How does shipping work for orders on MRO Exchange?

Most orders ship within 1–2 business days via UPS. Larger equipment ships via freight carrier, and customers can use the shipping estimator on the product page for a location-specific quote. Local pickup is also available at the Fairfield, IL facility, typically ready within 4 hours.

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MRO Exchange accepts all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available, with payment due prior to shipment. Custom terms are available for established accounts.

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Jefferson Electric 411-0051-000 Encapsulated General Purpose Transformer Factory Sealed

$199.00 USD

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✓ 30-day returns on every item — return policy

ConditionFactory Sealed MPN411-0051-000 Stock #0526-02256

30-day returns on every item. Photos reflect the actual item’s current condition — see our return policy and condition guide.

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Jefferson Electric 411-0051-000 is a 0.5 kVA single phase encapsulated general purpose dry type transformer manufactured by Pioneer Power Solutions. The unit accepts a 240 x 480 VAC primary input and delivers a 120/240 VAC secondary output at 60 Hz. Construction is encapsulated with electrical grade resin over a high quality electrical steel core, finished in heat cured ASA 61 gray powder coat. The NEMA 3R enclosure is rated for indoor and outdoor service and measures 10.19 in H x 5.06 in W x 4.59 in D, with a temperature rise of 95 degrees C and aluminum windings. Mounting features include slotted holes for quick wall installation and a large connection compartment with knockouts for simplified wiring. A permanently affixed wiring diagram is included on the unit. Approvals listed by the manufacturer include UL, cUL, CSA, ANSI, and NEMA, with UL listing reference 241H. Typical applications include lighting circuits, general industrial loads, commercial power distribution, and step down or step up service between common North American voltage classes. Units of this construction may be banked for three phase operation when specified. The catalog number is 411-0051-000 with date code Z1703 marked on the packaging label. The shipping carton retains the original Jefferson Electric / Pioneer Power Solutions identification label. Operators sourcing replacement encapsulated transformers for machine tool control cabinets, lighting panels, HVAC equipment, or general MRO use will find this MPN aligned with current OEM specifications.

Stock # 0526-02256

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Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.

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Jefferson Electric 411-0051-000 Encapsulated General Purpose Transformer Factory Sealed