Eaton C0100E3A Industrial Control Transformer - UL Listed
Part Number: C0100E3A
Quick Summary
The Eaton C0100E3A is an industrial control transformer powering 120 V control circuits from 208/277 V mains. Engineers often struggle with compact, compliant transformers that withstand vibration and maintain consistent secondary voltages in control panels. This model is RoHS compliant and UL/cUL listed and CSA certified, confirming safety, RoHS compliance, and cross-border reliability. With epoxy encapsulation and copper windings, it supports efficient, durable power management in panels while simplifying procurement and maintenance across sites. Designed for 50/60 Hz operation and a 130°C insulation system, it reduces the risk of overload and extends lifespan in industrial environments. Its compact 3.49 in length, 3.36 in height, and 3.38 in width save panel space, while copper windings maximize efficiency and reliability.
Product Information
Extended Description
C0100E3A Eaton: Eaton Type MTE industrial control transformer, pv: 208/277v, taps: none, sv: 120v, 55°c, 100 va , cu magnet wire
Product Name
Eaton Type MTE industrial control transformer
Catalog Number
C0100E3A
UPC
786680550102
Product Length/Depth
3.49 in
Product Height
3.36 in
Product Width
3.38 in
Product Weight
4.2 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
RoHS Compliant
Certifications
cUL Certified UL Listed CSA Certified
Catalog Notes
Epoxy encapsulated, Laminations of high quality silicon steel to minimize core losses and optimize performance, 50/60Hz operation, 130°C insulation system standard, Molded-in terminals for maximum durability
Coil material
Copper windings
Design
MTE
Tap size
None
Primary voltage
208/277 V
Temperature rating
55°C
Volt ampere rating
100 VA
Secondary voltage
120 V
Feature: Copper windings with epoxy encapsulation. Business Impact: Reduces core losses, improves thermal performance, and enhances durability in vibration-prone enclosures. Application: Ideal for 50/60 Hz control panels and automation cabinets where reliability is mission-critical. Feature: 208/277 V primary to 120 V secondary, 100 VA. Business Impact: Delivers the precise control voltage needed for PLCs, relays, and motor starters with ample margin. Application: Control circuits in switchgear and panel assemblies requiring compact power sources. Feature: Molded-in terminals and high-quality silicon steel laminations. Business Impact: Provides robust, moisture-resistant connections and low core losses for long service life. Application: Harsh industrial environments with frequent maintenance cycles. Feature: Compliance and certifications. Business Impact: Streamlines multi-region procurement and regulatory approvals; reduces risk of non-compliance. Application: Global manufacturing lines and cross-border deployments. Feature: Compact footprint and weight. Business Impact: Saves panel space and simplifies retrofits, enabling denser control architectures. Application: Retrofit projects and new machine builds with tight enclosure tolerances. Feature: Insulation system rated to 130°C. Business Impact: Enhances reliability under elevated ambient temperatures, lowering failure rates. Application: Enclosures with higher heat generation or limited cooling capacity. Feature: Warranty and support. Business Impact: Reduces ownership risk with a defined policy, improving project budgeting. Application: Asset management and lifecycle planning across facilities.
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FAQs
The C0100E3A is designed for control panel installations in industrial environments. It supports 50/60 Hz operation, epoxy-encapsulated laminations, copper windings, and molded-in terminals for durable, vibration-resistant connections. Its compact footprint (3.49 in L x 3.38 in W x 3.36 in H) and 4.2 lb weight simplify enclosure layouts and enable quick retrofits in existing wiring closets and automation cabinets.
This transformer provides 120 V control voltages from common industrial mains at 208 or 277 V, supporting PLCs, relays, and contactors with minimal voltage drop. The 100 VA rating ensures adequate current for typical control circuits, while the 55°C insulation and copper windings sustain reliability in warm panels. The result is predictable, isolated control power in critical automation loops.
Yes. It is RoHS compliant and carries cUL Certified, UL Listed, and CSA Certified marks, enabling multi-market deployment. Epoxy encapsulation and molded-in terminals improve durability and moisture resistance, reducing field failures. These certifications simplify supplier qualification and help meet regulatory requirements for panel and module assemblies in North America and beyond.
Copper windings and silicon steel laminations minimize core losses, improving efficiency and lowering heat. Epoxy encapsulation protects against humidity and shocks, extending service life in harsh environments. The compact form factor saves panel space, while molded-in terminals speed installation. Combined with Eaton’s warranty terms, this translates to lower total cost of ownership and faster project ROI.
Ensure adequate clearance for heat dissipation and proper ventilation, especially in high-temperature environments. Use the molded-in terminals for clean, vibration-resistant connections and follow 50/60 Hz operation guidelines. Verify enclosure compatibility and mount orientation to suit panel layouts, and reference the Eaton datasheet for wiring diagrams and safety notes.