Eaton N48M28T4921SR K-Factor nonlinear transformer - UL Listed
Part Number: N48M28T4921SR
Quick Summary
The Eaton N48M28T4921SR transformer is a high-efficiency power solution for commercial and industrial panels. Design teams often struggle with cooling, efficiency gaps, and regulatory overhead when upgrading aging transformers, leading to higher energy use and downtime. This model delivers DOE2016 Efficient performance, UL Listed safety, and K13 K-Factor protection, offering a reliable upgrade path for demanding environments. By combining robust three-phase power handling with a ventilated design, it supports faster installations, easier maintenance, and lower lifetime operating costs. As a durable, DOE-compliant choice from Eaton, it helps panel builders meet strict standards while sustaining system performance in harsh industrial settings.
Product Information
Extended Description
N48M28T4921SR Eaton: Eaton NextGen K-Factor, DOE2016 SR-RPT, 150KVA, K13 XFMR, 3PH, 480-208Y/120, 150C
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T4921SR
UPC
786689670252
Product Length/Depth
31.5 in
Product Height
51 in
Product Width
34.5 in
Product Weight
1200 lb
Compliances
DOE2016 Efficient
Certifications
UL Listed
Wiring connection
283B
Type
Energy-efficient ventilated transformer
Frame
943
Kva Rating
150 kVA
Volt ampere rating
150KVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
150 °C rise
Special features
K13
Feature: DOE2016 Efficient and K13 NextGen K-Factor enable reduced losses and cooler operation. Business Impact: Lower energy costs, less cooling load, and extended equipment life. Application: Ideal for dense control panels and retrofit projects where heat and efficiency matter. Feature: 150 kVA rating with 480 V primary and 208Y/120 V secondary. Business Impact: Supports large automation loads and multi-axis equipment without derating. Application: Main distribution in machine racks and process lines. Feature: UL Listed safety certification. Business Impact: Simplifies procurement, improves regulatory conformity, and accelerates project approvals. Application: Critical installations in manufacturing and facilities with strict compliance requirements. Feature: Energy-efficient ventilated design with a 150 °C temperature rise rating. Business Impact: Enhanced cooling performance reduces derating risk and allows flexible mounting in compact footprints. Application: Panels with limited airflow or high ambient temps. Feature: Wiring connection 283B, frame 943, and 1200 lb weight. Business Impact: Clear installation guidance and robust mechanical compatibility for beam/rail mounting and field retrofit. Application: Retrofit projects and new builds where mounting space and compatibility are key. Feature: Three-phase 150 kVA configuration with 480 V to 208Y/120 V. Business Impact: Reliable power distribution for machine controls, robotics, and process automation. Application: Industrial floors, data centers, and panel assemblies requiring steady, regulated secondary voltage.
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FAQs
This model is designed for three-phase HVAC and control panel environments with 480 V primary and 208Y/120 V secondary. Ensure adequate ventilation around the unit, confirm mounting space for the 31.5 in depth and 51 in height, and verify wiring compatibility with 283B connections. Confirm UL Listed compliance and DOE2016-efficient operation in your facility’s power distribution plan.
The K-Factor nonlinear design accounts for non-sinusoidal loading by maintaining stable voltage regulation and reducing hot spots. This leads to lower peak temperature rise under transient or distorted loads, enabling better overall reliability in equipment that experiences harmonics, such as solid-state drives or variable-frequency drives.
Yes. With a 150 kVA rating, three-phase configuration, and 480 V to 208Y/120 V secondary, the N48M28T4921SR is well-suited for data centers and industrial panels needing efficient, regulated power. The DOE2016 efficiency and UL Listed certification further support reliable operation and compliance in mission-critical environments.
The transformer carries UL Listed certification for safety and DOE2016 Efficient performance. It also features K13 K-Factor for improved performance under nonlinear loading. These certifications simplify procurement, improve regulatory alignment, and support large-scale installations across facilities with strict standards.
Expected ROI comes from lower energy losses due to DOE2016 efficiency, reduced cooling requirements thanks to the ventilated design, and improved reliability from UL safety certification and robust construction. Over time, this translates to lower operating costs, reduced downtime, and faster project approvals in retrofit or new-build automation projects.