Eaton S20K11S07N General-Purpose Encapsulated Transformer - UL Listed
Part Number: S20K11S07N
Quick Summary
Eaton S20K11S07N is a general purpose encapsulated transformer for safe power isolation in control panels. This design helps minimize downtime and overheating in demanding installations. It carries UL Listed certification and a NEMA 3R enclosure, supporting indoor-outdoor operation with rugged aluminum windings for corrosion resistance. The unit accommodates 240/480 V primary input and delivers 120/240 V secondary power, enabling seamless integration with diverse power distribution setups. By combining space-efficient packaging with proven Eaton compatibility, it reduces installation complexity and provides a reliable, maintainable power transformation solution for modern industrial environments.
Product Information
Extended Description
S20K11S07N Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 178, 60 Hz, single-phase, 240 V, 480 V, 120/240 V, 1 at -10% FCBN X 2 at -5% FCBN, 115 °C rise, 7.5 KVA, indoor-outdoor, 9A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20K11S07N
UPC
786680102295
Product Length/Depth
9.89 in
Product Height
16 in
Product Width
10.38 in
Product Weight
125 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
1 at -10% FCBN x 2 at -5% FCBN
Type
General-Purpose Encapsulated Transformer
Wiring connection
9A
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
Feature → Business Impact → Application: General-purpose encapsulated transformer with aluminum coil and EP design delivers robust, corrosion-resistant performance in a compact footprint, improving long-term reliability and reducing maintenance costs in panel assemblies used across manufacturing lines and process equipment. Feature → Ability to operate with 240 V and 480 V primary inputs and 120/240 V secondary outputs enables flexible wiring schemes, lowering voltage mismatch risk and enabling quick reconfiguration for changing line setups in mixed-use facilities. Feature → NEMA 3R enclosure combined with indoor-outdoor capability provides weather resistance and safe operation in exposed locations, supporting outdoor bâtiments or factory exteriors without compromising safety or performance. Feature → 7.5 kVA VA rating supports substantial load transfer for controls and auxiliary circuits, delivering improved efficiency and reducing the need for additional transformers in space-constrained panels. Feature → Tap settings 1 at -10% and 2 at -5% FCBN offer voltage adaptability to fluctuating supply conditions, minimizing voltage drop and protecting sensitive loads. Feature → 9A wiring connection and precise 178 frame with compact dimensions (9.89 in L × 10.38 in W × 16 in H) enable straightforward mounting and fast installation, reducing commissioning time and field labor costs.
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FAQs
The S20K11S07N is housed in a NEMA 3R enclosure suitable for indoor-outdoor use, offering rugged protection in exposed environments. The unit weighs 125 lb with dimensions of 9.89 in (L) × 10.38 in (W) × 16 in (H), so ensure mounting surface is level and capable of supporting the load. Plan for 60 Hz operation and proper clearance for ventilation and wiring access.
This transformer provides 7.5 kVA with 240/480 V primary voltage and a 120/240 V secondary. It operates at 60 Hz, is single-phase, and uses aluminum coil windings. Tap changers are configured as 1 at -10% and 2 at -5% FCBN, enabling voltage adjustment to accommodate supply variations and maintain load performance.
Yes. The unit features a NEMA 3R enclosure and a weather-resistant build, enabling indoor-outdoor installation. UL Listed certification further confirms compliance for safe operation in diverse environments. Its rugged construction supports outdoor control panels and exterior-mounted power distribution without sacrificing performance.
The transformer is UL Listed, indicating conformity with recognized safety standards. Its NEMA 3R enclosure provides protection for indoor-outdoor service, making it suitable for a wide range of industrial applications. These certifications support regulatory compliance, reliability, and reduced risk in critical power distribution circuits.
The S20K11S07N delivers predictable power conversion with a compact footprint, reducing panel size and labor costs during installation. Its aluminum windings and robust enclosure lower corrosion risk and maintenance needs in harsh environments, while the voltage-tap options minimize energy losses due to supply variations. Over time, this translates to lower downtime and a favorable total cost of ownership.