Eaton S20N11S07N General-Purpose Transformer UL Listed
Part Number: S20N11S07N
Quick Summary
The Eaton S20N11S07N general-purpose transformer provides reliable step-down power for control panels and equipment rooms. Facilities often struggle with space constraints, rugged environments, and maintaining UL-listed safety across dynamic loads. Certified UL Listed and housed in a NEMA 3R enclosure with indoor-outdoor capability helps ensure dependable operation in demanding facilities. With a 7.5 kVA rating and aluminum windings, this encapsulated transformer supports efficient power distribution while reducing maintenance costs and downtime. Its 240/480 V primary and 120/240 V secondary configuration covers a wide range of industrial equipment, retrofits, and automation projects.
Product Information
Extended Description
S20N11S07N Eaton: Eaton, general purpose encapsulated transformer, ep, single-phase, pv: 240 x 480v, taps: none, sv: 120/240v, 115°c, 7.5 kva, al windings, frame: 178, indoor-outdoor.
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20N11S07N
UPC
786680102981
Product Length/Depth
9.89 in
Product Height
16 in
Product Width
10.38 in
Product Weight
124 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
Model N
Coil material
Aluminum
Design
EP
Enclosure
NEMA 3R
Frame
178
Tap size
None
Type
General-Purpose Encapsulated Transformer
Wiring connection
3A
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
7.5 kVA
Weathershield
Indoor-Outdoor
The transformer is a single-phase, general-purpose encapsulated unit rated at 7.5 kVA, with a primary of 240/480 V and secondary of 120/240 V. Aluminum windings reduce weight and improve thermal performance, enabling easier handling and enhanced durability in demanding environments. This feature translates to lower installation costs and extended service life for control panels in manufacturing floors and utility rooms. The compact frame size (178) fits tight panel spaces, while maintaining ample air clearance for safe, reliable operation. The enclosure is a NEMA 3R rating with an indoor-outdoor capability, delivering weather resistance that minimizes field corrosion and maintenance in outdoor equipment configurations. That robustness reduces downtime and service calls for outdoor control cabinets and remote power distributions. UL Listed certification validates safety compliance, giving engineering teams confidence during design reviews and changeovers, and supporting regulatory requirements in regulated industries. The wiring connection is a straightforward 3A layout, accelerating field wiring and testing during commissioning, which shortens project timelines. Weighing about 124 lb with dimensions of approximately 9.89 in depth, 16 in height, and 10.38 in width, the unit offers a stable footprint for retrofits in legacy panels. Temperature rise is rated at 115 °C, and the unit uses aluminum windings and a fixed design that delivers reliable performance under continuous operation. The unit is designed for 60 Hz single-phase operation, making it compatible with common industrial power systems and machine tools, and its 7.5 kVA rating supports distributed loads with confidence across automation tasks.
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FAQs
Installation involves mounting the 7.5 kVA encapsulated transformer within the panel footprint, securing the NEMA 3R enclosure, and making field connections using the 3A wiring configuration. The primary side accepts 240 or 480 V, while the secondary provides 120/240 V. Follow manufacturer torque specs and local electrical codes to ensure a safe, compliant setup and minimize commissioning time.
Yes. The unit is designed for indoor-outdoor use and features a NEMA 3R enclosure with indoor-outdoor suitability and weathershield. This rugged construction protects windings and connections in variable environments, reducing corrosion risk and maintenance needs for outdoor panels, remote substations, or sheltered outdoor equipment.
The S20N11S07N is UL Listed, indicating compliance with recognized safety standards for electrical equipment. It also features a robust ENcapsulated design and a NEMA 3R enclosure suitable for indoor-outdoor installations. While not CE-certified in the provided data, UL Listing and enclosure protection are key factors for regulatory acceptance in many industrial facilities.
This is a single-phase transformer rated 7.5 kVA with 240/480 V primary and 120/240 V secondary at 60 Hz. Typical use cases include powering control panels, machine tools, and distributed loads in automation and power distribution applications, where reliable voltage conversion and compact form factor are crucial for panel layout efficiency.
The product carries Eaton’s warranty policy (25-000) offering one year from installation or 18 months from shipment, whichever comes first. With aluminum windings and a robust NEMA 3R enclosure, maintenance requirements remain low, translating to lower downtime, fewer field repairs, and predictable long-term operating costs for industrial facilities.