Eaton LY48M28T45CU Marine Transformer - UL Listed
Part Number: LY48M28T45CU
Quick Summary
Eaton Marine duty encapsulated transformer delivers reliable voltage transformation for on-board power distribution. Operators and engineers confront corrosion, moisture ingress, and tight installation spaces that drive maintenance costs and downtime, especially under salt air and vibration. UL Listed protection, a NEMA 3R enclosure, and an indoor-outdoor weathershield design deliver rugged performance in harsh marine environments. With copper windings, a 45 kVA rating, and three-phase 60 Hz operation, it supports compliant, efficient power delivery while simplifying procurement for marine projects. This combination translates to reduced retrofit risk, easier spares management, and predictable performance across varying vessel loads.
Product Information
Extended Description
LY48M28T45CU Eaton: Eaton Marine duty encapsulated transformer, marine duty encapsulated transformer, EPTM, copper, NEMA 3R, 244, 60 Hz, three-phase, 480 V, 208Y/120 V, 2 at +2.5% FCAN, 4 at -2.5% FCBN, 115 °C rise, 45 KVA, indoor-outdoor, 84A45L
Product Name
Eaton Marine duty encapsulated transformer
Catalog Number
LY48M28T45CU
UPC
786680032011
Product Length/Depth
14.66 in
Product Height
28.15 in
Product Width
26.58 in
Product Weight
808 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
Coil material
Copper
Design
EPTM
Enclosure
NEMA 3R
Frame
244
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Type
Marine Duty Encapsulated Transformer
Wiring connection
84A45L
Frequency rating
60 Hz
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
115 °C rise
Volt ampere rating
45 kVA
Weathershield
Indoor-Outdoor
Feature: Copper windings for high conductivity. Business impact: Lower impedance and reduced I²R losses improve overall efficiency under load, delivering steadier voltage to critical equipment. Application: Supports propulsion, navigation, and sensor networks on boats and ships with tighter power budgets. Feature: Marine duty encapsulated design (EPTM) with NEMA 3R enclosure. Business impact: Enhanced protection against moisture, dust, and corrosive seawater, extending service intervals and reducing maintenance costs. Application: Ideal for indoor-outdoor marine electrical rooms and outdoor alternatives in harsh ports. Feature: Tap changer with 2 taps at +2.5% FCAN and 4 taps at -2.5% FCBN. Business impact: Maintains voltage accuracy under load swings, minimizing equipment stress and outages. Application: Critical for precision-control loads and sensitive electronics on vessels. Feature: Three-phase 60 Hz operation, primary 480 V and secondary 208Y/120 V. Business impact: Direct compatibility with common shipboard power architectures, reducing integration time and panel design complexity. Application: Simplifies retrofits and new builds in commercial and military marine markets. Feature: Indoor-Outdoor weathershield and UL Listed certification. Business impact: Combines rugged protection with regulatory confidence, supporting long-term reliability and faster procurement approvals. Application: Suitable for offshore platforms, ferries, and cargo vessels needing compliant power distribution. Feature: 45 kVA rating with copper coil, 14.66 in L, 26.58 in W, 28.15 in H footprint and 808 lb weight. Business impact: Manageable footprint for dense electrical rooms and predictable installation planning; stable thermal performance reduces risk of overheating. Application: Marine electrical panels and space-constrained compartments requiring robust power conversion.
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FAQs
For installation, ensure the transformer is mounted in a compliant indoor-outdoor location with adequate ventilation and access for servicing. The unit uses a NEMA 3R enclosure and supports a 14.66 in length, 26.58 in width, and 28.15 in height footprint. Utilize the 2 at +2.5% FCAN and 4 at -2.5% FCBN tap options to maintain voltage under varying loads.
The LY48M28T45CU is a three-phase transformer rated at 45 kVA with a 480 V primary and 208Y/120 V secondary, operating at 60 Hz. It features copper windings and a 115 °C rise rating, enabling reliable performance in demanding marine environments.
Yes. The unit is designed for marine duty with a NEMA 3R enclosure and indoor-outdoor weathershield, providing protection against moisture, salt air, and vibration. UL Listed certification adds regulatory assurance for offshore and coastal applications.
The LY48M28T45CU carries UL Listed certification and a NEMA 3R enclosure rating, along with an indoor-outdoor weathershield. These features collectively support safe operation in harsh marine environments and simplify compliance during audits.
Copper windings and a rugged encapsulated design reduce electrical losses and heat, enhancing efficiency and longevity. The one-year Eaton warranty (or 18 months from shipment) provides added protection, while the robust enclosure minimizes corrosion risk, lowering total cost of ownership for marine power systems.