Eaton S20L11S37CUS64X General-Purpose Transformer - NEMA 4X
Part Number: S20L11S37CUS64X
Quick Summary
The Eaton S20L11S37CUS64X is a general-purpose encapsulated transformer for reliable power distribution in industrial spaces. Facilities struggle with moisture, corrosion, and crowded control panels; this NEMA 4X enclosure reduces maintenance downtime and extends service life. Key ratings include NEMA 4X containment and a 316 stainless steel enclosure, with indoor-outdoor suitability; consult Eaton for CE or SIL documentation. This combination supports faster installation and long-term cost savings for power distribution in automation environments. Engineers appreciate the compact frame and copper coil design for tight spaces and high efficiency. For procurement teams, this encapsulated transformer offers predictable performance, simpler inventory, and clear documentation to streamline project timelines.
Product Information
Extended Description
S20L11S37CUS64X Eaton: Eaton General purpose encapsulated transformer, EP, copper, NEMA 4X, 322, 60 Hz, single-phase, 240 V, 480 V, 120/240 V, 2 at -5% FCBN x 4 at -2.5% FCBN, 115 °C rise, 37.5 KVA, indoor-outdoor
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20L11S37CUS64X
UPC
786680116605
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 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
Copper
Design
EP
Enclosure
NEMA 4X
Frame
322
Tap size
2 at -5% FCBN x 4 at -2.5% 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
115 °C rise
Volt ampere rating
37.5 kVA
Weathershield
Indoor-Outdoor
Copper coil windings deliver lower resistance and improved efficiency under load, reducing copper loss and heat in continuous operation. This directly lowers operating temperature, extending insulation life and reducing cooling requirements in control cabinets. The S20L11S37CUS64X is a dependable choice for process equipment and motor control centers where compact, efficient power transfer is essential. In high-demand automation lines, even small efficiency gains compound to noticeable energy savings over the life of the plant. The EP design paired with a NEMA 4X enclosure and a 316 stainless steel option provides robust protection against moisture, dust, and corrosion. This means safer operation in damp environments such as washdown zones or outdoor enclosures, and less frequent maintenance intervals. The indoor-outdoor suitability reduces the risk of field failures and helps meet facility reliability targets. Voltage flexibility is delivered by two taps at -5% FCBN and four taps at -2.5% FCBN, enabling precise regulation to accommodate supply variations and voltage drop scenarios. This minimizes voltage stress on downstream equipment, reduces nuisance trips, and simplifies start-up testing in new installations. The design supports easy field adjustments without major rewiring, lowering total costs during deployment. With 37.5 kVA, 60 Hz, single-phase operation, and primary options of 240/480 V with a secondary of 120/240 V, this transformer aligns with common industrial power architectures in automation and manufacturing facilities. An 115 °C rise rating indicates solid thermal performance under peak loads, while copper windings and a compact 322-frame design ease installation in tight control panels and machine bays. Compatibility with Eaton catalogs and a straightforward mounting footprint streamline retrofits and new-builds alike, helping engineers meet project timelines and procurement targets. The warranty (Eaton Selling Policy 25-000) and access to Eaton support channels offer predictable service, spare parts availability, and rapid fault resolution, which translates to reduced downtime and improved return on investment.
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FAQs
This unit uses a NEMA 4X sealed enclosure and copper windings, designed for panel mounting in tight spaces. Plan for proper ventilation, secure mounting against vibration, and easy access to taps for field adjustments while ensuring clearance for service.
Yes. The NEMA 4X enclosure and the option for a 316 stainless steel version provide corrosion resistance and weather sealing for indoor-outdoor installations, reducing corrosion risk and maintenance in exposed environments.
Primary voltage options are 240 V or 480 V, secondary voltage is 120/240 V, at 60 Hz single-phase. It is rated at 37.5 kVA with copper windings and tap settings of 2 at -5% and 4 at -2.5% FCBN for voltage regulation.
Eaton offers a warranty per policy 25-000: one year from installation or 18 months from shipment, whichever occurs first. Support includes access to Eaton technical resources and parts, ensuring reliable service and faster fault resolution.
The 322 frame and EP design provide a compact footprint suitable for tight control panels, while the copper windings improve efficiency and heat performance. The robust enclosure reduces maintenance, and the tap settings ease commissioning and ongoing voltage regulation in variable power environments.