Eaton LY44M25T30CU Marine duty encapsulated transformer - UL Listed
Part Number: LY44M25T30CU
Quick Summary
Marine duty encapsulated transformer delivers reliable three-phase power for demanding marine electrical systems. On vessels and offshore facilities, engineers face moisture, vibration, and space constraints that threaten uptime; this unit’s encapsulated design guards windings and components against harsh conditions while simplifying maintenance. Key certifications include UL Listed safety verification and a rugged indoor-outdoor readiness that supports versatile installation in marine environments. With a 30 kVA rating and copper windings, the LY44M25T30CU provides stable 440 V to 220 V power conversion, while taps enable voltage compensation to protect sensitive equipment. The result is improved reliability, reduced downtime, and lower lifecycle costs for critical power infrastructure.
Product Information
Extended Description
LY44M25T30CU Eaton: Eaton Marine duty encapsulated transformer, marine duty encapsulated transformer, EPTM, copper, 243, 60 Hz, three-phase, 440 V, 220 V, 2 at +2.5% FCAN 4 at -2.5% FCBN, 115 °C rise, 30 KVA, indoor-outdoor, 85I30
Product Name
Eaton Marine duty encapsulated transformer
Catalog Number
LY44M25T30CU
UPC
786680111358
Product Length/Depth
10.52 in
Product Height
17.38 in
Product Width
20 in
Product Weight
597 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
Frame
243
Tap size
2 at +2.5% FCAN 4 at -2.5% FCBN
Type
Marine Duty Encapsulated Transformer
Wiring connection
85I30
Frequency rating
60 Hz
Phase
Three-phase
Primary voltage
440 V
Secondary Voltage
220 V
Temperature rise
115 °C rise
Volt ampere rating
30 kVA
Weathershield
Indoor-Outdoor
Encapsulated copper-wound construction protects windings from moisture, dust, and mechanical vibration, delivering higher reliability in marine and industrial spaces. This translates to lower maintenance costs and fewer unplanned outages during demanding operations, especially on deck or in engine rooms where harsh conditions are common. The 30 kVA, 60 Hz, three-phase configuration supports essential downstream loads with consistent voltage, reducing equipment stress and extending service life for pumps, controls, and auxiliary systems. Tap settings—2 at +2.5% FCAN and 4 at -2.5% FCBN—enable precise voltage regulation to accommodate long cable runs and fluctuating supply conditions, improving performance of sensitive electronics and minimizing nuisance tripping. Indoor-outdoor Weathershield design and marine-ready encapsulation provide installation flexibility across vessel interiors and exposed locations, without compromising safety or efficiency. Copper windings improve efficiency and thermal performance, while a 115 °C rise rating helps manage heat in constrained spaces. The unit’s dimensions and weight support straightforward mounting and integration into existing Eaton architectures, leveraging familiar 85I30 wiring and frame 243 geometry for compatibility with replacement programs and service parts. Finally, UL Listed certification validates safety compliance, while the warranty offers peace of mind during initial rollout and subsequent operation.
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FAQs
Install the LY44M25T30CU using 85I30 wiring with attention to the 243 frame footprint. Verify mounting location is within the indoor-outdoor Weathershield range and provide adequate ventilation to manage a 115 °C rise. Set the transformer taps to match supply voltage: 2 taps at +2.5% FCAN or 4 taps at -2.5% FCBN as needed. Ensure UL Listed compliance and secure all connections before commissioning.
This unit delivers 30 kVA at 60 Hz in a three-phase configuration with primary voltage 440 V and secondary voltage 220 V. It uses copper windings and supports voltage taps of 2 at +2.5% and 4 at -2.5%. The temperature rise is rated at 115 °C, with a Weathershield indoor-outdoor construction designed for rugged marine service.
Yes. The transformer is designed as a marine duty encapsulated unit with indoor-outdoor Weathershield capabilities. Its encapsulated winding construction provides robust moisture and vibration resistance, making it suitable for engine rooms, decks, and other exposed spaces on ships and offshore platforms.
The transformer is UL Listed, confirming compliance with essential electrical safety standards. Its rugged encapsulated design further supports regulatory and industry expectations for maritime equipment, enabling safer operation in challenging environments.
The unit offers a reliable 30 kVA capacity with voltage regulation via taps, reducing downtime and protecting downstream equipment. Copper windings improve efficiency and heat management, while the 1-year warranty (or 18 months from shipment) provides initial protection. Its robust enclosure eases installation in constrained maritime spaces, delivering long-term lifecycle cost savings.