced voltage distortion and robust short-circuit protection → Business Impact: Improved power quality and engineering margin, leading to fewer nuisance trips and longer equipment life. Application: Ideal for facilities with nonlinear loads in manufacturing lines and data centers. Feature: 75 kVA rating with three-phase, 480 V primary and 208Y/120 V secondary → Business Impact: Flexible integration into standard industrial power distribution while supporting scalable workloads. Application: Main distribution centers and panel boards in assembly plants. Feature: NEMA 2 enclosure with floor or wall mounting and 80 °C insulation → Business Impact: Enhanced environmental protection and installation versatility, reducing surveillance and maintenance costs. Application: Harsh factory floors, corridors, and equipment rooms. Feature: DOE 2016 efficiency, 10 CFR Part 431 compliance, and fungus-proof design → Business Impact: Lower operating losses and regulatory alignment, supporting energy-reporting initiatives and uptime. Application: Green facilities programs, compliance-driven projects, and retrofit upgrades. Feature: Sound level of 50 dB and electrostatic shield with fungus-proof features → Business Impact: Quiet operation in office-adjacent spaces and increased reliability in humid environments. Application: Control rooms, laboratories, and clean manufacturing zones. Feature: Tap size options 2 at +2.5%, 4 at -2.5% → Business Impact: Fine-tuned voltage regulation for sensitive loads, reducing downstream equipment stress. Application: Critical control cabinets and machinery with tight voltage tolerances.
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FAQs
What you need to know: confirm a floor or wall mounting location with adequate clearance for the NEMA 2 enclosure, ensure access for service and tap adjustments, and verify ambient temperature does not exceed insulation limits (220 °C). The unit’s compact footprint and copper-wound construction simplify retrofits and new installations in standard equipment rooms.
The device is engineered to meet DOE 2016 efficiency targets and 10 CFR Part 431 requirements, reducing no-load and load losses. This translates to lower energy consumption, improved heat management, and favorable energy reporting in sustainability programs, making it suitable for green facility initiatives.
Yes. The transformer is UL Listed, ensuring compliance with safety standards for electrical components in control cabinets and distribution panels. This certification supports strict safety audits, reduces integration risk, and accelerates procurement approvals in regulated environments.
With a 75 kVA rating and a primary of 480 V feeding a 208Y/120 V secondary, you can reliably serve medium-sized control systems and machine loads while maintaining voltage regulation. The +2.5%/−2.5% tap options help fine-tune output to critical equipment, minimizing outages or performance variability during voltage sags.
Copper windings and robust insulation support long life under typical industrial conditions. Fungus-proof features and a low-sound profile reduce maintenance complexity in humid or noise-sensitive spaces. Regular visual checks, torque checks on mounting hardware, and periodic insulation testing are sufficient to sustain performance over time.