Eaton N38M28T12XCU Transformer - K-13, UL Listed
Part Number: N38M28T12XCU
Quick Summary
The Eaton N38M28T12XCU transformer provides K‑Factor nonlinear power transformation for three‑phase distribution. Engineers often struggle with heat rise and efficiency losses during scale‑up. This model carries UL Listed safety certification and rugged K‑13 design to meet demanding industrial environments. In addition, the copper windings, copper shield and WS34 weather shield help improve reliability and fault tolerance, delivering measurable business value. This combination supports stable secondary voltages and reduces maintenance cycles, making it suitable for data centers, manufacturing lines, and critical process facilities. UL Listed certification ensures compliance with safety standards while the 380 V/208Y‑120 V configuration supports flexible integration into existing power architectures.
Product Information
Extended Description
N38M28T12XCU Eaton: K-Factor Non Linear Transformer, Ventilated, K-13, Three-phase, PV: 380V, Taps: 2 at +2.5% FCAN, 4 at -2.5% FCBN, SV: 208Y/120V, 150°C, 112.5 kVA, Cu windings, Elec. Shield, Frame: 917, uses WS34
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N38M28T12XCU
UPC
786685197968
Product Length/Depth
24.67 in
Product Height
56.17 in
Product Width
31.44 in
Product Weight
1699 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
917
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
50-60 Hz
Kva Rating
112.5 kVA
Phase
Three-phase
Primary voltage
380 V
Secondary Voltage
208Y/120 V
Temperature rise
150 °C rise
Special features
Electrostatically Shielded
Weathershield
WS34
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N38M28T12XCU
Feature: K‑Factor nonlinear ventilated design manages harmonic content and heat dissipation more effectively. Business impact: lower thermal rise reduces derating risk and extends equipment life, delivering measurable energy efficiency gains in continuous operation environments. Application: motor drives, high‑load manufacturing lines and control panels with demanding power quality needs. Feature: 112.5 kVA three‑phase rating provides substantial headroom for common industrial loads. Business impact: simplifies expansion planning and minimizes the need for auxiliary transformers in panel boards. Application: distribution centers, machine shops, and complex machinery assemblies. Feature: 380 V primary and 208Y/120 V secondary configuration supports standard industrial distribution. Business impact: reduces phase conversion needs and simplifies integration with MCCs and switchgear. Application: equipment rooms and service entrances where diverse loads are connected. Feature: taps at +2.5% FCAN and 4 at -2.5% FCBN enable precise voltage regulation. Business impact: maintains stable downstream voltages under varying load and input conditions, lowering risk of equipment malfunction. Application: sites with fluctuating supply or long feeder runs. Feature: copper windings and electrostatic shield deliver lower losses and improved fault isolation. Business impact: increases efficiency, reduces thermal stress, and enhances protection against transient events. Application: data centers, robotics cells, and critical control applications. Feature: frame 917 with WS34 weather shield adds ruggedness and weather protection. Business impact: supports outdoor or harsh‑environment installations with longer service intervals. Application: outdoor substations, equipment enclosures, industrial yards. Feature: 150°C temperature rise rating supports heavy overload tolerance within safe limits. Business impact: enables higher short‑term loading during peak demand without exceeding thermal limits. Application: peak operation periods and fast‑response processes. Feature: UL Listed certification plus standard Eaton warranty provides risk reduction and compliance confidence. Business impact: reduces regulatory risk and warranty ambiguity while speeding procurement cycles. Application: any industrial installation needing certified safety and service support.
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FAQs
Plan for the unit’s substantial footprint (31.44 in W, 56.17 in H, 24.67 in D) and heavy weight (1699 lb). Ensure frame 917 mounting, appropriate enclosure, and clearances for ventilation. Verify input voltage compatibility (380 V primary) and load distribution with 208Y/120 V secondary; account for WS34 weather shield if installed outdoors.
Taps provide ±2.5% regulation around the nominal primary voltage to compensate for supply fluctuations and feeder voltage drop. Use the +2.5% tap where supply voltage is expected to trend high and the -2.5% taps where it may dip, maintaining stable secondary voltage and protecting connected equipment.
Yes. The K‑Factor nonlinear ventilated design handles harmonic content and heat, while the 112.5 kVA rating supports mid‑to‑large loads. The 380 V/208Y‑120 V configuration aligns with common facility power rails, and copper windings plus a shield improve reliability and protection—key for sensitive IT gear and automation lines.
The unit is UL Listed, confirming compliance with established safety standards for industrial transformers. This certification reduces regulatory risk, simplifies procurement through recognized compliance, and supports safer integration into panels, MCCs, and service entrances across industrial environments.
With copper windings and a robust design, the transformer delivers improved efficiency and reliability, potentially lowering energy costs and maintenance cycles. A one‑year warranty from installation (or 18 months from shipment) provides early risk mitigation, while the WS34 shield and weather protection extend service intervals in harsh environments.