Eaton S20L11S07CULS42 Encapsulated Transformer - UL Listed
Part Number: S20L11S07CULS42
Quick Summary
Eaton general purpose encapsulated transformer delivers reliable, compact power for control panels and industrial equipment. Engineers frequently contend with cramped spaces, noise, and exposure to harsh environments; this unit mitigates those challenges with a rugged NEMA 3R enclosure and a low 42 dB sound profile. Key certifications include UL Listed protection, plus enclosure and design features that support indoor-outdoor installation in varied facilities. With a 7.5 kVA rating and 240/480 V primary alongside 120/240 V secondary, it delivers flexible, space-efficient power for critical control circuits and distributed loads. The copper-wound design enhances efficiency and thermal performance, helping you reduce energy waste and maintenance costs.
Product Information
Extended Description
S20L11S07CULS42 Eaton: Eaton General purpose encapsulated transformer, EP, copper, NEMA 3R, 178, 60 Hz, low sound 42 dB, single-phase, 240 V, 480 V, 120/240 V, 2 at -5% FCBN X 4 at -2.5% FCBN, 115 °C rise, 7.5 KVA, indoor-outdoor, 23A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20L11S07CULS42
UPC
786680083174
Product Length/Depth
9.89 in
Product Height
16 in
Product Width
10.38 in
Product Weight
138 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
UL Listed
Catalog Notes
Low sound equal to 42 dB
Coil material
Copper
Design
EP
Enclosure
NEMA 3R
Frame
178
Tap size
2 at -5% FCBN x 4 at -2.5% FCBN
Type
General-Purpose Encapsulated Transformer
Wiring connection
23A
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
7.5 kVA
Modification 1
Low sound 42 dB
Weathershield
Indoor-Outdoor
Copper windings deliver lower resistance and superior thermal performance, reducing I2R losses and keeping operating temperatures stable under peak loads. The result is higher efficiency, cooler panel environments, and longer life for power electronics in crowded control rooms. This reliability translates to fewer unscheduled shutdowns, lower cooling costs, and greater headroom for future capacity in structured DC bus or motor-control applications. With a 7.5 kVA rating, the unit supports mid-range loads common in control panels and small machine tools, enabling compact layouts without sacrificing voltage stability during startup surges. Designers gain flexibility to consolidate circuits, minimize cable runs, and reduce panel depth, while field engineers benefit from consistent performance across varying loads. Dual primary and secondary voltages provide design flexibility for diverse networks, simplifying retrofits into legacy systems. NEMA 3R enclosure with indoor-outdoor capability shields windings from dust and moisture, enabling outdoor siting in sheltered locations and reducing the need for separate weatherproof enclosures. The 42 dB sound level and UL Listed certification support quieter workplaces and verified safety, while the copper construction and rugged protection shorten installation cycles and improve long-term reliability in factory floors and outdoor equipment bays. Compatibility with Eaton catalogs and standard 23A wiring makes field terminations straightforward for technicians familiar with power-distribution components, lowering risk and accelerating commissioning in panel builds.
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FAQs
Install on a level, rigid base in a protected area and provide adequate service access. The NEMA 3R enclosure supports indoor-outdoor use, while copper windings and 23A wiring simplify field connections. Ensure proper ventilation, maintain clearances for maintenance, and account for the 42 dB sound rating when siting near operators or offices.
Key specs include 7.5 kVA, single-phase operation, 240/480 V primary and 120/240 V secondary, 60 Hz, copper windings, and 115 °C rise. UL Listed certification confirms safety compliance, while the 42 dB noise rating supports quieter operation. These factors collectively deliver reliable power, efficient energy use, and predictable performance for control panels and machines.
Yes. Its 7.5 kVA rating and single-phase design are well-suited for mid-range panel boards and machine-tool loads. The 240/480 V primary with 120/240 V secondary supports versatile panel configurations, and the NEMA 3R indoor-outdoor enclosure handles varied environments, enabling compact layouts without sacrificing voltage stability or reliability in industrial automation.
The transformer is UL Listed, indicating compliance with recognized safety standards, and features a NEMA 3R enclosure for indoor-outdoor use. These attributes support regulatory approvals, simplify procurement, and reduce audit risk for facilities deploying control panels and distribution equipment in mixed environments.
Maintenance is generally minimal due to encapsulated construction and copper windings. The one-year warranty (or 18 months from shipment) provides early protection against defects. Expect lower cooling costs, stable efficiency, and reduced downtime, contributing to a favorable total cost of ownership in mid-size power-distribution deployments.