Eaton N48D28T7521LS50 K-Factor nonlinear transformer - UL
Part Number: N48D28T7521LS50
Quick Summary
Eaton K-Factor nonlinear ventilated transformer provides reliable power conditioning for 3-phase industrial loads. In busy electrical rooms, heat buildup and limited space threaten uptime; this unit's vented design helps dissipate load-generated heat and reduce hot spots, improving overall reliability. The UL-listed safety certification supports regulatory compliance across manufacturing floors, data centers, and distribution yards. With a 75 kVA rating and 480Y/120 secondary, it supports critical infrastructure without overcomplicating your power distribution. By integrating this transformer your facility gains consistent voltage topology, robust protection margins, and easier maintenance planning, while staying aligned with efficiency targets and long-term total cost of ownership goals.
Product Information
Extended Description
N48D28T7521LS50 Eaton: Eaton K-Factor nonlinear ventilated transformer, 75 kVA, Vented XFMR, 480-208Y/120, 3-phase, K13
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48D28T7521LS50
UPC
786689664251
Product Length/Depth
31.5 in
Product Height
51 in
Product Width
34.5 in
Product Weight
1.1 lb
Certifications
UL Listed
Type
Vented XFMR
Kva Rating
75 kVA
Phase
Three-phase
Feature: K-Factor nonlinear performance for non-linear loads → Business Impact: Reduces harmonic distortion and improves voltage quality, enabling sensitive equipment to operate within spec → Application: Data centers and manufacturing lines with high harmonic demand. Feature: Ventilated XFMR design → Business Impact: Enhanced cooling capacity lowers hotspot risk and extends transformer life → Application: High-load industrial environments and enclosed electrical rooms. Feature: 75 kVA, three-phase rating → Business Impact: Adequate capacity for intermediate power distribution without over-sizing → Application: Mid-size facilities and localized power distribution nodes. Feature: 480-208Y/120 voltage ratio → Business Impact: Direct compatibility with common facility distributions, reducing additional conversion equipment → Application: Plant floor power networks and distribution panels. Feature: UL Listed certification → Business Impact: Streamlined procurement and compliant installation across regulated facilities → Application: Automotive, food & beverage, and pharma manufacturing environments. Feature: Compact footprint (31.5 in L × 34.5 in W × 51 in H) → Business Impact: Easier integration into crowded electrical rooms and retrofit projects → Application: Retrofit projects and new installations needing efficient space use. Feature: K13 specification → Business Impact: Strong protection against high-load surges, improving reliability and uptime → Application: Critical process lines and data center infrastructure.
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FAQs
This transformer uses a standard 75 kVA three-phase footprint with dimensions of approximately 31.5 in (L) by 34.5 in (W) by 51 in (H). Ensure at least 12 in of clearance on all sides for ventilation, and provide a sturdy, level mounting surface in a ventilated electrical room. Use appropriate connectors rated for three-phase, 480Y/120 service, and verify UL-listed installation requirements are met per local and national codes.
The unit delivers 75 kVA with a 480Y/120 secondary in a three-phase configuration and incorporates K-Factor nonlinear performance (K13) to manage harmonics from non-linear loads. Its vented design supports effective heat dissipation, improving reliability under continuous operation, and its UL-listed certification supports safe, compliant use in regulated facilities.
Yes, the transformer is specified for 480Y/208V (with 120V secondary). It is appropriate for medium-scale distribution to equipment with non-linear loads, such as CNC machines, drives, and office/server rooms. It provides stable voltage conditioning for critical loads, helping protect sensitive electronics and improve overall power quality.
The N48D28T7521LS50 is UL Listed, which supports safety compliance and regulatory acceptance across many industrial environments. When planning installation, verify that local electrical codes, company standards, and facility safety policies align with UL certification requirements and the transformer’s vented design for adequate cooling in your specific environment.
Expect improved uptime and voltage stability under non-linear loads, which can reduce equipment failures and maintenance costs. The vented design lowers cooling-related energy use and extends component life. Routine inspections should focus on connections, cooling paths, and insulation condition, with a preventive maintenance cycle aligned to your facility’s electrical preventive maintenance program.