Eaton N48M28B1216CULS50 Transformer - K-Factor 13
Part Number: N48M28B1216CULS50
Quick Summary
Eaton N48M28B1216CULS50 transformer provides efficient three-phase power distribution for industrial facilities. In many plants, energy waste and inconsistent power quality drive higher operating costs and downtime; this unit tackles those challenges with a robust K-Factor nonlinear design and ventilated cooling. It carries UL Listed safety certification, meets DOE2016 Efficient standards, and complies with 10 CFR Part 431 Efficient requirements, offering regulatory peace of mind. The rugged NEMA 2 enclosure, copper windings, and 50 dB sound level help keep operations quiet and reliable, while a practical footprint and straightforward connections support faster installations and easier maintenance.
Product Information
Extended Description
N48M28B1216CULS50 Eaton: Eaton K-Factor nonlinear ventilated transformer, Copper windings, NEMA 2, FR943, 60 Hz, 220C, 112.5 kVA, Three-Phase, 480 to 208Y/120, 80C rise, Shielded, DOE 2016, WS60, 283B, K13, 50 dB
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B1216CULS50
UPC
786680244575
Product Length/Depth
31.5 in
Product Height
51 in
Product Width
34.5 in
Product Weight
1227 lb
Compliances
DOE2016 Efficient
Certifications
UL Listed
Catalog Notes
10 CFR Part 431 (2016) Efficient
Coil material
Copper
Enclosure
NEMA 2
Wiring connection
283B
Type
Energy-efficient ventilated transformer
Frame
943
Insulation
220 °C
Material
Copper windings
Mounting
Floor or wall, upright only
Tap size
2 at +2.5%, 4at -2.5%
Frequency rating
60 Hz
Kva Rating
112.50 kVA
Volt ampere rating
112.50 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
Special features
K-factor 13
Weathershield
WS60
Feature: K-Factor nonlinear design and ventilation enhance loading tolerance and harmonic handling. Business Impact: Improved power quality and reduced stress on downstream equipment, translating to lower maintenance costs and fewer unplanned shutdowns. Application: Critical loads and motor-driven systems in manufacturing and process environments. Feature: 112.50 kVA three-phase rating with 480 V primary and 208Y/120 V secondary. Business Impact: Consolidates distribution needs, reducing footprint and panel count while delivering reliable voltage transformation. Application: Plant distribution boards and equipment rooms requiring robust step-down capacity. Feature: NEMA 2 enclosure and 50 dB sound level. Business Impact: Safe indoor operation with quieter plant environments, enabling closer equipment spacing and simpler approvals. Application: Assembly lines, warehouses, and control rooms where noise and protection matter. Feature: Copper windings and 220 °C insulation. Business Impact: Higher current capability, lower losses, and longer service life under demanding loads. Application: High-demand motors and drives in harsh industrial settings. Feature: DOE 2016 energy efficiency and 10 CFR Part 431 compliance. Business Impact: Lower energy costs and regulatory assurance for energy-management programs. Application: Facilities pursuing energy-performance targets and compliance reporting. Feature: Electrostatic shield and K13 rating with WS60 weathershield option. Business Impact: Enhanced surge immunity and protection in variable environments, supporting critical control circuits. Application: Data centers, controls housings, and harsher indoor environments. Feature: 2 at +2.5%, 4 at -2.5% tap sizing for voltage regulation. Business Impact: Precise voltage control to maintain reliable operation under load fluctuations. Application: VAR-heavy production lines and equipment with sensitive electronics. Feature: Floor or wall mounting (upright only) and 3-phase integration. Business Impact: Flexible installation options that simplify retrofits and new builds. Application: Plant rooms, machine bays, and retrofit projects.
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FAQs
The transformer is designed for flexible installation on the floor or mounted upright on a wall, using standard 283B wiring connections. With a 31.5 in depth, 34.5 in width, and 51 in height footprint, it integrates into typical industrial rooms and equipment rooms. Its weight of approximately 1,227 lb warrants proper lifting, anchoring, and clearances per installation guidelines.
Key specs include a 112.5 kVA three-phase rating, primary voltage of 480 V, secondary voltage of 208Y/120 V, 60 Hz operation, copper windings, and 80 °C rise insulation. It features a K-Factor of 13, electrostatic shielding, and a sound level around 50 dB. Voltage regulation is supported through taps at +2.5% and -2.5%.
Yes. With a stated sound level of 50 dB and a compact footprint for a 112.5 kVA unit, it fits in many noise-conscious facilities. The NEMA 2 enclosure provides indoor protection, and the ventilated design helps manage heat without excessive noise, making it suitable for production floors, control rooms, and nearby equipment bays where space is at a premium.
The transformer is UL Listed and DOE 2016 Efficient, with compliance to 10 CFR Part 431 Efficient standards. These certifications support safety, energy performance, and regulatory alignment for modern industrial facilities. When budgeting and auditing, include ease of procurement, traceability, and documentation for energy-performance reporting.
Expect ROI driven by energy savings from DOE2016 efficiency, reduced energy losses, and lower cooling loads. Copper windings and 80 °C rise insulation support long service life, while features like the electrostatic shield enhance protection against surges. Maintenance is typically routine (visual checks and connections) with infrequent winding work, given robust construction and protection features.