Eaton N48M47B22EE K-Factor transformer - UL Listed
Part Number: N48M47B22EE
Quick Summary
N48M47B22EE is a K-Factor nonlinear ventilated transformer for three-phase 480V to 480Y/277V power distribution. Engineers often confront voltage drift under load changes and harmonics that stress downstream equipment and limit efficiency. This model is UL Listed, NEMA TP-1 compliant, and engineered for efficient operation in ventilated enclosures. With 225 kVA, 60 Hz operation, and +2.5% / -2.5% taps, it maintains voltage accuracy across varying load conditions. The aluminum coil, electrostatic shielding, and 80 °C rise support compact layouts, lower cooling costs, and longer asset life. Overall, Eaton’s transformer delivers predictable performance, simplifies compliance planning, and aligns with modern power management and distribution strategies.
Product Information
Extended Description
N48M47B22EE Eaton: Eaton K-Factor nonlinear ventilated transformer, KT-13 (3-phase), PV 480V, Taps: 2 at +2.5% /4 at -2.5%, SV 480Y/277V, 80°C rise, 225 kVA, EE
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M47B22EE
UPC
786680044465
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
0.001 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.
Compliances
NEMA TP-1 Compliant
Certifications
UL Listed
Catalog Notes
Nema TP-1 efficient
Coil material
Aluminum
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Volt ampere rating
225 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
480 Y/277 V
Temperature rise
80 °C rise
Special features
Electrostatically Shielded
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M47B22EE
Feature: K-Factor nonlinear design with electrostatic shielding enhances harmonic resilience and fault tolerance. Business impact: reduces peak currents, lowers transformer and switchgear heating, and extends asset life in systems with nonlinear loads. Application: ideal for data centers, continuous-process manufacturing, and other critical power networks where power quality directly affects uptime and productivity. Feature: taps at +2.5% and -2.5% provide precise voltage regulation under load transients. Business impact: improves voltage stability at downstream equipment, minimizes flicker, and reduces cooling energy by maintaining components within optimal tolerance. Application: distribution panels, motor drives, and feeders in facilities with variable supply voltages and long feeder runs. Feature: 225 kVA three-phase rating with 60 Hz operation supports mid-to-large loads while enabling a more compact footprint. Business impact: reduces the number of transformers required, simplifies wiring, and optimizes space in switchgear rooms. Application: manufacturing lines, data centers, and commercial buildings needing reliable, scalable power distribution. Feature: 80 °C rise and ventilated construction enable safe operation in semi-enclosed spaces. Business impact: better heat management, lowered cooling requirements, and longer insulation life. Application: equipment rooms with limited ventilation or tight layouts where efficient thermal design matters. Feature: Aluminum coil and electrostatic shielding provide durability and EMI/RFI suppression. Business impact: lighter weight for installation, improved short-circuit performance, and reduced external interference with sensitive instrumentation. Application: controls cabinets, industrial automation panels, and environments with stringent EMC requirements. Feature: UL Listed and NEMA TP-1 compliant with Eaton warranty coverage. Business impact: procurement risk reduction, faster commissioning, and predictable service terms across projects. Application: regulated facilities and OEM integrations where compliance, traceability, and support are critical.
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FAQs
Plan for ventilated space to maintain the 80 °C rise rating, provide adequate clearance for heat dissipation, and mount in a standard enclosure suitable for three-phase power. Utilize the +2.5% and -2.5% taps to regulate voltage under load transients and ensure connections match 480 V primary and 480Y/277 V secondary specifications. Confirm UL Listed and NEMA TP-1 compliance during commissioning.
K-Factor nonlinear design reduces harmonic currents and stabilizes peak currents, lowering thermal stress on transformers and upstream breakers. This leads to improved power quality, reduced nuisance trips, and longer asset life in facilities with nonlinear loads such as VFDs, data-center equipment, and high-density manufacturing drives.
Yes. It is UL Listed and NEMA TP-1 compliant, with electrostatic shielding for EMI/EMI suppression. These certifications streamline procurement, reduce pre-commissioning risk, and support project approvals in regulated environments such as hospitals, data centers, and critical manufacturing facilities.
Key ratings include a 225 kVA three-phase footprint, 60 Hz operation, primary voltage of 480 V, secondary voltage of 480Y/277 V, and voltage taps at +2.5% and -2.5%. The 80 °C rise rating supports confined spaces, and aluminum coil construction aids in installation and heat management within standard distribution panels.
The unit is covered by Eaton’s warranty: one year from installation or eighteen months from shipment, whichever occurs first. Combined with high efficiency, reduced cooling needs, and reliable UL/NEMA TP-1 compliance, this transformer offers lower operating costs, predictable maintenance, and faster project commissioning, delivering favorable total cost of ownership over the equipment life.