Eaton S20K11S05SS4X General-Purpose Transformer - NEMA 4X
Part Number: S20K11S05SS4X
Quick Summary
S20K11S05SS4X Eaton general purpose encapsulated transformer is designed to power control panels with reliable single-phase voltage conversion. Engineers often face voltage variability and harsh environments that disrupt automation reliability and increase downtime. The unit features a NEMA 4X stainless steel enclosure for indoor-outdoor corrosion resistance and a 5 kVA rating with aluminum windings, delivering robust performance in demanding sites. Its compact footprint and flexible tap options simplify installation in space-limited panels while maintaining stable voltage. From factory floors to process controls, this transformer supports consistent power delivery, helping you meet uptime targets and regulatory expectations while reducing maintenance costs.
Product Information
Extended Description
S20K11S05SS4X Eaton: Eaton, general purpose encapsulated transformer, ep, single-phase, 240 x 480v 1 at -10% fcbn x 2 at -5% fcbn 120/240v 150°c 5 kva aluminum windings 177 9a indoor-outdoor 60 hz nema 4x
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20K11S05SS4X
UPC
786680115981
Product Length/Depth
9.89 in
Product Height
16 in
Product Width
10.38 in
Product Weight
0.001 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
NEMA 4X Grade 304 stainless steel enclosure.
Coil material
Aluminum
Design
EP
Enclosure
NEMA 4X
Frame
177
Tap size
1 at -10% FCBN x 2 at -5% FCBN
Type
General-purpose encapsulated transformer
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
240 V, 480 V
Secondary Voltage
120/240 V
Temperature rise
150 °C rise
Volt ampere rating
5 kVA
Weathershield
Indoor-Outdoor
Feature: General-purpose EP encapsulated design with aluminum windings provides rugged protection, lightweight handling, and improved heat dissipation. Business Impact: Lower installation effort, reduced field maintenance, and enhanced durability in demanding environments. Application: Control panels in factories, automation cabinets, and outdoor equipment enclosures. Feature: NEMA 4X stainless steel enclosure rated for indoor-outdoor use with corrosion resistance. Business Impact: Longer service life, fewer enclosure-related failures, and simplified compliance for harsh environments. Application: Outdoor installations, washdown areas, and chemical processing facilities. Feature: Tap changes rated 1 at -10% FCBN x 2 at -5% FCBN offer voltage flexibility. Business Impact: Better voltage regulation across variable supply conditions, protecting downstream equipment and improving performance. Application: Short feeder runs, remote installations, and facilities with voltage fluctuation. Feature: 5 kVA power rating with 60 Hz single-phase operation; primary 240/480 V and secondary 120/240 V. Business Impact: Standardized power distribution for automation panels, reducing the need for multiple transformers and inventory. Application: Machine tools, conveyors, pumps, and process controls. Feature: Indoor-Outdoor readiness with a footprint measuring 9.89 in L x 10.38 in W x 16 in H and a 177 frame. Business Impact: Space-efficient integration in compact control rooms and rugged environments, enabling easier retrofits and upgrades. Application: New builds and retrofit projects in manufacturing facilities. Feature: Eaton warranty and support policy provides a clear service window for installation and maintenance. Business Impact: Improved total cost of ownership and predictable support. Application: Projects requiring defined warranty terms and post-install service.
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FAQs
The transformer provides dual primary voltages 240 V and 480 V and steps down to 120/240 V on the secondary in a single-phase configuration, supporting common industrial control applications while maintaining regulation across loads.
It uses an NEMA 4X stainless steel enclosure designed for indoor-outdoor service, offering rain, dust, and corrosion resistance suitable for harsh environments and washdown areas.
Tap changes indicate selectable voltage outputs to compensate for supply variation. The unit provides 1 tap at -10% and 2 taps at -5%, enabling better voltage regulation for downstream equipment without additional components.
Warranty is defined by Eaton Selling Policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first, with manufacturer support available for spec and installation questions.
Ideal for control panels, machine tools, and process automation requiring a rugged 5 kVA, single-phase transformer with reliable voltage regulation. Its durable enclosure and ventilated aluminum windings reduce maintenance costs and downtime, contributing to improved ROI in manufacturing and distribution environments.