Eaton S03019 General-Purpose Transformer - NEMA3R
Part Number: S03019
Quick Summary
Eaton S03019 General-Purpose Transformer is a rugged single-phase power solution for control panels and industrial equipment. Engineers often struggle with voltage regulation and outdoor reliability in harsh environments. The encapsulated design uses aluminum windings, a NEMA 3R enclosure, and a 115 °C rise to endure demanding installations. Certifications and listings vary by region; consult Eaton for CE or UL listings and regional compliance for industrial power distribution. Its 3 kVA rating supports mid-volume control panels, and the 60 Hz operation with a 4,160 V primary and 120/240 V secondary simplifies panel design and transformer stocking. Integrated taps (-2.5% FCBN) help manage supply fluctuations, reducing nuisance tripping and enabling faster deployment.
Product Information
Extended Description
S03019 Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 177, 60 Hz, single-phase, 4,160 V, 120/240 V, 4 at -2.5% FCBN, 115 °C rise, 3 KVA, 12B
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S03019
UPC
786680103131
Product Length/Depth
9.89 in
Product Height
16 in
Product Width
10.38 in
Product Weight
110 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
Contact Manufacturer
Catalog Notes
Model N
Coil material
Aluminum
Design
EP
Enclosure
NEMA 3R
Frame
177
Tap size
4 at -2.5% FCBN
Type
General-Purpose Encapsulated Transformer
Wiring connection
12B
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
4,160 V
Secondary Voltage
120/240 V
Temperature rise
115 °C rise
Volt ampere rating
3 kVA
Weathershield
0
Feature: Epoxy-encapsulated construction protects windings and eliminates moisture pathways. Business Impact: Fewer field failures, reduced maintenance cycles, and extended transformer life lower total cost of ownership. Application: Ideal for control panels, outdoor switchgear, and harsh factory floors where moisture or vibration could degrade performance. Feature: Aluminum winding material offers corrosion resistance and simpler cooling. Business Impact: Lighter weight eases installation, lowers handling costs, and maintains stable temperatures under peak loads. Application: Suitable for retrofit projects and compact installations where space and heat management matter. Feature: NEMA 3R enclosure delivers outdoor-ready weather protection. Business Impact: Reduces downtime during rain or washdowns and supports reliable operation in damp environments. Application: Effective in outdoor cabinets, protected outdoor installations, and harsh indoor areas. Feature: Tap settings with four taps at -2.5% FCBN provide voltage regulation without external relays. Business Impact: Maintains stable secondary voltage for sensitive devices, lowering misoperation risk and maintenance needs. Application: Powering PLCs, drives, and control panels with fluctuating incoming voltages. Feature: 3 kVA, single-phase, 60 Hz design with primary 4,160 V and secondary 120/240 V meets mid-range distribution needs. Business Impact: Simplifies panel design, reduces inventory, and enables standardization across lines. Application: General-purpose distribution for conveyors, automation panels, and lighting circuits in industrial facilities.
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FAQs
Yes. S03019 is a single-phase transformer rated at 3 kVA with a 4,160 V primary and 120/240 V secondary, designed for 60 Hz operation. It uses a 12B wiring connection and a NEMA 3R enclosure, making it suitable for indoor and outdoor control panels. In addition, the 9.89 in × 10.38 in × 16 in footprint and 110 lb weight facilitate on-site handling and mounting.
S03019 provides voltage regulation through four taps at -2.5% FCBN, enabling on-site adjustment to compensate input fluctuations without external relays. For precise regulation under load conditions, consult the Eaton specification sheet. The 60 Hz single-phase design and 115 °C rise spec contribute to stable operation in typical industrial environments.
Yes. The transformer employs a NEMA 3R enclosure and an encapsulated design, which protects windings from moisture and vibration. This makes it well-suited for outdoor cabinets, damp indoor areas, and protected outdoor installations, reducing downtime due to weather-related issues and simplifying installation in mixed environments.
Certifications and listings vary by region. The product notes indicate model information and regional compliance options; for current CE, UL, or other regional listings, contact Eaton. This approach helps align the S03019 with local electrical codes and procurement requirements while supporting warranty and service considerations.
The encapsulated design, aluminum windings, and NEMA 3R enclosure reduce moisture ingress, vibration-related wear, and maintenance frequency, improving reliability and uptime. With a one-year warranty (or 18 months from shipment) and a 3 kVA rating suitable for mid-range panels, customers typically see lower maintenance costs, reduced downtime, and faster deployment across multiple control applications.