Eaton T48M11S07CUNV Transformer - DS-3
Part Number: T48M11S07CUNV
Quick Summary
Eaton T48M11S07CUNV is a dry-type transformer for reliable distribution in industrial and commercial facilities. Engineers often struggle with heat buildup, limited mounting space, and maintenance overhead in compact control panels. This DS-3 design offers a 150 C rise and copper windings, with certifications listed as 'Contact Manufacturer'—coordinate with Eaton to confirm CE/UL approvals. With a 7.5 kVA rating and a 480 V primary to 120/240 V secondary, the unit delivers efficient, space-saving power for automation, motor control, and control cabinets.
Product Information
Extended Description
T48M11S07CUNV 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, 7.5 kVA, Cu windings, Frame: 817N
Product Name
Eaton Totally enclosed non-ventilated transformer
Catalog Number
T48M11S07CUNV
UPC
786680080937
Product Length/Depth
19.5 in
Product Height
37.53 in
Product Width
22.59 in
Product Weight
349 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
Contact Manufacturer
Catalog Notes
Totally enclosed non-ventilated DS-3 or DT-3
Coil material
Copper
Design
DS-3
Frame
817N
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Type
Dry Type Distribution Transformer
Frequency rating
60 Hz
Kva Rating
7.5 kVA
Phase
Single-phase
Primary voltage
480 V
Secondary Voltage
120/240 V
Temperature rise
150 °C rise
The 7.5 kVA single-phase configuration supports robust power delivery for control panels and automation equipment, reducing voltage drop and ensuring reliable operation in machinery and process lines. Copper windings provide superior conductivity and heat tolerance, improving overall efficiency and long-term performance in high-load applications. The totally enclosed non-ventilated DS-3 design protects windings from dust, moisture, and incidental contact, enabling installation in restricted enclosures and harsh factory environments with minimal maintenance. Primary voltage taps at +2.5% and -2.5% enable voltage regulation to compensate for supply fluctuations, safeguarding sensitive controls and reducing nuisance tripping in factories with variable power quality. The compact frame 817N, combined with dimensions of 19.5 in depth, 22.59 in width, and 37.53 in height, supports straightforward mounting in standard electrical rooms and equipment cabinets, helping to minimize footprint while preserving serviceability. The 150 C rise rating provides a safety margin for ambient temperatures often present in industrial settings, promoting consistent performance under peak loads and extended life for copper windings in mission-critical panels. This transformer design aligns with DS-3 distribution requirements and offers predictable maintenance needs and lifecycle costs, making it suitable for panel builders and OEMs seeking reliable power isolation in automation systems.
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FAQs
For installation, ensure adequate space in a standard electrical room or equipment cabinet given the 19.5 in depth and 37.53 in height. The totally enclosed non-ventilated DS-3 design minimizes dust ingress and reduces maintenance. Verify clearance for the primary and secondary terminations and ensure proper mounting to support a 349 lb weight. Consider ambient temperature conditions to avoid overheating and ensure safe service accessibility.
This transformer is a 7.5 kVA, single-phase device with a 480 V primary and 120/240 V secondary. It uses copper windings and supports 60 Hz operation. The unit is suited for control panels and automation cabinets requiring isolated, stable power with minimal voltage drop. The +2.5% and -2.5% taps provide voltage regulation to accommodate supply fluctuations common in industrial facilities.
Yes, the transformer offers taps at 2 at +2.5% FCAN and 4 at -2.5% FCBN. These taps allow minor primary voltage adjustments to compensate for line drops or upswings, helping maintain consistent secondary voltage. Installers should plan for accessible tap connections during commissioning and include proper labeling for maintenance and future troubleshooting.
Certifications are listed as Contact Manufacturer for this Eaton unit. To meet regulatory requirements, confirm CE, UL, or other region-specific approvals with Eaton prior to deployment. This is especially important for equipment intended for global markets or locations with strict electrical safety standards. DS-3 design conformance should also be verified against site standards.
The DS-3 dry-type design minimizes moisture-related concerns and reduces cooling requirements, lowering maintenance costs for indoor installations. Copper windings and a sealed enclosure support long life under typical industrial loads, reducing replacement frequency. With a compact footprint and predictable electrical performance, the T48M11S07CUNV offers favorable total cost of ownership for automation projects and OEM integrations.