Eaton S40N14S51CE Transformer - UL Listed, 0.5 kVA
Part Number: S40N14S51CE
Quick Summary
The Eaton S40N14S51CE general purpose encapsulated transformer is designed to safely power control circuits and automation equipment in rugged industrial environments. It addresses the common challenge of choosing a compact, durable power source that can survive outdoor exposure and variable line voltages. This unit carries UL Listed and CE Marked certifications, plus a NEMA 3R enclosure for indoor-outdoor installation. With a 0.5 kVA rating and aluminum winding, it offers reliable, energy-efficient performance across wide primary voltages and a dual secondary of 1,110/220 V. By standardizing on this transformer, engineers reduce integration risk and simplify spare-part inventory, enabling faster panel builds and lower total cost of ownership.
Product Information
Extended Description
S40N14S51CE Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 67, 60 Hz, single-phase, 190 V, 200 V, 208 V, 220 V, 380 V, 400 V, 416 V, 440 V, 1,110/220 V, NONE, 115 °C rise, 0.5 KVA, indoor-outdoor, 538A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S40N14S51CE
UPC
786680023545
Product Length/Depth
6.52 in
Product Height
13.41 in
Product Width
6.37 in
Product Weight
43 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
CE Marked
Coil material
Aluminum
Design
EP
Enclosure
NEMA 3R
Frame
67
Tap size
None
Type
General-Purpose Encapsulated Transformer
Wiring connection
538A
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
190 V, 200 V, 208 V, 220 V, 380 V, 400 V, 416 V, 440 V
Secondary Voltage
1,110/220 V
Temperature rise
115 °C rise
Volt ampere rating
0.5 kVA
Weathershield
Indoor-Outdoor
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton Specification Sheet - S40N14S51CE
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: Encapsulated, general purpose design with aluminum coil. Business Impact: Reduces moisture ingress risk and weight for easier handling and installation. Application: Ideal for rugged control panels in mixed environments. Feature: Wide primary voltage range (190–440 V) with dual secondary (1,110/220 V). Business Impact: Flexible sourcing and fewer transformers required on-site, lowering stocking complexity and procurement time. Application: Powering assorted automation devices in facilities with variable feeders. Feature: NEMA 3R enclosure with indoor-outdoor capability (Weathershield: Indoor-Outdoor). Business Impact: Weather-resistant performance minimizes downtime and protects critical components. Application: Outdoor panels, substations, and outdoor equipment cabinets. Feature: 0.5 kVA rating and 60 Hz single-phase operation. Business Impact: Sufficient capacity for control circuits while keeping footprint and energy losses low. Application: Panel power supplies, small automation zones, and distributed control locations. Feature: UL Listed and CE Marked with a proper warranty. Business Impact: Compliance assurance and formal support terms reduce risk and improve project timelines. Application: Any regulated industrial installation requiring traceable standards and reliable service. Feature: Dimensions and weight (6.52 in depth, 13.41 in height, 6.37 in width; 43 lb). Business Impact: Predictable space planning and easy retrofit into existing enclosures. Application: Retrofit projects and new builds in restricted installation areas.
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FAQs
The S40N14S51CE uses a NEMA 3R enclosure and is rated for indoor-outdoor use, making it suitable for control panels installed outside or in harsh environments. Its weather-resistant design reduces corrosion risk and minimizes the need for separate protective enclosures, while UL Listed and CE Marked certification provides compliance confidence for industrial facilities.
The transformer supports a wide primary voltage range of 190 V to 440 V and provides a secondary voltage of 1,110/220 V. It is a 0.5 kVA, single-phase unit operating at 60 Hz, suitable for powering low-voltage control circuits and automation devices from varied feeder voltages.
Yes. The S40N14S51CE is UL Listed and CE Marked, fulfilling essential safety and marketplace compliance requirements. This helps streamline procurement and installation in regulated environments while supporting warranty and service commitments through Eaton’s documented policies.
Yes. The unit’s NEMA 3R enclosure design, indoor-outdoor rating, and weather-resistant construction are specifically intended for outdoor control panels and submetering in harsh industrial settings, reducing the need for additional protective housings and simplifying installation planning.
Eaton provides a warranty per Selling Policy 25-000: one year from the date of installation or eighteen months from shipment, whichever occurs first. For reliability, the aluminum winding and encapsulated design also support extended service life in demanding environments, with proper installation and maintenance.