Eaton S20K11S07CUSS4X Encapsulated Transformer - NEMA 4X
Part Number: S20K11S07CUSS4X
Quick Summary
The Eaton S20K11S07CUSS4X encapsulated transformer provides general-purpose power conversion for industrial control panels. Engineers often wrestle with compact, weather-exposed devices that complicate installation and maintenance. Although formal certifications are not publicly published, the unit features a rugged NEMA 4X enclosure for indoor-outdoor service and copper windings that deliver reliable performance under demanding conditions. This combination supports flexible deployment in motor drives, panel boards, and equipment racks while meeting the needs of modern power distribution. By integrating a durable enclosure with versatile voltage options, this transformer helps shorten install times and reduce lifecycle costs for medium-duty applications.
Product Information
Extended Description
S20K11S07CUSS4X 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, 7.5 kva, copper windings, 178 , 9a, indoor-outdoor, 60 hz, nema 4x
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20K11S07CUSS4X
UPC
786680116094
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
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
7.5 kVA
Weathershield
Indoor-Outdoor
Encapsulated epoxy (EP) construction protects copper windings from moisture, dust, and contaminants, reducing leak paths and maintenance costs. In practice, this translates to longer intervals between service and a smaller total cost of ownership for distributed loads in harsh environments. Ideal in outdoor control cabinets and damp factory floors, the EP design supports reliable operation with minimal room for corrosion. Copper windings provide high conductivity and efficient heat dissipation, lowering voltage drop under load and improving overall performance. The result is tighter voltage regulation and fewer transformer-related disturbances in PLC power supplies and servo drives. Voltage flexibility includes primary options of 240 V and 480 V with a secondary of 120/240 V, plus a tap changer configuration of 1 at -10% FCBN and 2 at -5% FCBN, enabling site optimization for voltage fluctuations. This flexibility reduces wiring complexity and supports on-site adaptation without a full reconfiguration. The 7.5 kVA rating supports multiple loads in a compact footprint, letting you consolidate power distribution in control panels and small machine rooms while minimizing cabinet real estate. With 60 Hz single-phase operation, installation aligns with standard North American electrical systems and simplifies compatibility. The rugged NEMA 4X enclosure and indoor-outdoor Weathershield design expand installation options into semi-protected outdoor environments, enabling year-round use in factories, warehouses, and outdoor equipment stations. A one-year warranty from installation or 18 months from shipment lowers acquisition risk and provides a reliable baseline for budgeting and procurement.
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FAQs
Plan for a compact footprint with dimensions of 9.89 in L x 10.38 in W x 16 in H. The NEMA 4X enclosure supports indoor to outdoor installations, and copper windings reduce heat buildup under load. Ensure proper clearance for ventilation and accessibility for taps and maintenance.
This unit is a single-phase transformer rated at 7.5 kVA with primary voltages of 240 V or 480 V and a secondary of 120/240 V. It features a tap size of 1 at -10% FCBN x 2 at -5% FCBN to accommodate site voltage variations. Operate at 60 Hz and verify load balance to maintain voltage regulation within spec.
Yes. The enclosure is NEMA 4X rated for indoor-outdoor use, and the Weathershield designation confirms suitability for environments exposed to moisture or dust. This minimizes corrosion risk and supports reliable operation in semi-protected outdoor installations and damp facilities.
The datasets indicate Certifications: Contact Manufacturer, with a robust NEMA 4X enclosure for rugged service. No public listing of SIL or CE is provided in the data, so confirm with Eaton for your region-specific requirements and any additional conformance documentation before approval.
Copper windings and EP encapsulation contribute to high reliability and reduced maintenance. The unit carries a standard one-year warranty from installation or 18 months from shipment, which lowers up-front risk and supports predictable budgeting for spare parts and service in industrial power-distribution applications.