Eaton MV48M22F30CU Marine Duty Transformer - UL Listed
Part Number: MV48M22F30CU
Quick Summary
Eaton MV48M22F30CU is a marine-duty transformer that provides reliable, stepped voltage conversion for offshore power distribution and on-board electrical systems. In harsh marine environments, downtime and uneven power can drive maintenance costs; this unit is engineered to endure with copper windings and a rugged WS38 weather shield. UL Listed and ABS Certified markings support compliance and safe operation on decks and in machinery spaces, while a NEMA 2 enclosure protects critical components. With a 30 kVA rating and 480 V primary feeding 240/120 V secondary, it delivers dependable power for vessel systems, improving efficiency and supporting scalable power management.
Product Information
Extended Description
MV48M22F30CU 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, 30 kVA, Cu windings, Frame: 912B, uses WS38
Product Name
Eaton General purpose ventilated transformer
Catalog Number
MV48M22F30CU
UPC
786680032264
Product Length/Depth
16.5 in
Product Height
30 in
Product Width
23 in
Product Weight
301 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
30 kVA
Primary voltage
480 V
Secondary Voltage
240 V, 120 V
Weathershield
WS38
Feature: 30 kVA three-phase transformer with 480 V primary and 240/120 V secondary. Business impact: enables reliable power distribution for essential shipboard loads, reducing voltage disturbances and downtime. Application: suitable for offshore platforms, cargo ships, and marine machinery rooms. The result is improved equipment uptime and more predictable maintenance budgeting. Feature: Copper windings. Business impact: higher conductivity and lower heat buildup under load, which translates to better efficiency and longer service life. Application: motors, drives, and control panels on vessels where load profiles vary. The outcome is lower energy losses and reduced cooling requirements. Feature: WS38 Weathershield enclosure with NEMA 2 rating. Business impact: robust environmental protection against dust and moisture, lowering corrosion risk in damp marine environments. Application: outdoor deck installations and wet engine rooms. The benefit is extended service intervals and lower enclosure maintenance. Feature: Tap configuration 2 at +2.5% FCAN and 4 at -2.5% FCBN. Business impact: voltage regulation to compensate for supply variations and long cable runs, improving equipment performance and reducing nuisance tripping. Application: critical loads and sensitive controls where voltage stability matters. The payoff is improved process reliability and fewer voltage-related faults. Feature: Frame 912B with 60 Hz operation. Business impact: proven mounting compatibility and standardized installation with common shipboard electrical rooms. Application: 3-phase distribution panels and transformer rooms aboard vessels. The advantage is faster commissioning and easier spare-part sourcing, minimizing downtime during service events. Feature: 30 kVA rating and 480 V primary feeding 240/120 V secondary. Business impact: supports multiple loads with a unified transformer solution, reducing inventory and footprint. Application: power distribution for onboard lighting, instrumentation, and auxiliary equipment. The result is cost savings through consolidation and simpler procurement.
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FAQs
Plan for a robust mounting surface that can support the 301 lb weight and the 912B frame. Ensure adequate ventilation and clearance for cooling, with protection from moisture using the WS38 Weathershield. Position the transformer in a dedicated electrical room or protected outdoor area compliant with NEMA 2 requirements. Verify space for 480 V input and 240/120 V outputs and access to taps for voltage adjustments.
The unit delivers 30 kVA with a 480 V primary and 240/120 V secondary, three-phase configuration, and copper windings for high efficiency. It features 60 Hz operation and tap adjustments (+2.5% and -2.5%) to accommodate supply variations. These specs support reliable power distribution to critical onboard systems such as lights, controls, and propulsion-related equipment.
MV48M22F30CU is UL Listed and ABS Certified, demonstrating compliance with rigorous safety and marine industry standards. These certifications provide confidence for installation on ships and offshore platforms, helping meet regulatory requirements and easing risk assessments for inland and international vessel operations.
The transformer offers taps at +2.5% FCAN and four at -2.5% FCBN, enabling precise voltage regulation along the distribution path. This reduces risk of motor stalling, equipment nuisance tripping, and control instability caused by voltage drift over long cabling or fluctuating shore power, delivering steadier performance for vital onboard systems.
Copper windings and a robust NEMA 2 enclosure enhance durability and thermal performance, lowering maintenance frequency and failure risks in harsh marine environments. The 30 kVA rating consolidates power needs, reducing spare parts and inventory. Improved reliability translates to lower downtime, better asset utilization, and an attractive total cost of ownership for fleet operations.