Eaton N43M28T25X Ventilated Transformer - UL Listed
Part Number: N43M28T25X
Quick Summary
Eaton N43M28T25X is a K-Factor nonlinear ventilated transformer used for three-phase power distribution in industrial facilities. Maintaining transformer efficiency under variable loads and heat in crowded electrical rooms is a common challenge for plant engineers. This unit carries UL Listed safety certification and a 150°C rise rating, with aluminum windings and an electrostatic shield to enhance reliability in harsh environments. The ventilated design and WS38 weather shield support higher ambient temperatures and outdoor/industrial settings. By integrating with Eaton’s power management ecosystem, it enables predictable performance, reduced energy waste, and lower maintenance costs across data centers, manufacturing lines, and process facilities. This translates to longer asset life and improved regulatory compliance.
Product Information
Extended Description
N43M28T25X Eaton: K-Factor Non Linear Transformer, Ventilated, K-13, Three-phase, PV: 416V, Taps: 2 at +2.5% FCAN, 4 at -2.5% FCBN, SV: 208Y/120V, 150°C, 25 kVA, Al windings , Elec. Shield, Frame: 912B, uses WS38
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N43M28T25X
UPC
786680061295
Product Length/Depth
16.5 in
Product Height
30 in
Product Width
23 in
Product Weight
268 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
Aluminum
Type
Ventilated transformer
Design
K-13
Frame
912B
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
50-60 Hz
Phase
Three-phase
Primary voltage
416 V
Secondary Voltage
208Y/120 V
Temperature rise
150 °C rise
Special features
Electrostatically Shielded
Weathershield
WS38
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N43M28T25X
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: K‑13 K‑Factor nonlinear design. Business Impact: This configuration mitigates harmonic currents, reduces stray losses, and minimizes temperature rise under non-linear loads, delivering measurable efficiency gains for variable-speed drives and control panels. Application: Ideal for manufacturing lines, data centers, and process facilities where harmonic distortion can compromise performance and equipment life. Feature: Ventilated construction with aluminum windings and electrostatic shield. Business Impact: Enhanced cooling capacity supports full 25 kVA duty in hot environments, extending transformer life and stabilizing outputs. Application: Plants with limited cabinet space, high ambient temperatures, or outdoor installations benefit from WS38 weather shield compatibility. Feature: Voltage regulation with selectable taps: 2 at +2.5% FCAN and 4 at -2.5% FCBN. Business Impact: Precise voltage matching reduces voltage drop, improves PLC reliability, and lowers energy waste due to under- or over-voltage conditions. Application: Critical process lines and automation gear requiring tight supply tolerances across load variability. Feature: UL Listed certification and robust construction (Frame 912B). Business Impact: Meets safety standards for electrical installations and simplifies procurement with assured compatibility. Application: Industrial facilities needing compliance verification, field service readiness, and consistent performance in both indoor electrical rooms and harsh environments. Feature: Warranty and installation convenience: 1 year from installation or 18 months from shipment plus Eaton support. Business Impact: Reduces life-cycle risk and supports faster ROI through dependable uptime. Application: Suitable for new builds, retrofits, and upgrades in power management and distribution infrastructure.
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FAQs
Plan for a clear installation footprint measuring the 16.5 in depth, 23 in width, and 30 in height with the 268 lb weight. Ensure proper mounting to support the 912B frame, provide adequate clearance for ventilation, and verify access to taps for +2.5% and -2.5% adjustments. The WS38 weather shield supports outdoor or harsh indoor environments, reducing exposure to contaminants.
Core specs include a 25 kVA rating, 416 V primary, 208Y/120 V secondary, three-phase configuration, 50-60 Hz operation, aluminum windings, electrostatic shield, and a 150°C rise. It features taps of 2 at +2.5% and 4 at -2.5% to fine-tune voltage, and a UL Listed certification for safety compliance.
Yes. Its K-Factor nonlinear design mitigates harmonic currents, improving reliability of sensitive automation equipment. The ventilated construction keeps temperatures in check under non-linear loads, while the UL Listed rating supports compliance. This makes it well-suited for data centers, automated manufacturing lines, and process facilities with variable demand.
The transformer carries UL Listed certification for safety compliance. Warranty terms specify one year from installation or eighteen months from shipment, whichever comes first, backed by Eaton’s selling policy 25-000. This reduces risk during procurement and provides post-sale support for equipment reliability.
The combination of robust cooling (ventilated design), harmonic control (K‑Factor), and voltage regulation capability reduces energy waste and stress on downstream components. Aluminum windings offer corrosion resistance and lower maintenance. Together with a predictable 25 kVA capacity and warranty coverage, this unit supports longer asset life, lower maintenance costs, and faster time-to-value for new builds or retrofits.