Eaton S20L11S10CULS47 Transformer - UL Listed
Part Number: S20L11S10CULS47
Quick Summary
Eaton S20L11S10CULS47 transformer is a general-purpose encapsulated transformer designed for dependable power distribution in industrial controls and equipment rooms. For engineers facing space constraints, noisy environments, or retrofit challenges, this unit delivers a compact, rugged solution with predictable performance. UL Listed safety certification and a NEMA 3R enclosure enable indoor-outdoor installation, while copper windings and a 60 Hz, single-phase design support reliable operation. With a 10 kVA rating and dual primary voltages of 240/480 V to secondary 120/240 V, it integrates with standard panel boards and minimizes wiring complexity. Choosing this transformer can lower downtime, improve energy efficiency, and simplify procurement in control panels and electrical rooms.
Product Information
Extended Description
S20L11S10CULS47 Eaton: Eaton General purpose encapsulated transformer, EP, copper, NEMA 3R, 179, 60 Hz, low sound 47 dB, single-phase, 240 V, 480 V, 120/240 V, 2 at -5% FCBN X 4 at -2.5% FCBN, 115 °C rise, 10 KVA, indoor-outdoor, 23A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20L11S10CULS47
UPC
786680080821
Product Length/Depth
10.52 in
Product Height
19 in
Product Width
13.38 in
Product Weight
240 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 47 dB
Coil material
Copper
Design
EP
Enclosure
NEMA 3R
Frame
179
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
10 kVA
Modification 1
Low sound 47 dB
Weathershield
Indoor-Outdoor
Copper windings and an encapsulated EP design deliver lower copper losses and robust protection against dust and moisture, improving efficiency and longevity in harsh plant conditions. This translates to reduced energy waste and longer service life in machine controls and distribution panels. NEMA 3R enclosure provides indoor-outdoor installation flexibility, enabling external mounting near equipment or sheltered outdoor areas without enclosure upgrades, reducing wiring runs and saving space in crowded electrical rooms. The 10 kVA single-phase core and coil set with primary 240/480 V and secondary 120/240 V streamline integration with common industrial distribution systems, speeding commissioning and lowering capital expenditure. A low sound level of 47 dB and a 115 °C rise support reliable operation in noise-sensitive environments and hot installations, minimizing acoustic concerns and enhancing safety in restricted spaces. Tap size of 2 at -5% FCBN x 4 at -2.5% FCBN and a 23A wiring connection offer voltage regulation and straightforward installation, helping to compensate for supply variations while maintaining load stability. At 240 lb with compact dimensions (10.52 in L, 13.38 in W, 19 in H), the unit provides a robust, durable footprint suitable for retrofit projects without sacrificing structural integrity.
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FAQs
Install the transformer in a suitably rated panel with clearance for 19 inches height and 13.38 inches width. Connect the primary to the 240/480 V supply and the secondary to loads at 120/240 V. Ensure the 23A wiring connection is used and voltage taps are set to the -5% and -2.5% FCBN positions as required by site voltage conditions. Reliability improves due to copper windings and a robust NEMA 3R enclosure.
Verify a 10 kVA rating, 60 Hz frequency, single-phase operation, primary voltages of 240 V and 480 V, secondary voltages of 120/240 V, copper winding construction, and an indoor-outdoor NEMA 3R enclosure. The unit also features a 115 °C rise, a low noise level of 47 dB, and a tap changer arrangement of 2 at -5% and 4 at -2.5% FCBN to accommodate supply variability.
Yes. The transformer is designed with a NEMA 3R enclosure that supports indoor-outdoor installations, providing weather resistance and factory-level protection. This makes it suitable for outdoor panels, equipment rooms adjacent to processing lines, and locations where weather exposure would otherwise require additional enclosure upgrades, reducing installation time and long-term maintenance costs.
The unit carries Eaton's standard warranty policy, with coverage lasting one year from installation or eighteen months from shipment, whichever occurs first. Routine maintenance includes periodic insulation checks and verifying tap settings during voltage fluctuations. The copper windings and encapsulated design reduce maintenance needs and improve long-term reliability in demanding environments.
ROI comes from improved reliability, reduced downtime, and compatibility with standard 240/480 V to 120/240 V power distribution in control panels. Copper windings deliver better efficiency than aluminum, and the NEMA 3R enclosure lowers outdoor exposure risks. The 10 kVA rating supports a wide range of loads, enabling scalable upgrades without frequent replacements or custom configurations.