Eaton T20P11F05CUNV Transformer - UL Listed DS-3R Enclosure
Part Number: T20P11F05CUNV
Quick Summary
Eaton T20P11F05CUNV transformer provides reliable 5 kVA power conversion for control panels and automation equipment. In busy plant environments, space, heat, and supply dips complicate downtime planning, making robust power delivery essential. UL Listed with a DS-3R enclosure and a NEMA 3R rating, this unit is designed for indoor-outdoor use and harsh environments. With primary voltages of 240/480 V and a secondary of 120/240 V plus voltage taps, it supports voltage tolerance without sacrificing performance. Designed to streamline installation and compliance, it delivers consistent control power while helping engineers meet project timelines and operational budgets.
Product Information
Extended Description
T20P11F05CUNV Eaton: Totally enclosed non-vent. transformer, DS-3E, Single-phase, Prim. voltage: 240 x 480V, Taps: 1 at +5% FCAN, 2 at -5% FCBN x 2 at +2.5% FCAN, 4 at -2.5% FCBN, Sec. voltage: 120/240V, 115°C, 5 kVA, Cu windings, FR815N, 3XA, 60 Hz, NEMA 3R
Product Name
Eaton Totally enclosed non-ventilated transformer
Catalog Number
T20P11F05CUNV
UPC
786680104183
Product Length/Depth
15.82 in
Product Height
30.25 in
Product Width
16.87 in
Product Weight
204 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
DS-3
Enclosure
NEMA 3R
Frame
815N
Tap size
1 at +5% FCAN, 2 at -5% FCBN x 2 at +2.5% FCAN, 4 at -2.5% FCBN
Type
Totally enclosed, non-ventilated transformer
Wiring connection
3XA
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
240 V, 480 V
Secondary Voltage
120/240 V
Temperature rise
115 °C rise
Volt ampere rating
5 kVA
Weathershield
Indoor-Outdoor
Feature DS-3 enclosed design and Weathershield indoor-outdoor capability → Improves weather resistance and reduces maintenance across outdoor and harsh indoor environments; Application ideal for outdoor control panels and industrial cabinets. Feature 5 kVA rating with copper windings → Ensures efficient power transfer, lower losses, and cooler operation under steady loads; Application for PLC power supplies and motor starter sequences. Feature taps at 1 at +5% FCAN, 2 at -5% FCBN, and 2 at +2.5% FCAN with 4 at -2.5% FCBN → Enables on-site voltage adjustments to maintain stable secondary voltage despite supply fluctuations; Application in environments with varying incoming voltages. Feature single-phase 60 Hz operation with primary 240/480 V and secondary 120/240 V → Broad compatibility with common industrial and facility power systems; Application in control cabinets and instrumentation panels. Feature NEMA 3R enclosure and DS-3 design → Provides rugged protection against dust, rain, and corrosion; Application in outdoor enclosures, switchgear rooms, and machine rooms. Feature 3XA wiring and UL listing with a 115°C rise rating → Facilitates compliant installation and reliable thermal performance; Application during panel wiring and new equipment commissioning. Feature compact footprint and weight of 204 lb with dimensions 15.82 in × 16.87 in × 30.25 in → Easier mounting in restricted spaces; Application in compact control panels and space-constrained electrical rooms. These attributes together drive measurable outcomes such as reduced downtime, easier maintenance planning, and improved energy efficiency across automation projects.
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FAQs
Begin with ensuring enclosure clearance for the 15.82 in L, 16.87 in W, and 30.25 in H footprint. Mount the unit on a vibration-free base, connect the 3XA wiring per the schematic, and set the taps to the site voltage range (+5%, -5%, +2.5%, -2.5%). Verify NEMA 3R/DS-3 compatibility and confirm UL Listed compliance before energizing. We recommend space for thermal dissipation and routine inspection to maintain 115°C rise ratings.
The transformer is a 5 kVA, single-phase unit with 240/480 V primary and 120/240 V secondary, rated for 60 Hz. It provides voltage taps: 1 at +5% FCAN, 2 at -5% FCBN, 2 at +2.5% FCAN, and 4 at -2.5% FCBN, allowing on-site voltage adjustments to maintain stable secondary voltage under input variations. Copper windings support efficient power transfer and thermal performance.
Yes. The DS-3 series design with NEMA 3R enclosure and Weathershield Indoor-Outdoor capability is intended for both indoor and outdoor use, providing weather and dust resistance. This makes it suitable for outdoor control panels, machine rooms adjacent to outdoor spaces, and other rugged industrial environments while maintaining UL Listed safety compliance.
The T20P11F05CUNV is UL Listed, featuring a DS-3 enclosure design and NEMA 3R protection. These certifications confirm suitability for indoor-outdoor installations, weather resistance, and compliance with common electrical safety standards in industrial environments.
The 5 kVA, copper-windings transformer delivers reliable power with low losses and a 115°C rise rating, reducing heat-related wear and downtime. Its robust DS-3 enclosure and UL Listing minimize maintenance surprises. With a one-year limited warranty (or 18 months from shipment), long-term operating costs are predictable, supporting total cost of ownership and faster project payback in automation initiatives.