Eaton S20K11S10SS4X Transformer - NEMA 4X Indoor-Outdoor
Part Number: S20K11S10SS4X
Quick Summary
Eaton General purpose encapsulated transformer provides reliable power conversion for control panels and industrial equipment. Design teams often struggle to find a compact, rugged unit that withstands moisture, temperature swings and crowded panel layouts. Industry expectations commonly target CE markings, IP-rated enclosures, and SIL-compatible safety integration. With a 10 kVA rating, 240/480 V primary to 120/240 V secondary, and a NEMA 4X indoor-outdoor enclosure, it simplifies installation and reduces lifecycle costs. Aluminum windings, 60 Hz operation, and tapped entries at -10% and -5% FCBN offer flexible configuration for varied plant power architectures.
Product Information
Extended Description
S20K11S10SS4X 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, 10 kva, aluminum windings, 179 9a indoor-outdoor, 60 hz,nema 4x
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20K11S10SS4X
UPC
786680116001
Product Length/Depth
10.52 in
Product Height
19 in
Product Width
13.38 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
179
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
10 kVA
Weathershield
Indoor-Outdoor
Feature: 10 kVA single-phase transformer with 240/480 V primary and 120/240 V secondary. Business impact: Supports stable voltage delivery to control circuits and automation modules, reducing nuisance trips and voltage-related downtime. Application: Ideal for control panels and machine interfaces in automation environments. Feature: NEMA 4X enclosure with indoor-outdoor capability and a corrosion-resistant enclosure option. Business impact: Enables outdoor installations and washdown suitability while minimizing corrosion-related maintenance. Application: Outdoor substations, harsh factory floors, and outdoor control cabinets. Feature: Aluminum windings with a 150 °C rise rating. Business impact: Improves thermal performance and reduces weight, contributing to easier handling and longer service life. Application: High-inrush loads and equipment starting sequences in compact footprints. Feature: Voltage taps at 1 at -10% FCBN x 2 at -5% FCBN. Business impact: Provides on-site voltage regulation to maintain consistent output under load variations, lowering dropout risks. Application: Variably powered automation hardware and instrumentation. Feature: 60 Hz operation and 10 kVA rating with 240 V/480 V primary and 120/240 V secondary. Business impact: Broad compatibility with North American power systems and compatible international voltages, reducing the need for multiple transformers. Application: Plant-wide power distribution in industrial facilities and panel boards.
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FAQs
For reliable integration, ensure the enclosure is mounted in a compliant indoor-outdoor location, resistant to washdown and moisture as indicated by the NEMA 4X rating. Confirm that the panel space accommodates a 10 kVA footprint, with adequate clearance for ventilation and wiring. Use correct tap settings (-10% FCBN and -5% FCBN) during commissioning to maintain voltage stability.
This unit is a single-phase transformer rated at 10 kVA with primary voltages of 240 V and 480 V and secondary voltages of 120/240 V. It operates at 60 Hz and features aluminum windings with a temperature rise of 150 °C. Voltage taps are 1 at -10% FCBN and 2 at -5% FCBN for on-site regulation.
Yes. The S20K11S10SS4X is designed for indoor-outdoor use and ships with a NEMA 4X enclosure. This protection level resists corrosion and moisture, making it suitable for washdown areas, exterior panels, and other harsh environments common in industrial automation and power distribution setups.
Eaton provides a warranty per policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. For certifications and region-specific compliance details (CE, IP, SIL), contact the manufacturer to obtain the proper documentation and field service guidance during installation and maintenance.
Plan for compatibility with 240/480 V primary and 120/240 V secondary circuits, plus appropriate panel mounting hardware. Note the enclosure notes referencing a NEMA 4X Grade 304 stainless steel option and that taps are -10% and -5% FCBN. Ensure downstream devices tolerate the voltage regulation provided by the -10% and -5% taps, and verify panel clearances and wiring conductors meet local codes.