Eaton S20K11S05CUSS4X Encapsulated Transformer - NEMA 4X
Part Number: S20K11S05CUSS4X
Quick Summary
Eaton S20K11S05CUSS4X is a general purpose encapsulated transformer for reliable 5 kVA power in industrial control panels. In challenging environments, protecting sensitive electronics from dust, moisture, and voltage variability is a common, costly headache. Key protections include a NEMA 4X Grade 304 stainless steel enclosure for indoor-outdoor service and copper windings rated for a 150 °C rise. Together they support automation panels, machine builders, and power-distribution upgrades, delivering reliable voltage conversion with rugged durability and lower maintenance costs.
Product Information
Extended Description
S20K11S05CUSS4X 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 copper windings 177 9a indoor-outdoor 60 hz nema 4x
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20K11S05CUSS4X
UPC
786680116070
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
Copper
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
Rugged enclosure and encapsulation protect critical power components in harsh environments. This reduces environmental ingress, corrosion, and maintenance cycles, extending life in outdoor or washdown areas. Ideal for outdoor-control cabinets and industrial automation panels. Copper windings provide high conductivity and heat tolerance, improving efficiency, minimizing heat buildup, and extending service life under continuous load. This supports machine builders and automation systems requiring reliable power transfer. The 5 kVA single-phase configuration with 240/480 V primary and 120/240 V secondary delivers flexible voltage conversion, reducing the need for multiple transformers and simplifying panel design. Installation is faster and space-saving, especially in compact automation cabinets. Tap settings of 1 at -10% FCBN and 2 at -5% FCBN enable on-site voltage compensation for supply variation. The unit’s compact footprint (9.89 in L × 10.38 in W × 16 in H) and frame 177 ease mounting in standard enclosures, accelerating retrofits. A one-year warranty from installation or 18 months from shipment mitigates lifecycle risk, while the indoor-outdoor Weathershield design supports long-term reliability in varied environments.
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FAQs
Plan for a compact footprint in control cabinets: 9.89 in length, 10.38 in width, and 16 in height with a frame of 177. The NEMA 4X enclosure supports indoor-outdoor mounting, and the unit is designed for easy mounting in standard panels. Verify clearance for heat dissipation and ensure access to tap settings (-10% and -5%) for site adjustments.
This is a 5 kVA, single-phase transformer with 60 Hz frequency. Primary voltage options are 240 V and 480 V, with a secondary of 120/240 V. Copper windings provide high conductivity, and a 150 °C rise rating supports continuous operation in demanding environments.
Yes. The unit features a NEMA 4X enclosure with a Grade 304 stainless steel construction, designed for indoor-outdoor service. It’s well-suited for outdoor panels, washdown areas, and exposed installations where protection from dust, moisture, and corrosion is critical.
The transformer provides taps at 1 at -10% FCBN and 2 at -5% FCBN. These taps allow on-site voltage adjustments to compensate for supply variations and voltage drop over feeders, helping maintain stable secondary voltage to connected equipment without swapping units.
The product carries Eaton’s warranty policy: one year from the date of installation or 18 months from shipment, whichever occurs first. Certifications are specified as 'Contact Manufacturer' for this model, so confirm any regional or product-specific certifications with Eaton during procurement.