Eaton N48M28F49EES2LS47 K-Factor Transformer - UL Listed
Part Number: N48M28F49EES2LS47
Quick Summary
Eaton K-Factor Transformer provides nonlinear, ventilated power transformation for demanding industrial distribution. This solution is built to reliably deliver 150 kVA from 480 V primary to 208Y/120 V secondary, with taps for ±2.5% to help maintain voltage under load. Many engineers struggle with voltage drift, excessive noise, and rising energy costs when a transformer isn’t matched to the load profile. UL Listed and NEMA TP-1 compliant certifications provide regulatory confidence, while the 115°C rise rating supports continuous operation in harsher environments. With aluminum coil construction, a robust frame, and optional WS34 weather shield, this unit pairs high performance with installation flexibility. The design also reduces acoustic impact to about 47 dB, supporting code-compliant equipment rooms and data centers.
Product Information
Extended Description
N48M28F49EES2LS47 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, 115°C rise, 150 kVA, EE, S2, LS47
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28F49EES2LS47
UPC
786680080517
Product Length/Depth
30.68 in
Product Height
62.18 in
Product Width
31.44 in
Product Weight
1569 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, 80 kA per phase SPD on secondary w/o indicator light, Low sound equal to 47 dB
Coil material
Aluminum
Frame
918A
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Volt ampere rating
150 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208 Y/120 V
Temperature rise
115 °C rise
Modification 1
Low sound 47 dB
Special features
Electrostatically Shielded
Weathershield
WS34
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28F49EES2LS47
Feature: 150 kVA three-phase transformer with 480 V primary and 208Y/120 V secondary. Business Impact: Enables reliable power delivery for critical loads, reducing voltage drop and improving equipment uptime in industrial facilities. Application: Data centers, manufacturing lines, and process control rooms benefit from predictable voltage transformation and scalable capacity. Feature: Tap options with 2 at +2.5% and 4 at -2.5%. Business Impact: Fine-tunes output voltage to stabilize equipment under varying loads, lowering the risk of undervoltage or overvoltage events. Application: Facilities with sensitive drives and PLCs that require tight voltage regulation. Feature: 115°C temperature rise. Business Impact: Higher temperature tolerance supports continuous operation in hot environments, reducing cooling burdens and extending service life. Application: Plants with limited cooling capacity or high ambient temperatures. Feature: Aluminum coil and 918A frame. Business Impact: Lighter weight and durable construction streamline installation, handling, and service access. Application: Retrofit and new-build installations where weight and space constraints matter. Feature: Weathershield WS34 and electrostatic shielding. Business Impact: Enhanced protection against environmental exposure and EMI, improving reliability in harsh outdoor or industrial spaces. Application: Outdoor panels, substations, and equipment rooms near electromagnetic sources. Feature: UL Listed and NEMA TP-1 compliant. Business Impact: Regulatory assurance simplifies purchasing, reduces qualification time, and supports compliance-driven projects. Application: Any regulated facility seeking dependable, standards-aligned power distribution. Feature: 47 dB low sound profile. Business Impact: Quiet operation supports code-compliant spaces and noise-sensitive areas, enabling placement in data centers or office-adjacent equipment rooms. Application: Industrial campuses with noise restrictions and tenant considerations.
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FAQs
Yes. This is a 480 V primary, 208Y/120 V secondary, three-phase transformer rated at 150 kVA. Its +2.5% and -2.5% taps enable voltage adjustments to match load conditions, easing integration with existing 480 V feeders, switchgear, and downstream distribution equipment while maintaining voltage regulation at critical loads.
The unit is UL Listed and NEMA TP-1 compliant, providing essential regulatory assurance for industrial electrical equipment. These certifications support compliance in most North American facilities and align with energy-efficient design expectations, while the 115°C rise rating informs thermal handling in challenging environments.
With taps at +2.5% and -2.5%, you can fine-tune output to counteract voltage drop or surge under variable loading. This improves voltage stability for sensitive equipment and drives, reduces nuisance tripping, and decreases energy waste by keeping downstream loads within tighter voltage tolerances.
Yes. The product features a low sound profile around 47 dB and WS34 weather shielding option, making it appropriate for equipment rooms near office spaces, outdoor installations, and areas with strict noise or weather considerations, while maintaining electrical performance and EMI protection via electrostatic shielding.
The 150 kVA K-Factor transformer delivers reliable voltage regulation, reduced energy waste, and longer run times for critical loads, contributing to lower downtime costs. Maintenance is streamlined by aluminum coil construction, a robust 918A frame, and Eaton’s support ecosystem, with a one-year warranty from installation or 18 months from shipment based on policy.