Eaton S48D11S05N Encapsulated Transformer - UL Listed
Part Number: S48D11S05N
Quick Summary
Encapsulated transformer provides compact 5 kVA power conversion for 480 V to 120/240 V control panels. Site exposure and installation complexity often drive maintenance costs and downtime. UL Listed certification and a NEMA 3R enclosure support safe, weather-resistant operation in indoor-outdoor environments. The 60 Hz single-phase design and 5 kVA rating deliver reliable power for motors, PLCs, and automation devices. Ideal for power management & distribution ecosystems, it simplifies wiring and serviceability, helping OEMs and integrators meet uptime targets. With 2.5% taps and rugged aluminum windings, it maintains voltage regulation across typical plant loads.
Product Information
Extended Description
S48D11S05N Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 177, 60 Hz, single-phase, 480 V, 120/240 V, 2 at +2.5% FCAN, 2 at -2.5% FCBN, 115 °C rise, 5 KVA, indoor-outdoor, 16A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S48D11S05N
UPC
786680102769
Product Length/Depth
9.89 in
Product Height
16 in
Product Width
10.38 in
Product Weight
109 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
Model N
Coil material
Aluminum
Design
EP
Enclosure
NEMA 3R
Frame
177
Tap size
2 at +2.5% FCAN, 2 at -2.5% FCBN
Type
General-Purpose Encapsulated Transformer
Wiring connection
16A
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
480 V
Secondary Voltage
120/240 V
Temperature rise
115 °C rise
Volt ampere rating
5 kVA
Weathershield
Indoor-Outdoor
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton Specification Sheet - S48D11S05N
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: The S48D11S05N delivers a 5 kVA general-purpose encapsulated transformer with a 480 V primary and 120/240 V secondary, at 60 Hz. This enables reliable voltage conversion for control panels and automation gear, reducing voltage-related faults and improving equipment longevity in plant environments. Application: Ideal for control panels and small industrial feeders where space is at a premium and consistent voltage is critical. Feature → Business Impact → Application: The NEMA 3R enclosure and EP design provide indoor-outdoor suitability, weather resistance, and easier installation in outdoor equipment rooms and hazardous environments. Application: Outdoor substations, weather-exposed controls, and wash-down areas. Feature → Business Impact → Application: Tapable voltage regulation with 2 at +2.5% FCAN and 2 at -2.5% FCBN enables site-specific compensation for load variations, improving performance under fluctuating supply conditions. Application: Facilities with variable power characteristics. Feature → Business Impact → Application: Aluminum coil material reduces resistance and supports durable operation, contributing to lower maintenance needs and better corrosion resistance. Application: Harsh environments and long service intervals. Feature → Business Impact → Application: Wiring connection rated at 16 A simplifies field wiring, panel assembly, and retrofit projects, accelerating commissioning. Application: New builds and upgrades in control cabinets and power distribution panels. Feature → Business Impact → Application: UL Listed certification and a 1-year warranty (or 18 months from shipment) provide compliance confidence and predictable ownership costs. Application: OEM sourcing, maintenance planning, and procurement workflows. Feature → Business Impact → Application: Compact dimensions (9.89 in x 16 in x 10.38 in) and 109 lb weight enable straightforward installation in crowded spaces and retrofit into existing frames. Application: OEM cabinets, machine builds, and retrofit projects.
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FAQs
Installers should mount the unit in a compliant enclosure with adequate ventilation, observe the NEMA 3R rating for outdoor or indoor-outdoor service, and connect wiring within the 16 A rating. Ensure ample clearance for taps and access for maintenance, and verify the 9.89 in x 16 in x 10.38 in footprint fits the panel layout.
The transformer is a single-phase, 5 kVA device with a 480 V primary and 120/240 V secondary, operating at 60 Hz. It provides voltage taps at +2.5% FCAN and -2.5% FCBN for regulation and supports 16 A wiring connections, with aluminum windings and a 115 °C rise rating.
Yes. The unit features an EP design within a NEMA 3R enclosure, rated for indoor-outdoor use. This makes it appropriate for outdoor control panels and exposed industrial environments, aligning with power management & distribution needs while offering weather resistance.
It comes UL Listed for safety compliance. The warranty is Eaton’s policy: one year from installation or eighteen months from shipment, whichever occurs first, providing predictable coverage for maintenance planning.
With a 5 kVA rating, 480 V to 120/240 V output and 16 A wiring capacity, it integrates easily with standard control panels, PLCs, and automation equipment. The aluminum winding and shared frame (177) support robust installation in existing cabinets, reducing footprint and simplifying upgrades in power management and distribution networks.