Eaton RT20P11F25CUEE General purpose transformer - UL Listed
Part Number: RT20P11F25CUEE
Quick Summary
Eaton RT20P11F25CUEE is a general purpose ventilated transformer for marine-duty power distribution. Operators on ships and offshore installations demand reliable voltage conversion in compact footprints. It carries UL Listed and ABS certifications, and it meets NEMA TP-1 efficiency standards to minimize energy losses. The copper windings and rugged NEMA 2 enclosure deliver dependable uptime, while the WS11 weather shield adds outdoor resilience. Designed for straightforward installation and long service life, it supports robust power distribution with predictable performance for marine applications.
Product Information
Extended Description
RT20P11F25CUEE 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, 25 kVA, Copper windings, EE
Product Name
Eaton General purpose ventilated transformer
Catalog Number
RT20P11F25CUEE
UPC
786680043604
Product Length/Depth
20.36 in
Product Height
37.59 in
Product Width
22.89 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
ABS Certified UL Listed
Catalog Notes
NEMA TP-1 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
25 kVA
Weathershield
WS11
Feature → Marine-duty design with copper windings and WS11 weather shield. Business Impact → Durable construction resists corrosion, vibration, and moisture, extending service life and reducing replacement costs. Application → Suitable for deck-level distribution panels and remote equipment on vessels. Feature → 25 kVA power rating at 60 Hz with a 240/480 V primary and 120/240 V secondary. Business Impact → Supports scalable loads with efficient energy transfer and minimized copper losses, improving overall plant efficiency. Application → Ideal for shipboard power distribution and marine electrical systems. Feature → Tap changer with 1 at +5%, 2 at -5%, and 2 at +2.5%, 4 at -2.5%. Business Impact → Enables precise voltage regulation under varying loads and generator output, reducing equipment stress. Application → Voltage stabilization in dynamic maritime networks. Feature → NEMA 2 enclosure and frame 818 with WS11 weather shield. Business Impact → Outdoor and damp-location protection lowers enclosure leakage and maintenance costs. Application → Outdoor machinery spaces and weather-prone areas on vessels and offshore facilities. Feature → NEMA TP-1 efficient catalog note. Business Impact → Meets efficiency standards to minimize losses and heat, supporting regulatory compliance and energy cost reductions. Application → Commercial marine installations and offshore platforms. Warranty and support → One-year from installation or eighteen months from shipment, whichever comes first, providing procurement confidence and predictable maintenance planning.
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FAQs
When installing RT20P11F25CUEE, ensure space for the 450 lb unit and adequate ventilation close to the distribution panel. Use copper conductors suited to the 240/480 V primary and 120/240 V secondary, and respect the NEMA 2 enclosure rating for damp spaces. Verify torque specs on taps and secure within a compliant, vibration-resistant rack to minimize electrical noise and movement.
The transformer provides taps at +5%, −5%, and ±2.5% increments, enabling fine voltage regulation as generator output and ship loads fluctuate. This reduces voltage stress on motors and controls, improves process stability, and lowers energy waste. For maintenance, schedule periodic tap checks to ensure contacts remain clean and within tolerance.
This unit is designed for marine-duty environments, including ships and offshore platforms. With WS11 weather shielding, copper windings, and a rugged NEMA 2 enclosure, it handles outdoor and humid conditions typical of offshore installations. Its 25 kVA rating and 60 Hz compatibility make it versatile for platform distribution panels and vessel support systems alike.
RT20P11F25CUEE carries UL Listed and ABS Certified marks, validating electrical safety and marine-grade suitability. These certifications support regulatory compliance for vessel installations and offshore facilities, simplifying procurement, installation, and maintenance. The NEMA TP-1 efficiency note further confirms energy-performance expectations across operating loads.
The product warranty is one year from installation or eighteen months from shipment, whichever occurs first, reducing early-risk costs. Regular maintenance should focus on tap integrity, enclosure seals, and winding insulation condition. The combination of high reliability, efficient operation, and durable construction yields lower downtime, predictable maintenance cycles, and a favorable total cost of ownership in marine power systems.