Eaton S20L11S15S64X Encapsulated Transformer - NEMA 4X
Part Number: S20L11S15S64X
Quick Summary
The Eaton S20L11S15S64X encapsulated transformer delivers reliable power isolation for industrial control panels and outdoor-rated applications. In harsh environments, enclosure integrity and moisture resistance drive uptime, and this unit's rugged NEMA 4X housing helps prevent corrosion and ingress. With a 15 kVA rating, 60 Hz operation, single-phase design, and a broad primary and secondary voltage range (240/480 V to 120/240 V), it supports flexible configurations while reducing stocking and install time. Built for power management and distribution in demanding facilities, it integrates with standard panel layouts and Eaton’s ecosystem to streamline procurement, maintenance, and service life, delivering lower total cost of ownership and faster commissioning.
Product Information
Extended Description
S20L11S15S64X Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 4X, 180, 60 Hz, single-phase, 240 V, 480 V, 120/240 V, 2 at -5% FCBN x 4 at -2.5% FCBN, 150 °C rise, 15 KVA, indoor-outdoor
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20L11S15S64X
UPC
786680116445
Product Length/Depth
10.52 in
Product Height
19 in
Product Width
13.38 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
Aluminum
Design
EP
Enclosure
NEMA 4X
Frame
180
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
150 °C rise
Volt ampere rating
15 kVA
Weathershield
Indoor-Outdoor
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton Specification Sheet - S20L11S15S64X
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: General-purpose encapsulated transformer with aluminum coil. Benefit: Lighter weight and corrosion resistance improve field reliability and reduce handling costs. Application: Ideal for control panels and outdoor enclosures where space and weight matter. Feature: NEMA 4X enclosure. Benefit: Tough protection against dust, water, and weather, lowering maintenance and downtime. Application: Outdoor equipment housings and rugged indoor installations in harsh environments. Feature: 15 kVA, 60 Hz, single-phase. Benefit: Sufficient capacity for common control loads, enabling fewer transformers and simplified wiring. Application: Machine controls and distribution in mid-size systems. Feature: Tap changes (2 at -5% FCBN x 4 at -2.5% FCBN). Benefit: Voltage regulation to accommodate supply fluctuations, improving performance of sensitive loads. Application: Facilities with variable utility voltages. Feature: Primary 240/480 V, secondary 120/240 V. Benefit: Flexible voltage interfaces for mixed-generation and equipment needs. Application: Control panels feeding 120/240 V logic and 240/480 V feeders. Feature: 150 °C rise capability. Benefit: Higher thermal tolerance enabling reliable operation in hotter environments. Application: Indoor-outdoor installations where ambient temperatures vary. This combination supports measurable efficiency gains, compliance readiness, and a streamlined procurement path for power management and distribution projects.
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FAQs
Install in a suitable enclosure, leveraging the NEMA 4X protection for outdoor or harsh indoor environments. Connect primary to 240/480 V and secondary to 120/240 V, observe the -5% and -2.5% tap settings for voltage regulation, and follow standard mounting practices for single-phase, 15 kVA units. Confirm clearance for cooling and accessible taps during commissioning.
The transformer provides 15 kVA at 60 Hz in a single-phase configuration with primary voltages of 240 and 480 V and secondary voltages of 120/240 V. It uses an aluminum coil, supports taps of 2 at -5% and 4 at -2.5% FCBN, and features a 150 °C rise, suitable for rugged industrial environments.
Yes. Its NEMA 4X enclosure is designed for indoor-outdoor service, delivering weather resistance and corrosion protection. This makes it well-suited for outdoor equipment, damp or dusty facilities, and installations requiring rugged, reliable power isolation for control circuits.
Certifications are listed as 'Contact Manufacturer' in the catalog data, with a focus on the NEMA 4X rated enclosure and Eaton’s warranty. For formal certification documents, request Eaton’s current compliance pack and datasheets.
Warranty is Eaton Selling Policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. This, combined with a robust enclosure and corrosion-resistant materials, supports lower maintenance costs and longer service life in challenging environments.