Eaton N48M28B3016CULS43 K-Factor Transformer - DOE2016
Part Number: N48M28B3016CULS43
Quick Summary
Eaton N48M28B3016CULS43 is a K-Factor transformer that provides efficient 480 V to 208Y/120 V conversion for industrial power distribution. Many facilities struggle with energy efficiency, heat dissipation, and space constraints in power distribution. It complies with DOE 2016 Efficient standards and UL Listed; the NEMA 2 enclosure supports reliable indoor operation. Designed for manufacturers and energy managers, this transformer enables reliable power management for critical loads while reducing total cost of ownership. Its compact footprint and compatibility with floor or upright wall mounting streamline installation in existing electrical rooms. Trust in its copper windings and shielded design for durable, long-life service in demanding environments.
Product Information
Extended Description
N48M28B3016CULS43 Eaton: Eaton K-Factor nonlinear ventilated transformer, Copper windings, NEMA 2, FR940, 60 Hz, 220C, 30 kVA, Three-Phase, 480 to 208Y/120, 80C rise, Shielded, DOE 2016, WS58, 283B, K13, 43 dB
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B3016CULS43
UPC
786680244292
Product Length/Depth
21.13 in
Product Height
36.88 in
Product Width
24.88 in
Product Weight
497 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
940
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
30 kVA
Volt ampere rating
30 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Sound Level
43 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
WS58
Feature: K-Factor nonlinear ventilated design reduces harmonic currents and improves efficiency under nonlinear loading. Business Impact: lowers energy costs, reduces cooling needs, and extends transformer life in systems with motor drives and power electronics. Application: ideal for manufacturing lines, automated plants, and distribution cabinets. Feature: DOE 2016 Efficient performance with UL Listed certification back regulatory compliance and reliability. Business Impact: lowers operating costs, simplifies compliance audits, and improves warranty coverage. Application: suitable for industrial facilities that must meet energy codes and procurement specs. Feature: Copper windings and 220 °C insulation with an 80 °C rise rating provide robust thermal performance. Business Impact: higher service uptime under heavy loads and improved heat tolerance. Application: high-demand automation equipment and motor control centers. Feature: NEMA 2 enclosure offers durable indoor protection. Business Impact: safe operation in dry, dusty spaces and easier installation in conventional electrical rooms. Application: plant floors, electrical rooms, service bays. Feature: Tap size 2 at +2.5%, 4 at -2.5% enables voltage regulation to maintain downstream voltages. Business Impact: tighter voltage control reduces equipment stress and improves performance. Application: sites with fluctuating mains or non-standard loads. Feature: Electrostatic shield and copper wound construction with WS58 weather shield option provide isolation and protection against interference. Business Impact: enhanced reliability for sensitive electronics and extended transformer life. Application: critical loads and equipment with strict EMI requirements. Feature: Three-phase 480 V to 208Y/120 V secondary configuration supports standard industrial distribution. Business Impact: simplifies integration with existing switchgear and MCCs. Application: manufacturing facilities and data centers. Feature: Sound level 43 dB keeps noise within typical plant spaces. Business Impact: reduces audible disruption in shared or open-plan facilities. Application: near workstations, control rooms, and equipment yards.
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FAQs
This unit is designed for floor or wall mounting in upright orientation, enabling flexible installation in existing electrical rooms. Its 940 frame size and NEMA 2 enclosure support stable placement on the plant floor or within equipment racks, reducing retrofit complexity and saving valuable space in crowded facilities.
Rated at 30 kVA with a K-Factor nonlinear design, it mitigates harmonic currents from nonlinear loads such as drives and SCR-based equipment. The result is improved efficiency, reduced overheating, and longer insulation life, which translates to lower operating costs and higher reliability in automated production lines.
Yes. The transformer uses a NEMA 2 enclosure and UL-listed construction, optimized for indoor dry environments. For dusty spaces, ensure appropriate filtration and mounting clearances; the enclosure provides robust protection while maintaining accessibility for maintenance and monitoring.
The unit provides a primary of 480 V and secondary of 208Y/120 V with tap settings of 2 at +2.5% and 4 at -2.5%. This enables voltage regulation to compensate for supply fluctuations, improving downstream equipment performance and reducing voltage stress on sensitive loads.
DOE 2016 efficiently reduces standby and running losses, lowering energy costs and supporting sustainability reporting. UL listing confirms safety and reliability, while ongoing maintenance benefits include predictable thermal performance, reduced cooling requirements, and easier procurement with auditable compliance records.