Eaton N48M28B49CULS47 Transformer - UL Listed
Part Number: N48M28B49CULS47
Quick Summary
Eaton N48M28B49CULS47 is a K-Factor nonlinear ventilated transformer for industrial power distribution. Engineers often contend with heat buildup, noise, and reliability challenges in high-load electrical rooms. UL Listed safety certification backs field installation, while copper windings and an electrostatic shield enhance longevity and protection. The unit features 150 kVA capacity, 60 Hz operation, and adjustable taps to accommodate voltage variation, supporting flexible integration in modern plants. With a low sound profile and rugged frame, it minimizes disruption in occupied spaces and harsh environments. Designed for data centers, manufacturing lines, and process automation, it helps reduce downtime while enabling scalable expansion.
Product Information
Extended Description
N48M28B49CULS47 Eaton: K-Factor Non Linear Transformer, Ventilated, K-13, Three-phase, PV: 480V, Taps: 2 at +2.5% FCAN, 4 at -2.5% FCBN, SV: 208Y/120V, 80°C, 150 kVA , Cu windings, Elec. Shield, Frame: 918A, uses WS34
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B49CULS47
UPC
786680027376
Product Length/Depth
30.68 in
Product Height
62.18 in
Product Width
31.44 in
Product Weight
2454 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
Catalog Notes
Low sound equal to 47 dB
Coil material
Copper
Type
Ventilated transformer
Design
K-13
Frame
918A
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Kva Rating
150 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
80 °C rise
Modification 1
Low sound 47 dB
Special features
Electrostatically Shielded
Weathershield
WS34
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28B49CULS47
Feature: The K-Factor nonlinear design paired with ventilated cooling delivers a stable thermal profile under harmonic loading. Business Impact: This reduces insulation stress, extends winding life, and lowers maintenance costs in busy automation environments. Application: Suitable for plants with VFDs, drives, and nonlinear loads where power quality and uptime are critical. Feature: 480 V primary and 208Y/120 V secondary configured for modern plant power distribution. Business Impact: Enables direct integration with common MCCs and switchgear, reducing transformer sourcing complexity. Application: New installs and retrofits in manufacturing lines and data centers. Feature: Copper windings and electrostatic shield enhance thermal performance, short-circuit resilience, and EMI protection. Business Impact: Improves reliability in harsh factory floors and protects sensitive equipment. Application: Heavy industrial environments and outdoor installations. Feature: Rugged 918A frame with dimensions 62.18 in height, 31.44 in width, 30.68 in depth and about 2454 lb weight. Business Impact: Predictable footprint simplifies layout planning, mounting hardware selection, and spare parts stocking. Application: Retrofit projects in space-constrained electrical rooms. Feature: Taps at 2 at +2.5% FCAN and 4 at -2.5% FCBN provide voltage adaptability. Business Impact: Reduces voltage drop, improves load balance, and minimizes nuisance tripping in fluctuating mains. Application: Plants with variable supply or soft-started loads. Feature: WS34 weathershield and low sound 47 dB meet outdoor and noise requirements. Business Impact: Enables outdoor installation without excessive sound or weather exposure concerns, improving workplace comfort and regulatory compliance. Application: Outdoor substations and industrial sites with strict noise and environment controls.
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FAQs
For proper installation, ensure a three-phase footprint that accommodates the 62.18 in height, 31.44 in width, and 30.68 in depth of the 918A frame. Provide adequate ventilation for the ventilated design, plan for copper winding access, and verify compatibility with 480 V primary and 208Y/120 V secondary connections. Account for the 2454 lb weight and clearance for service access.
Key specs include a 150 kVA rating, three-phase operation at 60 Hz, primary voltage of 480 V, secondary voltage of 208Y/120 V, copper windings, and an 80 °C rise. The transformer offers taps at two points: +2.5% FCAN and four at -2.5% FCBN, with low sound noted at 47 dB. Includes electrostatic shielding and WS34 weather shield option.
Yes. Its 150 kVA capacity supports critical loads common in data centers and automation lines. The K-Factor nonlinear design helps manage harmonic loads from drives and rectifiers, while the ventilated cooling maintains thermal stability. The low noise profile minimizes interference in occupied spaces, improving operator comfort and maintaining uptime in production environments.
The transformer is UL Listed, providing safety certification for field installation in the United States. This certification supports compliant wiring, insulation, and overall safety performance. Regional or additional certifications may be pursued per site requirements, but UL listing is the primary certification documented in the product data.
Warranty terms specify one year from installation or eighteen months from shipment, whichever occurs first. This reduces long-term risk and supports maintenance budgeting. Coupled with high reliability, low maintenance needs, and efficient heat management, the N48M28B49CULS47 can offer favorable total cost of ownership and reduced downtime in mission-critical operations.