Eaton T48M11S50CUNV Transformer - UL Listed DS-3
Part Number: T48M11S50CUNV
Quick Summary
Eaton T48M11S50CUNV transformer provides dry-type, single‑phase distribution for 480 V to 120/240 V in industrial facilities. Facility teams often battle tight spaces, heat buildup, and the challenge of sourcing reliable, code-compliant components that stay up under demanding loads. This unit carries UL Listed certification and DS-3 design intent, with copper windings and a rugged 820N frame that resist tough plant environments. With a 50 kVA rating and configurable taps, it supports scalable, energy-efficient power delivery across manufacturing lines, data centers, and commercial spaces.
Product Information
Extended Description
T48M11S50CUNV Eaton: General-Purpose Transformer, Ventilated, Dry Type Distribution, DS-3, Single-phase, PV: 480V, Taps: 2 at +2.5% FCAN, 4 at -2.5% FCBN, SV: 120/240V, 150°C, 50 kVA , Cu windings, Frame: 820N
Product Name
Eaton Totally enclosed non-ventilated transformer
Catalog Number
T48M11S50CUNV
UPC
786680094613
Product Length/Depth
23.84 in
Product Height
42.03 in
Product Width
24.22 in
Product Weight
752 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
Catalog Notes
Totally enclosed non-ventilated DS-3 or DT-3
Coil material
Copper
Design
DS-3
Frame
820N
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Type
Dry Type Distribution Transformer
Frequency rating
60 Hz
Kva Rating
50 kVA
Phase
Single-phase
Primary voltage
480 V
Secondary Voltage
120/240 V
Temperature rise
150 °C rise
Feature: Copper windings and a dry-type, totally enclosed non-ventilated DS-3 enclosure. Business Impact: improves thermal performance, reduces maintenance needs, and limits dust ingress in indoor environments. Application: ideal for factory panels and commercial rooms where reliability and cleanliness matter. Feature: 50 kVA, single-phase design. Business Impact: compact power-density that can feed critical loads without oversized gear, lowering total cost of ownership. Application: machine tools, panel boards, and light-to-moderate industrial distributions. Feature: Primary 480 V and secondary 120/240 V with taps at +2.5% and -2.5%. Business Impact: voltage regulation to accommodate supply swings and, if needed, small on-site adjustments for sensitive equipment. Application: sites with variable utility voltage or tight tolerance loads. Feature: 150 °C rise rating and copper windings. Business Impact: robust thermal performance, enhanced efficiency, and longer service intervals under heavy-duty use. Application: harsh manufacturing environments and elevated ambient temperatures. Feature: UL Listed certification and DS-3 catalog notes. Business Impact: simplified compliance, smoother procurement, and dependable performance in regulated settings. Application: facilities requiring recognized safety standards and documented configurations. Feature: Rugged 820N frame and 752 lb weight with a footprint of 23.84 in × 24.22 in × 42.03 in. Business Impact: sturdy, space-conscious installation with predictable mounting and anchoring requirements. Application: indoor plant rooms, electrical closets, and retrofit projects with limited space.
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FAQs
Plan a panel with adequate footprint and access for service. The transformer weighs 752 lb, so use proper lifting, floor mounting, and secure anchoring. The DS-3 enclosure minimizes dust ingress and requires appropriate clearance for wiring and taps. Ensure 480 V primary and 120/240 V secondary terminations are correctly sized and protected per local codes.
Key specs include 50 kVA, 60 Hz, single-phase, primary 480 V, secondary 120/240 V, copper windings, and a temperature rise of 150 °C. Tap settings are 2 taps at +2.5% FCAN and 4 taps at -2.5% FCBN, enabling fine voltage regulation to match distribution loads and supply fluctuations.
Yes. With a 50 kVA rating, 480 V to 120/240 V outputs, and a rugged DS-3 enclosure, it suits machine feeders, control panels, and mid-size automation racks. The copper windings and solid frame improve reliability under continuous operation, while the adjustable taps help maintain stable voltages for sensitive equipment on the line.
The T48M11S50CUNV carries UL Listed certification, confirming safety and performance for industrial environments. It is specified for DS-3 or DT-3 dry-type distribution configurations, aligning with Eaton catalog guidelines and facilitating compliance within regulated facilities.
Warranty is Eaton Selling Policy 25-000, offering one year from installation or eighteen months from shipment, whichever comes first. Maintenance is typically low due to the dry-type, enclosed design, but plan routine inspections of connections, check for overheating signs, and verify tap settings remain correctly configured for consistent performance.