Eaton RT20P11F3716CU Transformer - UL Listed Marine Duty
Part Number: RT20P11F3716CU
Quick Summary
Eaton RT20P11F3716CU Transformer is a general-purpose ventilated transformer designed for marine-duty power conversion. Engineers often struggle with reliable voltage regulation and rugged performance in harsh offshore environments. UL Listed and ABS Certified support safety compliance, while DOE 2016 Efficient design helps lower operating costs. With a 37.5 kVA rating and copper windings, it delivers dependable power for critical equipment while easing installation and service. Designed for marine duty, it uses a NEMA 2 enclosure that provides durable indoor protection and mounting versatility. This combination translates into reduced downtime, easier spare parts management, and predictable maintenance cycles for engineering teams.
Product Information
Extended Description
RT20P11F3716CU Eaton: Eaton General purpose ventilated transformer, Marine-duty, DS-3 (1-phase), PV 240 x 480V, Taps: 1 at +5%/2 at -5% x 2 at +2.5%/4 at -2.5%, SV 120/240V, 115°C rise, 37.5 kVA, 16, Copper windings
Product Name
Eaton General purpose ventilated transformer
Catalog Number
RT20P11F3716CU
UPC
786680207044
Product Length/Depth
20.36 in
Product Height
37.59 in
Product Width
22.87 in
Product Weight
450 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
Catalog Notes
DOE 2016 Efficient
Coil material
Copper
Enclosure
NEMA 2
Frame
818
Tap size
1 at +5% FCAN, 2 at -5% FCBN x 2 at 2.5% FCAN, 4 at -2.5% FCBN
Type
Marine Duty Transformer
Frequency rating
60 Hz
Primary voltage
240 x 480 V
Secondary Voltage
120/240 V
Volt ampere rating
37.5 kVA
Weathershield
WS11
Feature: 37.5 kVA rating and copper windings → Business Impact: High-efficiency power transfer reduces copper loss and operating temperatures, lowering energy costs and cooling requirements. Application: Offshore platform machinery and shipboard electrical systems needing reliable step-down/up operations.Feature: Primary 240 x 480 V and Secondary 120/240 V → Business Impact: Flexible bus connections and seamless integration with standard plant and shipboard distributions. Application: Powering mixed loads on rigs and vessels without multiple transformers.Feature: 60 Hz frequency rating → Business Impact: Optimized performance for regional grids and maritime power networks, minimizing harmonics and voltage fluctuations. Application: Onboard auxiliaries, lighting, and control panels with stable supply.Feature: Copper windings → Business Impact: Superior thermal conductivity and durability under continuous duty, reducing maintenance and replacement costs. Application: Environments with high ambient temperatures and variable loads.Feature: Tap settings 1 at +5%, 2 at −5% x 2, and 4 at −2.5% → Business Impact: Fine voltage regulation to accommodate load changes and line impedance, improving equipment uptime. Application: Critical sensors, drives, and PLC-powered systems on ships and offshore facilities.Feature: NEMA 2 enclosure and Marine Duty designation → Business Impact: Enclosure protection for indoor or protected outdoor installations, easing installation approvals and reducing corrosion concerns. Application: Engine rooms, switchgear rooms, and cargo holds with moisture exposure.Feature: DOE 2016 Efficient rating → Business Impact: Meets energy-efficiency standards to reduce standby losses and operating costs over the asset life. Application: Continuous duty transformers in energy-conscious fleets and yards.Feature: Frame 818 and dimensions 20.36 in L × 22.87 in W × 37.59 in H → Business Impact: Manageable footprint for retrofit projects and limited installation space. Application: Retrofit of legacy systems in ships and offshore platforms with minimal structural changes.
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FAQs
Yes. The transformer is designed with a 240 x 480 V primary and 120/240 V secondary, operating at 60 Hz. This configuration supports standard shipboard and offshore electrical distributions, enabling reliable voltage conversion for mixed loads without additional equipment.
The unit provides 1 tap at +5%, 2 taps at −5%, and 4 taps at −2.5% for precise voltage regulation. These options allow engineers to compensate for cable losses, load variations, and voltage drop in marine circuits, improving equipment performance and reducing nuisance tripping.
This transformer is UL Listed and ABS Certified, ensuring compliance with safety and maritime standards. DOE 2016 Efficient labeling further confirms energy-performance compliance, making procurement easier for regulated marine and offshore projects.
With a NEMA 2 enclosure and a rugged marine-duty designation, the RT20P11F3716CU is optimized for indoor installations in engine rooms or protected spaces. Its 37.5 kVA rating and copper windings deliver dependable service with straightforward mounting and wiring, reducing retrofit complexity.
Eaton provides a one-year warranty from installation or eighteen months from shipment, whichever occurs first. Routine checks for insulation integrity, winding temperatures, and connection torque help maximize uptime and extend service life in demanding marine environments.