Eaton N48M28T33CU K-Factor nonlinear ventilated transformer - UL Listed
Part Number: N48M28T33CU
Quick Summary
Eaton N48M28T33CU K-Factor nonlinear ventilated transformer powers critical three-phase industrial power systems. Plant engineers often confront voltage fluctuations, harmonic loads, and downtime as equipment demands shift. UL Listed certification supports electrical safety compliance, while the K-13 design and 150°C rise enable reliable operation in harsh environments. With a 480 V primary and 208Y/120 V secondary, this transformer fits standard distribution schemes, simplifying procurement and installation for power management applications. For buyers, the combination of rugged construction, predictable performance, and a clear warranty translates to reduced maintenance risk and improved total cost of ownership.
Product Information
Extended Description
N48M28T33CU Eaton: K-Factor Non Linear Transformer, Ventilated, K-13, Three-phase, PV: 480V, Taps: 2 at +2.5% FCAN, 4 at -2.5% FCBN, SV: 208Y/120V, 150°C, 300 kVA , Cu windings, Elec. Shield, Frame: 919, uses WS35
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T33CU
UPC
786680105371
Product Length/Depth
36.23 in
Product Height
75 in
Product Width
44.2 in
Product Weight
3400 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.
Certifications
UL Listed
Coil material
Copper
Type
Ventilated transformer
Design
K-13
Frame
919
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Kva Rating
300 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
150 °C rise
Special features
Electrostatically Shielded
Weathershield
WS35
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28T33CU
Feature: K-Factor nonlinear transformer design is engineered to tolerate harmonic-rich loads without excessive heating. Business Impact: improves voltage stability and extends insulation life under nonlinear loading. Application: ideal for drives, PWM equipment, and other nonlinear loads in manufacturing floors. Paragraph 2: Feature: Ventilated cooling with a 150°C rise rating enables higher continuous loading and faster heat dissipation. Business Impact: supports reliable operation during peak demand and reduces the need for derating. Application: process lines and equipment with transient heat. Paragraph 3: Feature: Tap size options of 2 at +2.5% FCAN and 4 at -2.5% FCBN provide precise voltage regulation. Business Impact: maintains secondary voltage within tolerance, protecting sensitive motors and controls. Application: critical distribution panels and motor drives. Paragraph 4: Feature: Copper windings and an electrostatic shield reduce copper losses and suppress EMI. Business Impact: improves efficiency and electrical noise immunity, enhancing safety and performance. Application: noisy industrial environments with stringent control requirements. Paragraph 5: Feature: Weather Shield WS35 and rugged Frame 919 enclosure support outdoor and harsh indoor installations. Business Impact: simplifies site setup and minimizes enclosure costs while preserving cooling and protection. Application: plant yards, service entrances, and exposed equipment rooms. Paragraph 6: Feature: 300 kVA three-phase rating with 480 V to 208Y/120 V conversion and 60 Hz operation. Business Impact: provides dependable, scalable power distribution for high-load facilities with predictable maintenance needs. Application: comprehensive plant-wide power management and distribution.
Get a Quick Quote for a Eaton N48M28T33CU
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton N48M28T33CU?
Enquire Now
FAQs
Installation considerations for the N48M28T33CU include confirming adequate footprint (44.2 in wide, 75 in high, 36.23 in deep) and ensuring proper ventilation for hot operation. Mounting should accommodate the 3-phase primary (480 V) and secondary (208Y/120 V) connections, with the WS35 weather shield for outdoor or harsh environments. Also plan tap adjustments (+2.5% FCAN and -2.5% FCBN) during setup and ensure the electrostatic shield is in place.
Key specifications include a 300 kVA rating, three-phase configuration, 60 Hz frequency, 480 V primary, and 208Y/120 V secondary. It uses copper windings, Frame 919, and WS35 weather shielding, with K-13 design and a 150°C rise. Tap options are 2 at +2.5% and 4 at -2.5% to aid voltage regulation. Certification on record is UL Listed.
Yes. The transformer is a K-Factor nonlinear design, specifically engineered to cope with harmonic-rich loads common in drives and PWM equipment. This reduces thermal stress, stabilizes voltage, and improves overall reliability. The electrostatic shield and ventilated cooling further mitigate EMI and heat, making it suitable for manufacturing floors and processing lines with nonlinear demand.
The N48M28T33CU is UL Listed, confirming compliance with prescribed electrical safety standards for industrial power distribution equipment. This certification supports safe installation, reduces risk during commissioning, and aligns with procurement requirements for regulated facilities. Always verify any site-specific compliance needs, as additional regional certifications may apply depending on installation location.
The unit’s rugged construction, 60 Hz rating, and 150°C rise capability support longer service intervals under typical industrial conditions. The 300 kVA rating provides scalable power distribution with fewer parallel units, while the UL Listed certification simplifies compliance. Warranty coverage (one year from installation or 18 months from shipment) helps de-risk ownership, contributing to a favorable total cost of ownership and reliability of power infrastructure.