Eaton S20P11S15CUSS4X General-Purpose Transformer-UL Listed
Part Number: S20P11S15CUSS4X
Quick Summary
Eaton general purpose encapsulated transformer is a reliable single-phase power isolation solution for control panels and machines. When site constraints like limited space or harsh environments challenge installation, this unit’s compact, enclosure-rated design reduces field wiring and maintenance costs. This transformer carries UL Listed certification and is compatible with NEMA 3R/4X style enclosures, offering robust protection in varied environments. In practice, you gain reliability, faster installation, and sourcing flexibility for low-voltage distribution in industrial automation and machinery applications.
Product Information
Extended Description
S20P11S15CUSS4X Eaton: Eaton, general purpose encapsulated transformer, ep, single-phase, pv: 240 x 480v, taps: 1 at +5% fcan, 2 at -5% fcbn x 2 at +2.5% fcan, 4 at -2.5% fcbn, sv: 120/240v, 115°c, 15 kva, cu windings, indoor-outdoor
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20P11S15CUSS4X
UPC
786680073908
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 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
UL Listed
Catalog Notes
Grade 304 stainless steel enclosure with NEMA 4X rating
Coil material
Copper
Design
EP
Enclosure
NEMA 3R
Tap size
1 at +5% FCAN, 2 at -5% FCBN x 2 at +2.5% FCAN, 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
115 °C rise
Volt ampere rating
15 kVA
Weathershield
Indoor-Outdoor
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton Specification Sheet - S20P11S15CUSS4X
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: Copper windings deliver low resistance and high efficiency, reducing heat generation and energy loss in continuous operation, which translates to better overall machine uptime and reduced cooling requirements on the line. Application: Control panels and distribution boards where efficiency and thermal management matter. Feature → Business Impact → Application: 60 Hz single-phase design supports common industrial power systems, simplifying integration with existing infrastructure and minimizing conversion losses. Application: Automation equipment and conveyors requiring dependable step-down power. Feature → Business Impact → Application: Multiple primary taps (+5% FCAN, -5% FCBN, ±2.5% FCAN/FCBN) provide voltage flexibility, enabling quick adaptation to supply variations without swapping transformers. Application: Machines with fluctuating incoming voltages or multi-voltage control circuits. Feature → Business Impact → Application: Copper windings plus a 115 °C rise rating improve durability and heat resistance, decreasing maintenance cycles and extending service life in demanding environments. Application: Indoor-outdoor installations in manufacturing facilities. Feature → Business Impact → Application: NEMA 3R enclosure with optional Grade 304 stainless steel and 4X rating supports rugged, weather-resistant installations, reducing enclosure retrofits and compliance concerns. Application: Outdoor or wash-down areas and exposed environments. Feature → Business Impact → Application: UL Listed certification provides regulatory confidence for safety compliance, facilitating procurement cycles and audit readiness. Application: Highly regulated or safety-critical control systems.
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FAQs
The S20P11S15CUSS4X is a general-purpose encapsulated transformer rated at 15 kVA, designed for single-phase control panels and automation equipment. It provides voltage conversion from 240/480 V primary to 120/240 V secondary, enabling safe, isolated power for relays, controllers, and sensing circuits in manufacturing lines.
The transformer offers taps at +5% FCAN, -5% FCBN, and ±2.5% FCAN/FCBN, allowing on-site adjustment to compensate for supply voltage variations. This flexibility minimizes voltage drop, protects downstream components, and reduces the need for multiple transformers in variable supply environments.
Yes. It is designed for indoor-outdoor use with enclosure options that support rugged environments. The product notes indicate a Grade 304 stainless steel enclosure in some catalog references and NEMA 3R compatibility, with additional 4X-rated options for enhanced corrosion resistance.
The S20P11S15CUSS4X is UL Listed, which assures compliance with recognized safety standards. This certification simplifies procurement for regulated installations, supports audit readiness, and helps ensure safe operation in control panels and power-distribution setups.
With copper windings, a 115 °C rise rating, and robust enclosure options, the unit offers durable performance with lower heat generation and longer service life. The 60 Hz, 15 kVA rating supports stable operations for common industrial loads, reducing downtime, maintenance costs, and the need for frequent replacements in high-use environments.