Eaton S20K11S03S64X Transformer - Indoor-Outdoor NEMA 4X
Part Number: S20K11S03S64X
Quick Summary
Eaton S20K11S03S64X encapsulated transformer provides reliable single-phase power conversion from 240/480 V primary to 120/240 V secondary for industrial control panels. In many facilities, space constraints and exposure to dust, moisture, and washdowns complicate transformer selection. This unit features a NEMA 4X enclosure and Grade 316 stainless steel construction for rugged indoor–outdoor service; certification details are available from Eaton. From a business perspective, the compact footprint and robust protection translate to reduced downtime and smoother maintenance during installations and routine servicing. Designed for power-management reliability, it pairs well with Eaton's broader transformer families for scalable, compliant panel builds.
Product Information
Extended Description
S20K11S03S64X 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 3 kva aluminum windings 176 9a indoor-outdoor 60 hz nema 4x
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20K11S03S64X
UPC
786680116360
Product Length/Depth
8 in
Product Height
14.25 in
Product Width
7.69 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 316 stainless steel enclosure.
Coil material
Aluminum
Design
EP
Enclosure
NEMA 4X
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
3 kVA
Weathershield
Indoor-Outdoor
General-purpose encapsulated design delivers a 3 kVA single-phase power with 240/480 V primary and 120/240 V secondary at 60 Hz. This alignment enables seamless voltage conversion in control panels and equipment rooms, reducing part counts and simplifying procurement. The enclosure uses a NEMA 4X protection level with Grade 316 stainless steel, offering corrosion resistance and washdown compatibility for indoor–outdoor environments, which lowers maintenance costs and extends service life in harsh industrial settings. Aluminum coil material reduces weight and material costs while maintaining solid thermal performance, contributing to easier handling and installation. Tap settings of 1 at -10% FCBN and 2 at -5% FCBN provide voltage-adjustment options to accommodate supply variance and improve regulation at the load. Compact dimensions (8 in length, 14.25 in height, 7.69 in width) and the indoor–outdoor Weathershield enable easier installation in crowded panels, with flexible mounting options, reducing retrofit time and enabling scalable deployments.
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FAQs
Yes. The unit uses a NEMA 4X enclosure with a Grade 316 stainless steel body, designed for rugged indoor-outdoor service and washdown resistance. Mounting options are flexible to fit standard control panel footprints, simplifying retrofit and expansion projects.
The transformer provides 3 kVA, with 240/480 V primary input and 120/240 V secondary output at 60 Hz, single-phase. It supports voltage tap adjustments of 1 at -10% and 2 at -5% FCBN to accommodate supply fluctuations, improving load regulation.
Ideal for control panels, automation cabinets, and equipment rooms that require isolated, reliable power conversion from higher-priority mains to lower-voltage control circuits, especially in environments demanding corrosion resistance and enclosure protection (indoor-outdoor use).
Certifications are listed as required by the manufacturer. For formal UL/CE or other regulatory listings, contact Eaton directly to obtain current certificates and installation guidelines specific to your region and application.
The rugged NEMA 4X enclosure and corrosion-resistant construction reduce annual maintenance requirements and downtime. The compact footprint, lightweight aluminum windings, and rated 3 kVA capacity support scalable deployments with predictable ROI in control-system upgrades.