Eaton MV48M22F45CU Transformer - Marine Duty, UL Listed
Part Number: MV48M22F45CU
Quick Summary
The Eaton MV48M22F45CU transformer delivers reliable three‑phase power conversion for marine electrical systems up to 45 kVA. In offshore and shipboard environments, it minimizes downtime by tolerating load variability and demanding conditions. UL Listed and ABS Certified, it uses a NEMA 2 enclosure with WS38 weather protection to guard against moisture, dust, and corrosion. It provides a 480 V primary with 240/120 V secondary, and adjustable taps to accommodate small voltage swings in dynamic load scenarios. This rugged, field‑friendly design supports compliant power distribution while simplifying spare‑part planning and maintenance scheduling for fleets and offshore installations.
Product Information
Extended Description
MV48M22F45CU Eaton: Eaton Marine Duty Transformer, Three-phase, PV: 480V, Taps: 2 at +2.5% FCAN, 4 at -2.5% FCBN, SV: 240 delta/120 midtap, 45 kVA, Cu windings, Frame: 912B, uses WS38
Product Name
Eaton General purpose ventilated transformer
Catalog Number
MV48M22F45CU
UPC
786680032271
Product Length/Depth
16.5 in
Product Height
30 in
Product Width
23 in
Product Weight
382 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 ABS Certified
Coil material
Copper
Enclosure
NEMA 2
Frame
912B
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Type
Marine Duty Transformer
Frequency rating
60 Hz
Kva Rating
45 kVA
Primary voltage
480 V
Secondary Voltage
240 V, 120 V
Weathershield
WS38
Feature → Business Impact → Application: 45 kVA three‑phase marine duty transformer delivers essential shipboard power with robust performance for critical circuits, improving uptime and load carrying capacity in harsh marine environments. Application: suitable for vessel and offshore platform electrical systems seeking dependable distribution and predictable response to voltage fluctuations. Feature → Business Impact → Application: 480 V primary to 240/120 V secondary with 60 Hz operation supports standard maritime and industrial loads, reducing integration risk for existing switchgear and panel boards. Application: retrofits or new builds requiring compatible low-voltage distribution and seamless interface with generators and bus systems. Feature → Business Impact → Application: taps at 2 at +2.5% FCAN and 4 at -2.5% FCBN enable precise voltage regulation, lowering risk of under or over‑voltage conditions. Application: critical control panels and motors sensitive to small voltage variations. Feature → Business Impact → Application: copper windings and frame 912B provide durability and thermal efficiency, resulting in lower insulation stress and longer lifecycle. Application: marine duty installations where heat, humidity, and vibration are constants. Feature → Business Impact → Application: NEMA 2 enclosure with WS38 weather shield offers moisture and dust protection, simplifying installation in damp or enclosed spaces. Application: engine rooms, cargo holds, and outdoor equipment bays. Feature → Business Impact → Application: UL Listed and ABS Certified give regulatory compliance assurance and streamlined maintenance planning. Application: procurement, auditing, and service support for maritime customers. Feature → Business Impact → Application: 382 lb weight and compact footprint (16.5 in L, 30 in H, 23 in W) enable feasible installation with standard lifting equipment and chassis alignment. Application: shipboard spaces with limited clearance and specific mounting constraints.
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FAQs
The MV48M22F45CU is a 45 kVA, three‑phase marine duty transformer that converts 480 V primary to 240/120 V secondary, enabling reliable shipboard and offshore power distribution. It supports 60 Hz systems, provides voltage regulation via taps, and meets UL Listed and ABSCertified maritime standards for critical loads.
The transformer features a 480 V primary and a 240/120 V secondary. This setup supports standard shipboard electrical distributions and is compatible with common marine switchgear and panel boards, with potential voltage adjustments via the taps (+/− 2.5%).
Yes. It uses a NEMA 2 enclosure with WS38 weather shield and copper windings designed for marine duty. UL Listed and ABS Certified, it is engineered to withstand moisture, dust, and corrosive exposure typical of shipboard and offshore installations.
Plan for a footprint of approximately 16.5 in by 23 in with a height of 30 in and a weight of about 382 lb. Ensure proper mounting to frame 912B and provide clearance for ventilation, taps access, and routine maintenance, using WS38 protection in damp spaces.
Key documents include Eaton’s Specification Sheet MV48M22F45CU and the Commercial Distribution, Transformer Volume 2 catalog. Both provide detailed wiring diagrams, tap settings, enclosure details, and installation guidance to support procurement and field commissioning.