Eaton N48M28B12CULS47 Ventilated Transformer - UL Listed
Part Number: N48M28B12CULS47
Quick Summary
Ventilated transformer enables reliable 112.5 kVA three-phase power distribution in industrial facilities. For engineers facing space constraints, noise, and EMI in switchgear rooms, this unit delivers robust performance with copper windings and an electrostatic shield. UL Listed certification confirms safety compliance for electrical installations and service environments. Operating at 60 Hz with a 480 V primary and a 208Y/120 V secondary, it provides stable voltage with 2 at +2.5% and 4 at -2.5% taps to match your load profile. The frame 918A and a low sound rating of 47 dB support easier integration into retrofit projects, while WeatherShield WS34 compatibility expands outdoor or harsh-environment applications. In practice, this design reduces downtime, simplifies compliance reporting, and lowers total cost of ownership through durable construction and predictable maintenance.
Product Information
Extended Description
N48M28B12CULS47 Eaton: K-Factor nonlinear ventilated transformer K-13, Three-phase, PV: 480V, Taps: 2 at 0.025 FCAN, 4 at -0.025 FCBN, SV: 208Y/120V, 80°C, 112.5 kVA , Cu windings, Elec. Shield, Frame: 918A
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B12CULS47
UPC
786680025402
Product Length/Depth
30.68 in
Product Height
62.18 in
Product Width
31.44 in
Product Weight
1841 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
112.5 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 - N48M28B12CULS47
Feature: K-13 nonlinear K-Factor design improves tolerance to harmonic currents. Business Impact: reduces hotspot formation, increases insulation life, and improves overall reliability in harmonic-rich environments such as motor drives and CNC equipment. Application: ideal for modern factories and machines with variable loads. Feature: Copper windings with electrostatic shielding. Business Impact: higher efficiency, lower loss, and superior EMI performance. Application: control panels, switchgear, and medium-volume power assemblies where EMI containment matters. Feature: 112.5 kVA three-phase rating. Business Impact: supports substantial loads without oversizing, enabling compact distribution layouts and cost-effective installation. Application: plant-wide power distribution, data centers, and OEM equipment integration. Feature: 480 V primary / 208Y/120 V secondary with taps. Business Impact: voltage regulation flexibility reduces panel adjustments and stock requirements. Application: critical loads and mixed-voltage environments where precise tapping aids performance. Feature: Frame 918A, dimensions and weight. Business Impact: straightforward rack mounting and mechanical compatibility for OEM projects and retrofit kits. Application: industrial enclosures, switchgear assemblies, and custom power distribution enclosures. Feature: 47 dB low sound and WeatherShield WS34 option. Business Impact: quieter operation and outdoor-ready installation possibilities, lowering acoustic concerns and environmental protection costs. Application: facilities with strict noise budgets and outdoor or challenging climates. Feature: UL Listed certification. Business Impact: verifies safety compliance for electrical installations, simplifying procurement and commissioning. Application: any compliant industrial deployment requiring vetted safety credentials.
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FAQs
The N48M28B12CULS47 uses a standard 918A frame and weighs about 1841 lb, with dimensions of 30.68 in (depth) by 62.18 in (height) by 31.44 in (width). Plan for adequate clearance for cooling, access to taps, and connection assemblies. The unit’s low 47 dB sound level and WeatherShield WS34 option support installation in noise-sensitive or outdoor environments.
This transformer delivers 112.5 kVA in a three-phase configuration with a 480 V primary and 208Y/120 V secondary. It includes two +2.5% taps and four -2.5% taps to fine-tune output, operates at 60 Hz, and uses copper windings with an electrostatic shield for EMI suppression and reliability.
Yes. The unit’s 918A frame size, copper windings, electrostatic shielding, and low noise profile make it well-suited for integration into switchgear assemblies and OEM power distribution enclosures. The robust cooling and 80 °C rise rating help maintain performance in demanding industrial environments.
The N48M28B12CULS47 is UL Listed, providing an explicit safety certification for electrical installations. This helps streamline procurement and commissioning processes by confirming adherence to recognized safety standards used in industrial facilities.
The product carries Eaton’s warranty policy: one year from installation or eighteen months from shipment, whichever occurs first. Regular maintenance should focus on cooling system integrity, connection torque checks, and insulation condition, with attention to the ventilated design and shielded windings to preserve efficiency and reliability.