Eaton S20L11S37SS4X General-Purpose Transformer - UL Listed

Part Number: S20L11S37SS4X
Manufacturer
Eaton
Part number
S20L11S37SS4X

Quick Summary

Eaton general-purpose encapsulated transformer delivers reliable voltage conversion for control panels and machinery. In demanding industrial environments, space constraints, harsh conditions, and downtime costs challenge system reliability. It is UL Listed, NAFTA compliant, and features a NEMA 4X 304 stainless enclosure for indoor-outdoor use. Designed for floor-mount installations in power management and distribution, it helps simplify panel design and reduce total cost of ownership while supporting scalable automation projects.

Product Information

Extended Description

S20L11S37SS4X Eaton: Eaton General-Purpose Encapsulated Transformer, Single-phase 240 x 480V 2 at -5% FCBN x 4 at -2.5% FCBN 120/240V, 115°C rise, 37.5 kVA Aluminum windings, wiring diagram 248A, Indoor-Outdoor, 60 Hz, NEMA 4X 304SS, FR300A4X
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20L11S37SS4X
UPC
786680116049
Product Length/Depth
16.39 in
Product Height
28.45 in
Product Width
22.45 in
Product Weight
720 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.
Compliances
NAFTA
Certifications
UL Listed
Catalog Notes
NEMA 4X Grade 304 stainless steel enclosure.
Coil material
Aluminum
Enclosure
NEMA 4X
Frame
300A4X
Insulation
180 °C
Mounting
Floor
Tap size
2 at -5% FCBN x 4 at -2.5% FCBN
Type
General-purpose encapsulated transformer
Wiring connection
248A
Frequency rating
60 Hz
Kva Rating
37.50 kVA
kVA
37.5 kVA
Phase
Single-phase
Primary voltage
240 V, 480 V
Secondary Voltage
120/240 V
Sound Level
NEMA ST-20
Temperature rise
115 °C rise
Volt ampere rating
37.5 kVA
Special features
NEMA 4X Enclosure 304SS
Weathershield
Indoor-Outdoor
37.5 kVA single-phase transformer with dual primary voltages of 240 V and 480 V and a 120/240 V secondary reduces the need for multiple devices, cutting procurement time and wiring complexity. This aluminum-wound unit with 180 °C insulation delivers reliable performance under load and supports consistent voltage regulation in critical equipment. Application: control panels and machine subsystems in new builds or retrofit projects. NEMA 4X enclosure with 304 stainless steel construction provides exceptional corrosion and washdown resistance, enabling outdoor and damp environments. Application: outdoor enclosures and harsh factory floors where reliability matters. Aluminum windings and 180 °C insulation improve thermal performance and offer lighter weight for easier handling, extending life under peak loads. Application: high-temperature environments and compact installations. Floor mounting design and a 720 lb weight ensure stable installation with reduced vibration, facilitating retrofits in heavy-duty power distribution cabinets. Application: floor-mounted transformer banks in electrical rooms. Wiring connection 248A and 60 Hz operation enable straightforward wiring diagrams and dependable compliance with standard frequency. Application: factory control panels, industrial equipment, and automation systems. This general-purpose encapsulated transformer for control panels and automation systems supports long-term reliability, better uptime, and lower maintenance costs in demanding industrial settings.

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FAQs

Position the unit floor-mounted in a stable, vibration-minimized area. Ensure adequate clearance for the 28.45 in height, 22.45 in width, and 16.39 in depth. Wire the primary to 240 V or 480 V and the secondary to 120/240 V per the 248A wiring diagram. The enclosure is NEMA 4X and UL Listed, and the transformer weighs about 720 lb, affecting handling and cabling routes.
Rated at 37.5 kVA, the transformer operates at 60 Hz with aluminum windings and a 115 °C rise insulation. It delivers dependable single-phase power conversion for control circuits and equipment loads in typical industrial panels, providing stable voltage during peak demand and reducing voltage drop in long cable runs.
Yes. The unit is NAFTA compliant and UL Listed, with a NEMA 4X enclosure of 304 stainless steel that withstands indoor-outdoor use and washdown environments, making it suitable for harsh factory floors and outdoor installations in many industrial settings.
Eaton provides a warranty policy of one year from installation or eighteen months from shipment, whichever occurs first. Given the corrosion-resistant NEMA 4X enclosure and robust aluminum windings, the unit is designed for long service life with minimal maintenance in demanding environments.
The encapsulated design reduces maintenance needs by sealing critical windings and connections, lowering downtime risk. Its versatility for 240/480 V to 120/240 V conversion, rugged enclosure, and floor-mount suitability streamline installation and spare-part planning, delivering faster commissioning and lower total cost of ownership over the system’s life.