Eaton C0250E3AFB Industrial Control Transformer - UL Listed
Part Number: C0250E3AFB
Quick Summary
The Eaton Type MTE industrial control transformer provides 120 V control power from 208/277 V mains for panel controls. Manufacturers frequently battle mismatched voltages, cramped spaces, and reliability issues when sourcing control power. UL Listed, CSA Certified, and cUL Certified ensure safety compliance for global installations, with RoHS adherence supporting environmental and regulatory requirements. This durable unit's epoxy encapsulation, molded-in terminals, and factory-mounted fuse block simplify installation, reduce maintenance, and lower total cost of ownership in power management and distribution environments. Designed for 50/60 Hz operation and a 130°C insulation system, it suits rugged industrial applications and simplifies system integration.
Product Information
Extended Description
C0250E3AFB Eaton: Eaton Type MTE industrial control transformer, pv: 208/277v, taps: none, sv: 120v, 55°c, 250 va , cu magnet wire
Product Name
Eaton Type MTE industrial control transformer
Catalog Number
C0250E3AFB
UPC
786680550751
Product Length/Depth
4.18 in
Product Height
5.29 in
Product Width
4.5 in
Product Weight
9.4 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
UL Listed CSA Certified cUL 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
250 VA
Secondary voltage
120 V
Modification 1
Factory-mounted two-pole primary fuse block for non-rejection type fuses
Special features
Primary fuse block
Epoxy-encapsulated construction paired with silicon steel laminations delivers reliable performance in vibration-prone equipment and harsh environments. The design minimizes core losses and enhances thermal behavior, helping the 250 VA transformer maintain stable output under varying loads. Rated for 50/60 Hz and a 130°C insulation system, it suits rugged industrial control panels and machine automation applications where consistent control power matters. Copper windings enable efficient energy transfer with predictable 120 V secondary output from a 208/277 V primary. This improves relay and sensor performance, reduces voltage drop, and extends life for control circuits in conveyors, presses, and packaging lines. Molded-in terminals simplify wiring, resist wear from vibration, and speed panel assembly. The unit’s compact footprint — 4.18 in depth, 4.5 in width, and 5.29 in height — plus a 9.4 lb weight helps fit standard enclosures and leave space for field wiring.
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FAQs
For budgeting and planning, ensure the 208/277 V input and 120 V output meet your control circuit requirements, and allow space for the 4.18 in depth enclosure. Use molded-in terminals for field wiring, and plan for the factory-mounted two-pole primary fuse block. Verify enclosure ratings and mounting clearance to avoid overheating in busy panels.
The factory-mounted two-pole primary fuse block provides integrated protection for non-rejection fuses, reducing the need for external fuse holders and simplifying startup checks. This layout improves reliability by keeping protection close to the source, minimizes wiring changes during maintenance, and helps ensure fault containment in control circuits across industrial lines.
Yes. It provides a 208/277 V primary with a 120 V secondary, rated at 250 VA and 55°C insulation. The transformer uses copper windings and molded-in terminals, simplifying wiring and ensuring stable control power for relays, PLCs, sensors, and other automation devices in standard industrial panels. During equipment start-up and steady-state operation, it maintains reliable output.
RoHS compliance reduces hazardous substances in your electrical equipment, while UL Listed, CSA Certified, and cUL Certified marks support compliance with global electrical codes and product audits. Using a transformer with these certifications reduces regulatory risk, simplifies supplier qualification, and accelerates approval processes for multi-site automation projects in manufacturing and energy management environments.
The 250 VA, 120 V output design minimizes voltage fluctuations and reduces downtime for control circuits, which lowers maintenance costs over the life of your equipment. Built for durability with epoxy encapsulation and molded-in terminals, it cuts spare parts needs, speeds service, and supports long-term reliability in power management applications.