Eaton N48D31B75CU Ventilated Transformer - 75 KVA K13 XFMR
Part Number: N48D31B75CU
Quick Summary
Eaton N48D31B75CU is a nonlinear ventilated transformer for 480-220Y/127 three-phase distribution in industrial power systems. Operators often face heat buildup, harmonic distortion, and rising maintenance costs that erode reliability. Certification details vary by market; verify the exact marks (for example CE or UL) and enclosure IP ratings with Eaton. This transformer delivers efficient harmonic management and improved cooling, supporting scalable distribution with compatible Eaton products and service ecosystems, while enabling better asset lifecycle economics for manufacturing plants, data centers, and heavy industry facilities.
Product Information
Extended Description
N48D31B75CU Eaton: Eaton K-Factor nonlinear ventilated transformer 75 KVA K13 XFMR 3PH 480-220Y/127 80C RISE COPPER
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48D31B75CU
UPC
786680140945
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
1 lb
Certifications
Contact Manufacturer
Type
Ventilated transformer
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48D31B75CU
Feature: K-Factor nonlinear design helps mitigate harmonic currents. Business Impact: Reduces copper losses and improves voltage regulation under nonlinear load, lowering operating costs over time. Application: Suited for facilities with heavy equipment and power electronics, such as CNC shops and data centers. Feature: Ventilated construction with 80C rise capability enhances cooling. Business Impact: Enables higher load tolerance in crowded electrical rooms, reducing thermal derating and extending transformer life. Application: Indoor and semi‑outdoor installations with limited cooling capacity. Feature: 75 KVA, 3‑phase, 480-220Y/127 configuration. Business Impact: Delivers reliable power for mid‑size feeder circuits while maintaining compact footprint; simplifies panel integration and reduces the number of required units. Application: Industrial feeders, machine banks, and automation cabinets. Feature: Copper windings and robust construction. Business Impact: Improves efficiency, resistance to thermal cycling, and long‑term reliability, lowering maintenance costs. Application: Environments with fluctuating loads and harmonic content. Feature: Compatibility with Eaton distribution ecosystem and standard installation practices. Business Impact: Streamlines procurement, spares, and serviceability; simplifies specing in project pipelines. Application: OEMs and integrators aligning with Eaton’s Transformer Flex Center and catalog offerings.
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FAQs
Installation should follow the manufacturer’s guidelines for ventilated transformers: confirm three-phase connections, verify voltage compatibility (480-220Y/127), ensure proper enclosure integrity, and maintain required clearances for cooling. If integrating with Eaton’s Transformer Flex Center, reference the catalog sheets for mounting patterns, enclosure sizing, and recommended interconnection methods to optimize cooling and access for maintenance.
Key specs include a 75 KVA rating, three-phase construction, and a 480-220Y/127 voltage configuration. It is a K-Factor nonlinear design (K13 XFMR) with copper windings and an 80C rise rating. These features support harmonic management, stable voltage regulation under nonlinear load, and robust operation in typical industrial environments.
Yes. The transformer’s K-Factor nonlinear design helps mitigate harmonic currents common in data centers and industrial automation, improving power quality. Its 75 KVA rating supports mid‑size loads, while the ventilated design maintains cooler operation under sustained duty cycles, contributing to higher reliability in critical facilities.
Certification details vary by market. For exact markings and enclosure ratings, contact Eaton. Common considerations include regional CE/UL marks and IP enclosure ratings depending on installation location, along with any site‑specific compliance requirements. Always confirm with the manufacturer before installation to ensure regulatory alignment.
The N48D31B75CU’s copper windings and nonlinear K-Factor design reduce losses under harmonic load, improving efficiency and lowering operating costs. The ventilated cooling reduces thermal cycling and extends component life, potentially lowering maintenance frequency and downtime. Compatibility with Eaton’s distribution ecosystem simplifies spare parts, service, and lifecycle management, delivering a favorable total cost of ownership.