Eaton S43D11S03X Encapsulated Transformer - UL Listed
Part Number: S43D11S03X
Quick Summary
Eaton General purpose encapsulated transformer reliably steps down 416 V to 120/240 V for industrial control and power distribution. Mismatched voltages and enclosure limitations often lead to downtime, excessive heat, or compliance pitfalls in critical facilities. Key certifications include UL Listed, NEMA 3R enclosure protection, and indoor-outdoor suitability for rugged environments. This compact 3 kVA unit supports reliable voltage conversion while simplifying procurement and installation in power-management systems. Its aluminum windings and epoxy encapsulation deliver durable performance in demanding environments while reducing cooling costs and weight for easier field handling. Engineers appreciate the ability to fine-tune output with taps for +/− voltage, supporting tight process tolerances and consistent equipment performance.
Product Information
Extended Description
S43D11S03X Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 177, 50-60 Hz, single-phase, 416 V, 120/240 V, 2 at +2.5% FCAN, 2 at -2.5% FCBN, 115 °C rise, 3 KVA, indoor-outdoor, 16V
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S43D11S03X
UPC
786680075377
Product Length/Depth
9.89 in
Product Height
16 in
Product Width
10.38 in
Product Weight
115 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
50/60 Hz
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
16V
Frequency rating
50-60 Hz
Phase
Single-phase
Primary voltage
416 V
Secondary Voltage
120/240 V
Temperature rise
115 °C rise
Volt ampere rating
3 kVA
Weathershield
Indoor-Outdoor
Encapsulated design and aluminum windings deliver rugged performance. This encapsulation reduces moisture ingress and vibration, extending service life in harsh environments. Use in outdoor panels or damp factory floors where reliability matters. High kVA rating of 3 kVA with a 416 V primary and 120/240 V secondary enables compact power conversion for multiple loads. The single-phase configuration and 50-60 Hz compatibility align with common industrial power systems, simplifying panel integration and wiring diagrams. Voltage regulation is enhanced by taps: two at +2.5% FCAN and two at -2.5% FCBN. This allows precise secondary voltage during line losses and load changes, reducing equipment misoperation and improving control stability. Weathershield indoor-outdoor capability with a NEMA 3R enclosure, UL Listed certification, and indoor-outdoor suitability support compliant installations across locations. This combination minimizes enclosure modifications and reduces downtime during retrofits. Compact footprint, 9.89 in length, 10.38 in width, and 16 in height with a 115 lb weight make it feasible for retrofit in existing cabinets or curbside installs. Field wiring is simplified by standard wiring connection 16V, while the 177 frame supports common mounting patterns. Warranty and service considerations: Eaton offers a one-year warranty from installation or eighteen months from shipment, whichever comes first, providing risk mitigation for procurement and installation projects.
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FAQs
The S43D11S03X is designed for power distribution and control panel power supplies in industrial environments. It steps 416 V down to 120/240 V in a compact 3 kVA, single-phase package with a NEMA 3R enclosure for indoor-outdoor use. Ideal for OEM equipment, machine controls, and facility substations requiring reliable voltage conversion with robust weather resistance.
The transformer features two taps at +2.5% FCAN and two taps at -2.5% FCBN, allowing you to fine-tune secondary voltage to compensate for line losses or load variations. Plan the wiring to connect loads to the 120/240 V secondary while selecting the appropriate taps to maintain target voltage without overloading conductors.
Yes, the S43D11S03X is UL Listed and designed for rugged service. It uses a NEMA 3R enclosure, enabling indoor-outdoor installation in environments with exposure to moisture or dust, while maintaining ingress protection. This combination supports regulatory compliance and reduces enclosure modification needs during installation.
The unit is a 3 kVA, single-phase transformer with a 416 V primary and 120/240 V secondary, rated for 50-60 Hz. It employs aluminum windings and provides a 115 °C rise rating, enabling reliable operation in moderate to high ambient conditions while meeting typical industrial power requirements.
Install with adequate clearance around the 177 frame and ensure correct mounting to match its 9.89 in x 10.38 in footprint and 16 in height. Weighing 115 lb, plan for proper lifting during installation. The one-year warranty (or 18 months from shipment) covers manufacturing defects, and UL/NEMA 3R specs support ongoing compliance and reduced maintenance surprises.