Eaton N52M31T45CU Transformer - K-Factor UL Listed
Part Number: N52M31T45CU
Quick Summary
The Eaton N52M31T45CU transformer delivers reliable three-phase power for industrial control panels. This K-Factor nonlinear ventilated design helps mitigate harmonics and maintain voltage when loads vary. UL Listed certification ensures safety and compliance in demanding environments, supporting installation in a wide range of facilities. For engineers and procurement teams, the 45 kVA rating paired with a 460 V primary and 220Y/127 V secondary enables seamless integration into existing power systems while preserving efficiency. The rugged frame and copper windings are built for longevity, while Eaton’s warranty and service support help protect your uptime and total cost of ownership. Designed for industrial environments, it supports reliable operation under elevated temperature rise. This positions it as a dependable backbone for control systems.
Product Information
Extended Description
N52M31T45CU Eaton: K-Factor Non Linear Transformer, Ventilated, K-13, Three-phase, PV: 460V, Taps: 2 at +2.5% FCAN, 4 at -2.5% FCBN, SV: 220Y/127V, 150°C, 45 kVA, Cu windings, Elec. Shield, Frame: 915D, uses WS39
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N52M31T45CU
UPC
786680087516
Product Length/Depth
22 in
Product Height
39 in
Product Width
29 in
Product Weight
545 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
915D
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Kva Rating
45 kVA
Phase
Three-phase
Primary voltage
460 V
Secondary Voltage
220Y/127 V
Temperature rise
150 °C rise
Special features
Electrostatically Shielded
Weathershield
WS39
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N52M31T45CU
Feature → Business Impact → Application: The N52M31T45CU uses a K-Factor nonlinear design with copper windings and an electrostatic shield to tolerate nonlinear loading with minimal efficiency penalties. The business impact is reduced copper loss and lower thermal stress during harmonically rich operation, extending transformer life and stabilizing output for sensitive loads. This makes it ideal for automated control panels and process lines where motor drives and inrush currents are routine. Feature → Business Impact → Application: Ventilated cooling paired with the 915D frame and WS39 weather shield provides robust heat dissipation and environmental protection. The higher thermal headroom supports continuous operation at 45 kVA, minimizing derating and downtime in factories, data centers, or outdoor switchgear applications. Feature → Business Impact → Application: Taps at +2.5% FCAN and 4 at -2.5% FCBN enable on-site voltage tuning to match grid conditions and tolerate supply fluctuations, reducing the need for additional regulation equipment and enabling smoother startup sequences in manufacturing lines. Feature → Business Impact → Application: Frame 915D, copper windings, and an electrostatic shield offer rugged construction and safety while simplifying installation into standard control cabinets or switchgear assemblies. This combination lowers maintenance costs and improves long-term reliability across automation equipment. Feature → Business Impact → Application: UL Listed certification and a 150°C rise rating provide safety compliance and operational confidence for continuous-duty applications, from panel builders to OEMs integrating 46 kV class components. With WS39 protection and warranty support, customers benefit from accelerated procurement and predictable lifecycle costs.
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FAQs
Begin by confirming cabinet clearance for a 39 in height and 29 in width, then mount the 915D-frame transformer securely. Connect the primary to 460 V and the secondary to 220Y/127 V, noting the taps (+2.5% FCAN and -2.5% FCBN) for voltage matching. Use proper copper conductors and follow electrical code requirements, ensuring the electrostatic shield is in place for added insulation and safety.
The K-Factor nonlinear design reduces harmonic heating and improves voltage regulation under non-sinusoidal loads, which lowers overall thermal stress and extends transformer life. This translates to more stable output for motor drives and control electronics, improved uptime for automated lines, and reduced maintenance costs in busy manufacturing environments.
Yes. The N52M31T45CU is a three-phase, 45 kVA transformer with a 460 V primary and 220Y/127 V secondary, designed for automation panels and power distribution within manufacturing and process environments. Its ventilated design, copper windings, and electrostatic shield support reliable operation under typical industrial duty cycles and startup surges.
The product is UL Listed, providing recognized safety certification for electrical components in many regions. This certification supports faster procurement decisions by validating safety compliance for panel builders and OEMs, reducing validated risk during integration into critical power distributions and automation systems.
Eaton provides a warranty per Selling Policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. In addition to the warranty, customers benefit from Eaton’s ongoing service support and access to specification sheets and catalog updates, helping protect uptime and simplify maintenance planning for the N52M31T45CU.