Eaton S20L11E10CU General-Purpose Transformer - UL Listed
Part Number: S20L11E10CU
Quick Summary
The Eaton S20L11E10CU is a general-purpose encapsulated transformer designed for robust power isolation and voltage conversion in industrial control panels. Engineers often struggle with finding a compact, reliable unit that performs reliably in mixed indoor-outdoor environments without complicating wiring or expanding footprint. This UL Listed transformer features a NEMA 3R enclosure, copper windings, and an electrostatic shield to meet safety and EMI requirements in demanding settings. With a 10 kVA rating and a 240/480 V primary paired with 120/240 V secondary, it delivers flexible, code-compliant power for motors, controls, and instrumentation, while 60 Hz operation keeps it compatible with standard control systems. Designed for ease of installation and servicing, it supports standard 179 frame and voltage-tap adjustments for fast integration.
Product Information
Extended Description
S20L11E10CU Eaton: Eaton, general purpose encapsulated transformer, ep, single-phase, pv: 240 x 480v, taps: 2 at -5% fcbn x 4 at -2.5% fcbn, sv: 120/240v, 115°c, 10 kva, cu windings, elec. shield, frame: 179, indoor-outdoor
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20L11E10CU
UPC
786680053641
Product Length/Depth
10.52 in
Product Height
19 in
Product Width
13.38 in
Product Weight
209 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
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
526A
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
Special features
Electrostatically shielded
Weathershield
Indoor-Outdoor
Feature: Encapsulated EP design with copper windings → Business Impact: Enhanced reliability and moisture resistance in harsh environments → Application: Control panels and switchgear in factories and outdoor-adjacent installations. Feature: Electrostatic shield → Business Impact: Reduced EMI and improved electrical safety, aiding regulatory compliance → Application: Sensitive automation equipment and PLC racks. Feature: 10 kVA rating with 240/480 V primary and 120/240 V secondary → Business Impact: Flexible voltage conversion and scalable power distribution for motors and controls → Application: Machine centers, packaging lines, and process controls. Feature: 60 Hz single-phase operation with 2-tap options (−5% and −2.5% FCBN) → Business Impact: Site-tuned voltage accuracy and compatibility with standard utility supplies → Application: Retrofit projects and new panel builds without extensive rewiring. Feature: NEMA 3R enclosure and Weathershield capable (Indoor-Outdoor) → Business Impact: Weather-ready performance and simplified outdoor installations → Application: Indoor-outdoor power distribution and panel installations across manufacturing and facilities. Feature: 179 frame, copper windings, and UL Listed certification → Business Impact: Proven industry compliance and durable construction reduce maintenance costs and downtime → Application: Industrial automation, packaging, and process industries where reliability matters. Feature: Compact footprint relative to kVA rating → Business Impact: Space savings in crowded control rooms and upgraded facilities → Application: Retrofit of legacy transformers and new line equipment integrations. Feature: Warranty and service terms (1 year from installation or 18 months from shipment) → Business Impact: Clear ownership and support horizon, lowering lifecycle risk → Application: Procurement planning and service-level commitments for plant operations.
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FAQs
Install the S20L11E10CU in a compliant enclosure (NEMA 3R) suitable for indoor-outdoor use. Ensure proper mounting to the frame 179 and respect the 10 kVA rating for load calculations. The unit includes voltage-tap options and copper windings, which simplify site adjustments during commissioning.
Key specs include a 10 kVA VA rating, single-phase operation, primary voltages of 240 V and 480 V, secondary voltages of 120/240 V, and a frequency rating of 60 Hz. Taps are available at −5% and −2.5% FCBN, with copper windings and an electrostatic shield for EMI control.
Yes. Its NEMA 3R enclosure, indoor-outdoor capability, copper windings, and electrostatic shield make it well-suited for rugged control panel applications in manufacturing environments, with EMI reduction and robust mechanical protection.
The transformer is UL Listed, signaling compliance with recognized safety standards. Combined with its rugged enclosure and shield, it helps satisfy common regulatory and EMI/EMC requirements for industrial automation installations.
Eaton provides a one-year warranty from installation or 18 months from shipment, whichever comes first. Routine maintenance focuses on electrical connections, dust control, and periodic insulation checks to maximize uptime and extend service life.