Eaton S20N11P51SS4X General Purpose Transformer - UL Listed
Part Number: S20N11P51SS4X
Quick Summary
The Eaton S20N11P51SS4X encapsulated transformer provides reliable control power for panels and machines. This compact, wall-mount unit helps overcome space constraints and wiring complexities in crowded control panels. It is UL Listed and housed in a NEMA 4X, 304 stainless steel enclosure designed for indoor-outdoor use, with copper windings and a 0.5 kVA rating. By combining durability with straightforward install, it reduces maintenance cycles and downtime. For engineers and procurement teams, this transformer delivers consistent voltage conversion from 240/480 V to 120/240 V, enabling safer, more efficient control circuits and extended equipment life.
Product Information
Extended Description
S20N11P51SS4X Eaton: Eaton General purpose encapsulated transformer, EP, copper, NEMA 4X, 57P4X, 60 Hz, 180C, 0.50 kVA, 0.5 kVA, wall mount, single-phase, 240 V, 480 V, 120/240 V, NEMA ST-20, None, 115 °C rise, 0.5 KVA, indoor-outdoor, 3A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20N11P51SS4X
UPC
786680115929
Product Length/Depth
6.6 in
Product Height
6.58 in
Product Width
4.75 in
Product Weight
14 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.
Compliances
Not Applicable
Certifications
UL Listed
Catalog Notes
NEMA 4X Grade 304 stainless steel enclosure.
Coil material
Copper
Design
EP
Enclosure
NEMA 4X
Frame
57P4X
Insulation
180 °C
Mounting
Wall Mount
Tap size
None
Type
General-purpose encapsulated transformer
Wiring connection
3A
Frequency rating
60 Hz
Kva Rating
0.50 kVA
kVA
0.5 kVA
Phase
Single-phase
Primary voltage
240 V, 480 V
Secondary Voltage
120/240 V
Sound Level
NEMA ST-20
Temperature rise
115 °C rise
Volt ampere rating
0.5 kVA
Special features
304SS NEMA 4X Enclosure
Weathershield
Indoor-Outdoor
Feature 0.5 kVA, single-phase, 60 Hz design enables a compact yet capable power source for control circuits. Business Impact The small footprint supports tight panel layouts while delivering dependable voltage conversion, reducing enclosure depth and wiring complexity. Application Suitable for machine controls and panel boards where space is at a premium and a predictable 120/240 V secondary is required. Feature Copper windings with 180 °C insulation and a 115 °C rise rating provide high electrical efficiency and robust thermal margins. Business Impact Improved efficiency and reduced heat buildup translate to longer component life and lower cooling costs in harsh environments. Application Best for cabinets and equipment rooms where continuous duty and stable voltages are critical. Feature NEMA 4X enclosure in 304 stainless steel and indoor-outdoor capability guard against corrosion and weather exposure. Business Impact This enclosure resilience minimizes maintenance intervals, extends service life in harsh plants, and supports outdoors installation. Application Ideal for outdoor panel assemblies, wash-down areas, and exposed industrial environments. Feature Wall-mount form factor with dimensions 6.6 in L × 6.58 in H × 4.75 in W and a weight of 14 lb. Business Impact Simplified installation, fast retrofit, and flexible mounting options lower installation labor and enable accessible wiring. Application Suitable for retrofit projects or new builds where a compact, easy-to-mount transformer is required. Feature UL Listed and ST-20 reference with 0.5 kVA rating offers compliance and predictable performance. Business Impact Ensures regulatory alignment, reduces qualification effort, and provides a known sound reference for industrial spaces. Application Beneficial for quality-controlled environments and maintenance planning in automation systems.
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FAQs
Install the 0.5 kVA, single-phase transformer on a suitable panel wall using the wall-mount features. Connect the primary to 240 V or 480 V supply and the secondary to 120/240 V loads. Ensure the enclosure is sealed per NEMA 4X requirements and observe clearances for ventilation. Verify copper windings and insulation are intact after install.
The unit is 0.5 kVA, single-phase, 60 Hz with primary voltages of 240 V and 480 V and secondary voltages of 120/240 V. It uses copper windings, 180 °C insulation, and has a 115 °C rise rating. The enclosure is NEMA 4X, 304 stainless steel, designed for indoor-outdoor use.
Yes. The S20N11P51SS4X features a NEMA 4X enclosure constructed from 304 stainless steel, rated for indoor-outdoor use. This design provides corrosion resistance and weather protection, making it suitable for exposed industrial environments as well as protected indoor spaces.
The transformer is UL Listed and utilizes a NEMA 4X 304 stainless steel enclosure. It aligns with ST-20 for sound references and is designed for reliable performance in demanding automation environments, providing a clear compliance baseline for panel builders.
Eaton offers a warranty per Selling Policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. This support is complemented by the durable enclosure, copper windings, and robust insulation, delivering a favorable total cost of ownership and predictable maintenance.