Eaton N48M31T45CU Transformer - UL Listed 60 Hz 45 kVA
Part Number: N48M31T45CU
Quick Summary
Eaton N48M31T45CU transformer delivers nonlinear, ventilated power for three-phase distribution in industrial facilities. Operators often struggle with voltage stability, heat buildup, and EMI in high-power panels, risking downtime. UL Listed certification and a rugged NEMA 2 enclosure provide compliance and protection in demanding environments. With 45 kVA capacity, a 480 V primary, and a 220Y/127 V secondary, it enables efficient, code-compliant power distribution while reducing maintenance costs. Designed for 60 Hz operation with copper windings and electrostatic shielding, it supports KT-13 design intent for compact, serviceable installations. Taps at +2.5% and -2.5% provide voltage flexibility for harmonics and loading conditions common in industrial plants.
Product Information
Extended Description
N48M31T45CU Eaton: Eaton Nonlinear ventilated xfmr, KT-13, Three-phase, Primary voltage: 480V, Taps: 2 at +2.5% FCAN, 4 at -2.5% FCBN, Secondary voltage: 220Y/127V, 150°C, 45 kVA, Copper windings, FR915D, 283B, WS39, Electrostatically shielded, 60 Hz, NEMA 2
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M31T45CU
UPC
786680102806
Product Length/Depth
22 in
Product Height
39 in
Product Width
29 in
Product Weight
1 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
Enclosure
NEMA 2
Wiring connection
283B
Type
Nonlinear, ventilated transformer
Design
KT-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
480 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 - N48M31T45CU
Feature: Nonlinear KT-13 ventilated design improves harmonic response and limits temperature rise, translating to greater reliability in demanding loads. Business impact: reduced risk of nuisance outages and lower cooling costs in large control panels. Application: ideal for motor drives, power distribution boxes, and automation cabinets where harmonics and heat are critical constraints. Feature: Copper windings for high conductivity and lower losses. Business impact: improved efficiency, reduced energy waste, and longer transformer life. Application: essential in energy-conscious plants and retrofit projects seeking dependable performance. Feature: Tap settings (+2.5% FCAN, -2.5% FCBN) enable precise voltage regulation under fluctuating supply. Business impact: steadier output, minimized equipment stress, and better protected downstream devices. Application: facilities with long feeders or variable utility voltages. Feature: NEMA 2 enclosure with optional WS39 weathershield. Business impact: straightforward installation planning and robust enclosure protection in varied indoor environments. Application: control rooms, workshops, and outdoor cabinets in moderate climates. Feature: Electrostatic shielding reduces EMI and improves signal integrity. Business impact: enhanced PLC and drive reliability, easier EMC compliance, and fewer interference-related faults. Application: automation networks and drive-intensive applications in noisy electrical environments. Feature: 60 Hz compatibility, 150°C rise rating, 45 kVA capacity, and copper windings deliver consistent performance under load. Business impact: predictable operation, lower maintenance, and capability to support mid-size automation architectures. Application: industrial power distribution and system upgrades requiring reliable, scalable power.
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FAQs
Install the N48M31T45CU within a suitable enclosure rated for indoor use as a NEMA 2 unit. Connect the primary to a 480 V supply and the secondary to 220Y/127 V equipment, using the 283B wiring connection. Set taps to your operating voltage (+2.5% FCAN or -2.5% FCBN) and verify adequate clearance for 150°C rise. Ensure UL Listed installation practices and verify grounding per local codes.
Key specs include a 45 kVA rating, three-phase configuration, 480 V primary, 220Y/127 V secondary, 60 Hz operation, copper windings, KT-13 design, frame 915D, and taps at +2.5% FCAN and -2.5% FCBN. Enclosure is NEMA 2, with electrostatic shielding and a 150°C rise. Certification is UL Listed, with WS39 as optional weather shielding.
Yes. It uses a K-Factor nonlinear design optimized for harmonic currents, helping to manage overheating and waveform distortion common with drives and PLCs. The copper windings and electrostatic shielding further minimize EMI, improving signal integrity and reliability in automation interfaces while maintaining compliance with electrical standards.
The transformer is UL Listed for safety and compliance. It comes in a NEMA 2 enclosure appropriate for indoor use, with an optional WS39 weather shield for enhanced protection in exposed environments. The unit operates at 60 Hz and supports a broad voltage range through taps, making it suitable for controlled industrial spaces.
Expect improved reliability due to the KT-13 nonlinear ventilated design, copper windings with lower losses, and effective EMI shielding that reduces downtime from electrical faults. The unit’s 45 kVA rating supports scalable automation architectures, while the UL listing and rugged enclosure reduce compliance risks. The warranty mirrors Eaton policies: 1 year from installation or 18 months from shipment.